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Season 2014

  • S2014E01 Kepler's Planetary Bonanza

    • April 1, 2014
    • YouTube

    You've know that the Kepler Space Telescope has discovered HUNDREDS of new planets outside our solar system -- but how does it find them? And how do scientists tell the real planets from the celestial fake-outs? It involves a lot of patient searching -- and math!

  • S2014E02 NASA's Plan to Capture an Asteroid

    • April 3, 2014
    • YouTube

    Caitlin Hofmeister walks you through NASA's planned Asteroid Retrieval Mission, which aims to capture a space-rock and put it in lunar orbit for study -- all by 2025!

  • S2014E03 What Are Seasons Like On Other Planets?

    • April 8, 2014
    • YouTube

    Ever wonder what seasons are like on other planets? Astronomers are beginning to find out, and SciShow Space explains how they know, what causes the change in seasons, and what "summer" might mean on distant worlds.

  • S2014E04 Oceans on Saturn's Moon Enceladus!

    • April 10, 2014
    • YouTube

    NASA's Cassini spacecraft has detected a huge ocean under the surface of Saturn's moon Enceladus. But how? And what does it really mean? Hank lays out the data -- straight from space to your brain!

  • S2014E05 Why Is Pluto Not A Planet?

    • April 15, 2014
    • YouTube

    Pluto's not a planet. We're sorry, but we think it's time you move on. If you've gone through all your breakup music and Meg Ryan movies, and you still can't get over it, then SciShow Space will get out the ice cream, cuddle up with you on the couch, and talk about how this could have happened.

  • S2014E06 Asteroids, Exomoons, and a Crash on the Moon

    • April 17, 2014
    • YouTube

    Caitlin serves up the latest in space-science news, this week featuring developments in missions dedicated to sampling asteroids, detecting exomoons, and solving the mysteries of the moon.

  • S2014E07 Where Does the Solar System End?

    • April 22, 2014
    • YouTube

    SciShow Space explains how different experts define our the boundaries of our solar system and why it's way more complicated (and interesting) than it sounds.

  • S2014E08 New Earth-Size Planet and a Solar Eclipse

    • April 24, 2014
    • YouTube

    Caitlin Hofmeister gives you the latest news from around the universe, including Kepler's latest exoplanet discovery, an upcoming solar eclipse, and a breathtaking image from Hubble.

  • S2014E09 Where Did the Moon Come From?

    • April 29, 2014
    • YouTube

    SciShow Space takes you to the moon! Learn about the competing theories about how Earth's closest neighbor formed.

  • S2014E10 Microbes From Space and Bits of Halley's Comet

    • May 1, 2014
    • YouTube

    SciShow Space gives you the latest in Space News, including fascinating facts about the latest visitors to the ISS, how to spot the Eta Aquarids meteor shower, and a new discovery in our own celestial neighborhood.

  • S2014E11 White Holes: An Impossible Possibility

    • May 6, 2014
    • YouTube

    Reid Reimers expands your mind with an explanation of white holes -- celestial objects that almost definitely are not real things that can be found in nature. Except, we might have actually seen one.

  • S2014E12 'Secret' Space Plane, and Curiosity's New Rock

    • May 8, 2014
    • YouTube

    Caitlin delivers the latest developments from around the universe, including Curiosity's latest drill, the low-down on that "secret" space plane, and the dimmest galaxy ever detected.

  • S2014E13 The History, and Future, of Space Suits

    • May 13, 2014
    • YouTube

    Reid Reimers explains one of the often-overlooked technologies that humans need to live in, and explore, space: space suits. Learn about the hundred-year history of the pressurized suit, and see what the future of space couture might look like.

  • S2014E14 Solar Flares and a Virtual Universe

    • May 15, 2014
    • YouTube

    SciShow Space takes you inside solar flares, and how we've managed to get the best look at one yet, along with news about a new, Web-based simulation of the earliest days of the universe that you can explore yourself!

  • S2014E15 The Asteroid Belt: Not What You Think!

    • May 21, 2014
    • YouTube

    Buckle up for a trip to the asteroid belt -- though it's not nearly as dangerous out there as you might think. But there's a LOT waiting to be discovered, including some crucial clues about the formation of the solar system itself.

  • S2014E16 Space Station Science and NASA's Flying Saucer

    • May 23, 2014
    • YouTube

    SciShow Space shares the latest news from around the universe, including a wrap-up of the experiments conducted in the last space station mission, a test of a new "flying saucer" device from NASA, and new life for our old friend, the Kepler Space Telescope!

  • S2014E17 Minerva and the New Hunt for Alien Worlds

    • May 27, 2014
    • YouTube

    SciShow explains the science of detecting exoplanets -- planets in orbit around distant stars -- and how a new observatory being built in California may open up whole new worlds to us, literally!

  • S2014E18 New Supernova, and Internet on the Moon

    • May 30, 2014
    • YouTube

    SciShow Space shares the latest news from the around the universe, including the first supernova observed in real time, and Internet service on the moon. Finally!

  • S2014E19 What Is Gravitational Lensing?

    • June 3, 2014
    • YouTube

    Learn more about gravitational lensing with host Caitlin Hofmeister.

  • S2014E20 SpaceX's Awesome New Craft, and 'Mega-Earth' Discovered

    • June 5, 2014
    • YouTube

    SciShow Space gives you the latest news from around the universe, including the discovery of a new class of exoplanet dubbed a "mega-Earth," and a tour of SpaceX's new crewed vehicle, the Dragon V2.

  • S2014E21 4 Awesome NASA Inventions You Use Every Day

    • June 10, 2014
    • YouTube

    SciShow Space shares four wonderful things that you probably use every day, all made possible by NASA technology.

  • S2014E22 The First Star-Within-A-Star

    • June 12, 2014
    • YouTube

    SciShow Space shares the latest news from around the universe, including the first observation of a star-within-a-star, and the debut image from the newest telescope to be enlisted in the hunt for alien worlds.

  • S2014E23 The Oort Cloud: Believe it or Not

    • June 17, 2014
    • YouTube

    Learn about the Oort Cloud with host Reid Reimers on this episode of SciShow Space!

  • S2014E24 NASA's Next Target: Earth

    • June 19, 2014
    • YouTube

    SciShow Space News tells you about NASA's latest launch -- the first mission dedicated to measuring carbon dioxide in the atmosphere -- and gives you a primer on what the June solstice really is!

  • S2014E25 What Would Earth Be Like Without a Moon?

    • June 23, 2014
    • YouTube

    SciShow Space takes to you a world where the night is always dark, the tides are paltry -- and the days are only 8 hours long. See how different Earth would be if there were no moon!

  • S2014E26 The Great Attractor: A Truly Massive Mystery

    • July 2, 2014
    • YouTube

    There's something out there SO massive that it's pulling on every object within hundreds of millions of light years. But we can't see it! So what DO we know? Today on SciShow Space, Reid Reimers tells us more about the Great Attractor.

  • S2014E27 Titan's 'Magic Island' and A Triple Black Hole!

    • July 4, 2014
    • YouTube

    Join Caitlin Hoffmeister in this episode of SciShow Space News as we explore the universe!

  • S2014E28 How Do Satellites Get & Stay in Orbit?

    • July 9, 2014
    • YouTube

    SciShow Space takes you into Low Earth Orbit to explain how artificial satellites get up there and stay there -- at least for a while.

  • S2014E29 Water Weirdness: Sweaty Comets, and Titan's Hidden Oceans

    • July 11, 2014
    • YouTube

    SciShow News gives you some wet and weird developments from around the solar system, including new insights about what liquid lurks under the surface of Titan, and a sweaty comet that's been spotted on its way toward the sun.

  • S2014E30 Rogue Planets, Loners of the Universe

    • July 15, 2014
    • YouTube

    Meet one of the newest celestial bodies to be discovered: rogue planets, worlds that hurtle around the galaxy without any parent star. Caitlin Hofmeister explains how we found them, and where we think they might have come from.

  • S2014E31 4 Important Lessons from the Apollo 11 Moon Landing

    • July 17, 2014
    • YouTube

    SciShow Space celebrates the 45th anniversary of the first moon landing by highlighting just four of the most important things we learned from the Apollo 11 mission.

  • S2014E32 Moonquakes and Marsquakes

    • July 22, 2014
    • YouTube

    SciShow Space explores the origins of Earthquakes that aren't on Earth. Moonquakes and Marsquakes can happen, too!

  • S2014E33 Watch the Delta Aquarids, and Meet NASA's 'Aquanauts'

    • July 24, 2014
    • YouTube

    SciShow Space preps you for the Delta Aquarids, a meteor shower, and explains what makes them so unique. Plus, join “aquanauts” on one of NASA’s least-known missions, a nine-day tour in its NEEMO undersea laboratory.

  • S2014E34 Is Earth Getting Heavier?

    • July 29, 2014
    • YouTube

    SciShow Space tackles a viewer question: Is the Earth getting heavier? The answers -- there’s actually more than one -- may surprise you!

  • S2014E35 Dry New Planets and The Search for Dirty Aliens

    • July 31, 2014
    • YouTube

    SciShow Space shares the latest news from space research, including the first definitive detection of water on an exoplanet, and a new theory for how we should search for alien civilizations.

  • S2014E36 How Do Astronauts Do Their Business?

    • August 5, 2014
    • YouTube

    So how do astronauts manage to pee and poop in microgravity? And what happens to all of their waste? Do you really want to know? If you do, the answers are inside!

  • S2014E37 Our Next Mission to Mars, and How the Sun Will Kill the Internet

    • August 7, 2014
    • YouTube

    SciShow Space shares the latest news from around the universe, including new details about our next mission to Mars, and a study that predicts a catastrophic solar storm may be more likely than we thought.

  • S2014E38 What's It Like On Mercury?

    • August 12, 2014
    • YouTube

    SciShow Space takes you on a tour of Mercury, the sun’s closest friend, where a year is just a day and half long, and the surface holds many surprises -- like ice!

  • S2014E39 Comet Chase & Molten Moons

    • August 14, 2014
    • YouTube

    In this episode of SciShow Space News, Hank details the work of the European Space Agency’s Rosetta spacecraft. He also explains the new discoveries of Jupiter's moon Io.

  • S2014E40 The Supernova of 1054, Our Very Special 'Guest Star'

    • August 19, 2014
    • YouTube

    All of humanity likely saw it, a brilliant supernova that lit up the daytime sky in 1054. But 960 years later, there’s still a lot we don't quite understand about the famous celestial phenomenon.

  • S2014E41 Stardust Discovery, and 2 Planetary Conjunctions

    • August 21, 2014
    • YouTube

    SciShow Space shares the latest developments from around the universe, including news about the first material ever collected from outside the solar system, and a backyard astronomers’ guide to two upcoming planetary conjunctions.

  • S2014E42 Astronaut Weightlessness Training

    • August 26, 2014
    • YouTube

    SciShow Space takes you behind the scenes of astronaut training, to show how crew members and their equipment are tested in microgravity, all while never having to leave Earth.

  • S2014E43 Epic Meteor Adventure and Ozone Mystery

    • August 28, 2014
    • YouTube

    SciShow explores two celestial mysteries: the origins of a meteorite that crashed into a house in California, and who’s releasing chemicals into the atmosphere that were banned more than 25 years ago?

  • S2014E44 The Smallest Star in the Universe

    • September 2, 2014
    • YouTube

    SciShow Space takes you to the smallest star in the universe, and explains how astronomers figured out that’s what it was!

  • S2014E45 The Most Powerful Rocket Ever, and Gecko Sex in Space

    • September 4, 2014
    • YouTube

    SciShow Space News shares the latest developments from around the universe, including NASA’s plan to build the world’s most powerful rocket, and the fate of Russian geckos sent to have sex in space.

  • S2014E46 How Much of Me Is 'Star Stuff?'

    • September 9, 2014
    • YouTube

    Carl Sagan famously observed that we are all made of “star stuff.” But what does that mean? And how much of you is really made of dead stars? SciShow Space explains!

  • S2014E47 Our New Galactic Neighborhood, and a Tar Comet?

    • September 11, 2014
    • YouTube

    SciShow Space shares the latest news from around the universe, including new insights into the giant supercluster of galaxies that we call home, and the first “data baby” from Rosetta’s rendezvous with a comet.

  • S2014E48 What's It Like on ... Venus?

    • September 16, 2014
    • YouTube

    SciShow Space takes you on a tour of Venus, a world with such an extreme environment that you might call it “Earth’s evil twin.”

  • S2014E49 Curiosity's Sequel, and the Key to Finding Alien Life

    • September 18, 2014
    • YouTube

    SciShow Space News shares the latest developments from around the universe, including the Curiosity’s arrival at its final destination, and new insights into what clues we should really be looking for in our search for alien life.

  • S2014E50 The Future of Our Sun and Earth

    • September 24, 2014
    • YouTube

    SciShow Space gives you a blow by blow account of what’s going to happen to the sun -- and Earth.

  • S2014E51 2 Weird Experiments in Human Space Flight

    • September 25, 2014
    • YouTube

    SciShow Space News reveals two weird experiments in human spaceflight: one showed us what it really feels like to walk on the moon, the other put ordinary people through space flight simulation to see how they did. Find out inside!

  • S2014E52 What Would Happen If the Planets Lined Up?

    • September 30, 2014
    • YouTube

    Planetary alignments: They’re the favorite astronomical scenario of kooks, con artists, and Hollywood producers everywhere. But has it ever happened? And what would it do to Earth if it did?

  • S2014E53 A 'New Neptune' With Water, and Cyanide in Space

    • October 2, 2014
    • YouTube

    SciShow Space News shares the latest developments from around the universe, including the discovery of water vapor on a new “exo-Neptune,” and cyanide found in the clouds where stars are born.

  • S2014E54 Great Minds of Astronomy: Cecilia Payne-Gaposchkin

    • October 7, 2014
    • YouTube

    Welcome to SciShow Space! In this episode Caitlin Hofmeister will talk about Cecilia Payne-Gaposchkin, one of the most influential women in astronomy!

  • S2014E55 Earth's Underwater Topography & The Recent Space Walk

    • October 9, 2014
    • YouTube

    We just mapped out 80% of our earth and gave the ISS a tuneup! Hank Green explains what is going on in this episode of SciShow Space News!

  • S2014E56 The Most Dangerous Part of Space Travel: Coming Home

    • October 14, 2014
    • YouTube

    SciShow Space takes you through perhaps the scariest part of every space mission -- re-entry. How do astronauts survive the turbulent return to Earth’s atmosphere? Math, y’all!

  • S2014E57 A New Comet's Very, Very Near Miss

    • October 16, 2014
    • YouTube

    This week, a new comet will make its first visit to the inner Solar System, just barely missing Mars (we hope). SciShow Space News takes you there!

  • S2014E58 How Do Spacecraft Survive Re-Entry?

    • October 21, 2014
    • YouTube

    How do spacecraft survive the enormous heat and crushing g’s of re-entry? And why don’t astronauts actually land in rockets, like they do in cartoons and comic books? SciShow Space explains!

  • S2014E59 Saturn's 'Death Star' and Hubble's Latest Masterpiece

    • October 23, 2014
    • YouTube

    SciShow Space News takes you to the solar system’s own Death Star -- Saturn’s moon Mimas, where something mysterious is going on. Plus, we share a stunning new photo from the Hubble Space Telescope that holds a few surprises!

  • S2014E60 Zombie Stars Discovered!

    • October 28, 2014
    • YouTube

    SciShow Space reveals the discovery of a whole new kind of supernova, and the undead stars they leave behind.

  • S2014E61 A Smelly Comet and a Record-Breaking Skydive

    • October 30, 2014
    • YouTube

    SciShow Space News gives you a whiff of comet 67P, and takes you through a record-breaking skydive from an altitude five times the height of Mount Everest.

  • S2014E62 Hardcore Metal Stars

    • November 4, 2014
    • YouTube

    SciShow Space describes a new phenomenon that might be out there: Stars made entirely out of metal. But it’s not quite what it sounds like!

  • S2014E63 Two Tragic Crashes

    • November 6, 2014
    • YouTube

    SciShow Space News looks into two recent rocket failures over U.S. soil, exploring possible causes and sizing up the risks of spaceflight since humans first started reaching for the stars.

  • S2014E64 Terraforming: Can We Turn Mars Into Earth 2.0?

    • November 11, 2014
    • YouTube

    Are there ways to terraform Mars -- that is, make it habitable for humans? Some scientists think so. They have big plans, but they also face some big obstacles.

  • S2014E65 We Land on a Comet!

    • November 13, 2014
    • YouTube

    SciShow Space News gives you the update of the historic mission that has, for the first time ever, landed a spacecraft on the surface of a comet!

  • S2014E66 Great Minds: Robert Goddard, Original Rocket Scientist

    • November 18, 2014
    • YouTube

    Get to know Robert Goddard, one of the original rocket scientists!

  • S2014E67 RIP Philae? The Latest on the Comet Mission

    • November 20, 2014
    • YouTube

    SciShow Space News explains what happened to Philae, the first spacecraft on the surface of a comet, and shares what scientists say about the future of the mission.

  • S2014E68 Could Life Be Older Than Earth?

    • November 23, 2014
    • YouTube

    SciShow Space explores new theories about the timing of the development of life on Earth, and elsewhere in the universe.

  • S2014E69 Get Ready for Orion

    • November 27, 2014
    • YouTube

    On Thursday, December 4th, NASA will conduct the first test flight of its new deep space crew vehicle, going farther than any passenger vehicle has in over 40 years. Get ready to meet Orion!

  • S2014E70 The Gamma Ray Burst of 775

    • December 3, 2014
    • YouTube

    About 1200 years ago, Earth may have experienced one of the rarest and most powerful cosmic events a planet can be exposed to: a gamma-ray burst. If it did, well, let’s just say that we, as living things on Earth, are lucky it wasn’t worse.

  • S2014E71 Airglow: Why The Night Sky Is Really Green

    • December 9, 2014
    • YouTube

    If you look closely enough, you’ll see the night sky is actually a little green. SciShow Space explains the science behind the phenomenon known as airglow.

  • S2014E72 What Happened on Orion's First Flight

    • December 11, 2014
    • YouTube

    SciShow Space News takes you step by step through the first voyage of the Orion spacecraft.

  • S2014E73 Wernher von Braun: From Nazis to NASA

    • December 16, 2014
    • YouTube

    The American space program wouldn’t be what it is today if it weren’t for the contributions of a scientist who was also a former Nazi. Learn about the life and work of rocket scientist Wernher von Braun.

  • S2014E74 SpaceX's Risky Reusable Rocket Launch

    • December 18, 2014
    • YouTube

    SciShow Space walks you through this week’s upcoming nail-biter: SpaceX’s attempt to land a reusable rocket on a platform in the Atlantic Ocean.

  • S2014E75 The Black Hole at the Center of Our Galaxy: Don't Panic!

    • December 23, 2014
    • YouTube

    SciShow Space explores the supermassive black hole spinning at the center of our galaxy, and how we’ve all learned to live with it in harmony.

  • S2014E76 We Are Sending a Probe into the Sun

    • December 30, 2014
    • YouTube

    Why are we sending a rocket into the sun? SciShow Space explains the why, what and how of Solar Probe Plus, a mission that’ll give us our closest look yet at our nearest star.

Season 2015

  • S2015E01 Future Space News of 2015: Destination Ceres and Pluto!

    • January 1, 2015
    • YouTube

    SciShow Space brings you NEWS FROM THE FUTURE, with details about the space missions to look forward to in 2015.

  • S2015E02 Does the Sun Have Long-Lost Siblings?

    • January 6, 2015
    • YouTube

    The sun may have thousands of stellar siblings, many of them probably just like it, elsewhere in the galaxy. Find out how astronomers are looking for them, and learn about a match that could be our star’s long-lost sibling!

  • S2015E03 8 New Earth-Like Planets Discovered!

    • January 8, 2015
    • YouTube

    SciShow Space starts the year off with a bang, and the discovery of 8 Earth-like planets, two of which may be the most promising candidates yet for harboring life.

  • S2015E04 How Long Would You Survive on Mars?

    • January 13, 2015
    • YouTube

    Just how long could you survive on the surface of Mars without a spacesuit? Find out what it’d be like to stand on the surface of Mars, if you forgot to pack properly.

  • S2015E05 The Pillars of Creation and Spotting Comet Lovejoy

    • January 15, 2015
    • YouTube

    This week in space news, a new makeover for one of the Hubble Telescope’s most famous images, and tips on spotting Comet Lovejoy in the night sky.

  • S2015E06 The Biggest Stars in the Galaxy

    • January 20, 2015
    • YouTube

    Learn about hypergiant stars -- stars that make the sun look ridiculously tiny.

  • S2015E07 An Asteroid Flyby, and Good Morning, New Horizons!

    • January 22, 2015
    • YouTube

    This week in SciShow Space News we bring you the latest on what to expect from NASA's New Horizons deep space mission and what asteroids to watch for in the coming years!

  • S2015E08 Great Minds: Sergei Korolev, The Chief Designer

    • January 27, 2015
    • YouTube

    Most people have never heard of him. But Soviet scientist Sergei Korolev quietly developed the revolutionary rocket technology that we still use today.

  • S2015E09 New Views of a Comet, and 5 Ancient Planets Discovered

    • January 29, 2015
    • YouTube

    SciShow News serves up the latest pictures from Comet 67-P, that media darling, and the discovery of what may be the oldest, rocky Earth-like worlds yet found.

  • S2015E10 The Year-Long Twin Astronauts Experiment

    • February 3, 2015
    • YouTube

    Astronauts Scott Kelly and Mikhail Kornienko will soon undertake a historic, record-breaking mission: to live in space for an entire year. And scientists will have some extra help studying the effects of this extended stay on the astronauts -- Kelly’s twin brother Mark!

  • S2015E11 The Next Search for Alien Life, and Release the Cubesats!

    • February 6, 2015
    • YouTube

    SciShow Space explores the latest mission to search for extraterrestrial life, and the mission of two tiny satellites that aims to make space travel safer.

  • S2015E12 The Moon Has a Tail!

    • February 10, 2015
    • YouTube

    Did you know the moon has a tail? No one did, until 1998, and we’ve been trying to figure it out ever since.

  • S2015E13 The Amazing Cosmic Discovery That Almost Was

    • February 12, 2015
    • YouTube

    SciShow Space News revisits one of the biggest (potential) astronomical discoveries of 2014, one that promised to revolutionize our understanding of the formation of the universe. Turns out, we’re not quite there yet.

  • S2015E14 Buran: The Space Shuttle That Almost Was

    • February 17, 2015
    • YouTube

    Did you know the Soviet Union had its own Space Shuttle? Learn all about the Buran, what happened to it, and what innovations set it apart from its NASA counterpart.

  • S2015E15 3D Printing in Space, and When Venus Meets Mars

    • February 20, 2015
    • YouTube

    SciShow Space News gives you the latest from a batch of experiments on the Space Station, a new mission to forecast space weather, and a guide to this year’s conjunction of Mars and Venus!

  • S2015E16 The Strange Case of Eta Carinae A

    • February 25, 2015
    • YouTube

    Eta Carinae A, a star that briefly held the title of the second-brightest star in the sky, has been dazzling astronomers for centuries. Learn more about this type of supermassive, mega-luminous star, known as a Luminous Blue Variable.

  • S2015E17 Does Dark Matter Cause Extinctions?

    • February 26, 2015
    • YouTube

    New discoveries into two weird things that may have played havoc with the ancient solar system: dark matter and a wandering star.

  • S2015E18 The Future of Space Telescopes: Umbrellas & Glitter!

    • March 3, 2015
    • YouTube

    After Hubble and Webb, what’s the future of space telescopes? Two ideas in planning stages right now involve the space-age versions of umbrellas and glitter.

  • S2015E19 An Impossible Black Hole, and Finally Meeting Ceres

    • March 5, 2015
    • YouTube

    SciShow Space takes you to a distant, ancient black hole that … really shouldn’t be, and psyches you up for the Dawn spacecraft’s final approach to Ceres!

  • S2015E20 Space Particles Are Flying Through You Right Now!

    • March 10, 2015
    • YouTube

    Tiny remnants of extreme nuclear reactions in space are flying through your body right now. And astronomers are hunting them to learn more about some of the most energetic and violent objects in the universe.

  • S2015E21 The Solar Eclipse of 2015!

    • March 13, 2015
    • YouTube

    This week, an update on Dawn’s rendezvous with Ceres, a changing of the guard on the ISS, and a viewer’s guide to this year’s solar eclipse!

  • S2015E22 Astronauts' Arch-Enemy: Dust

    • March 17, 2015
    • YouTube

    For astronauts, dust is no joke. On the moon and Mars, dust isn’t at all like the stuff under your bed. It can be poisonous, corrosive, even made of razor-sharp glass. So future astronauts are going to need more than a dust buster to get their jobs done.

  • S2015E23 Water on Ganymede, and NASA Needs Your Help!

    • March 19, 2015
    • YouTube

    Which is a bigger deal to you? The discovery that there’s probably more water on Jupiter’s moon Ganymede than all the oceans on Earth? Or the fact that you can now help NASA find asteroids? Learn about both, then decide for yourself!

  • S2015E24 The Coldest Place in the Universe

    • March 24, 2015
    • YouTube

    When the Cold Atom Laboratory launches to the International Space Station in 2016, it will become the coldest spot in the universe. Learn how scientists are going to get closer than ever to absolute zero -- and why they want to.

  • S2015E25 A Year in Space, and the Lunar Eclipse!

    • March 26, 2015
    • YouTube

    Two astronauts are about to embark on the One Year Mission which can help us understand more about the long-term effects of being in space, and there is an upcoming total lunar eclipse (the shortest one this century)!

  • S2015E26 There's Alcohol in the Middle of the Galaxy!

    • March 31, 2015
    • YouTube

    There’s a massive cloud in the center of our galaxy, and it’s full of alcohol. Party in the Milky Way! But how did it get there? And what does it have to do with the search for life elsewhere in the universe? SciShow Space explains!

  • S2015E27 NASA's Ambitious Asteroid Mission

    • April 2, 2015
    • YouTube

    SciShow Space is one year old! And we’re celebrating by talking about new plans for a mission we told you about in our very first episode of SciShow News!

  • S2015E28 Take a Tour of Jupiter and Saturn

    • April 7, 2015
    • YouTube

    If you could pilot a spaceship into Jupiter and Saturn, would you ever hit anything solid? And what’s it like in there? SciShow Space takes you on a tour of the two biggest gas giants in the solar system.

  • S2015E29 Citizen Astronomy FTW

    • April 9, 2015
    • YouTube

    This week, some rather confusing news from the Moon, and details about how ordinary folks like you helped classify 2 million celestial objects in just five days!

  • S2015E30 The Biggest Volcano in the Solar System

    • April 14, 2015
    • YouTube

    Get to know Olympus Mons on Mars, the biggest volcano in the solar system, and find out why a planet that’s smaller than Earth has volcanoes that are bigger than ours!

  • S2015E31 Is There Liquid Water on Mars?

    • April 16, 2015
    • YouTube

    Mars might be full of salty liquid water! Plus, a guide to the upcoming Lyrids meteor shower.

  • S2015E32 Could There Be Planets Beyond Neptune?

    • April 21, 2015
    • YouTube

    Did you grow up thinking there were nine planets in the solar system? You might have been right all along! Today we discuss the possibility of distant worlds in our solar system.

  • S2015E33 25 Years of Hubble, and MESSENGER's Grand Finale

    • April 23, 2015
    • YouTube

    SciShow Space News explains two of the Hubble Space Telescope’s most important discoveries, and why the MESSENGER probe is about to crash into Mercury.

  • S2015E34 Hanny's Voorwerp: The Mystery Blue Blob

    • April 28, 2015
    • YouTube

    In 2007, Hanny van Arkel noticed a blue blob next to a galaxy. Eight years later, scientists are still trying to figure out how it got there.

  • S2015E35 A New Way to Find Planets!

    • April 30, 2015
    • YouTube

    For the first time, astronomers have detected the light coming from an exoplanet. SciShow Space News explains how they did it, and why it was so difficult in the first place.

  • S2015E36 The Future of Life in the Solar System

    • May 5, 2015
    • YouTube

    In five billion years, the Sun’s going to evolve into a red giant. That’s bad news for Earth, but exciting for some of the worlds a little farther out.

  • S2015E37 The Lost Cargo Ship, and Pluto Has Ice Caps!

    • May 7, 2015
    • YouTube

    SciShow Space News explains how we lost track of a resupply mission, explores Pluto’s newfound ice caps, and helps you find Mercury.

  • S2015E38 Weird Names Around the Solar System

    • May 12, 2015
    • YouTube

    Not all of the objects in the solar system are named after Greek and Roman gods -- some are named after literary figures, movie stars, and don’t get us started on what people think Earth is really called.

  • S2015E39 The Truth About Warp Drive

    • May 14, 2015
    • YouTube

    Join us for a trip into the SciShow Space News Debunker, where we explore the rumors that NASA has created a warp drive.

  • S2015E40 The Weirdness of Jupiter's Great Red Spot

    • May 19, 2015
    • YouTube

    It’s Jupiter’s beauty mark — but do you know where the Great Red Spot came from, or how long it’s been there, or how long it’ll continue to exist? Well, neither do scientists, really.

  • S2015E41 Help Us Survive on Mars, and Name Your Own Planet!

    • May 21, 2015
    • YouTube

    This week on SciShow Space News, we finally find out what’s causing those dark lines on Europa. Plus, learn how to become space-famous!

  • S2015E42 Why Doesn't Earth Have Rings?

    • May 26, 2015
    • YouTube

    Plenty of other planets in the Solar System have rings. So why not Earth?

  • S2015E43 Hooray for Astromice!

    • May 28, 2015
    • YouTube

    This week on SciShow Space News, we’re learning more about the side effects of space travel… from mice. Plus, we explore the most luminous galaxy!

  • S2015E44 Is There Sound in Space?

    • June 2, 2015
    • YouTube

    Sound can’t actually travel through a vacuum like space, but scientists have learned that there’s still plenty to hear.

  • S2015E45 Mission to Europa Unveiled!

    • June 5, 2015
    • YouTube

    NASA has announced the scientific instruments for the Europa Clipper mission, and Cassini has passed Hyperion, the so-called “spongy moon,” for the last time.

  • S2015E46 Choosing a Telescope: Bigger Isn't Always Better!

    • June 9, 2015
    • YouTube

    Before you take your relationship with space to a new level by getting a telescope, find out what you really need to make the most of your summer nights staring at the sky.

  • S2015E47 The Biggest Telescope EVAR!

    • June 11, 2015
    • YouTube

    Their return was delayed for a while, but three ISS crew members are finally home. Plus, engineers have started assembling the Giant Magellan Telescope!

  • S2015E48 Exploring Uranus and Neptune

    • June 17, 2015
    • YouTube

    Join SciShow Space as we complete our tour of the Solar System planets with the ice giants, Uranus and Neptune.

  • S2015E49 Good Morning, Philae!

    • June 18, 2015
    • YouTube

    The Philae lander is awake! And it’s sending us data straight from Comet 67P!

  • S2015E50 New Rovers: A Robot Eel and a Submarine!

    • June 23, 2015
    • YouTube

    NASA’s looking to send a giant robotic space eel to explore Europa, and a submarine to Titan. Let’s go for a swim!

  • S2015E51 Bright Spots on Ceres, and Volcanoes on Venus

    • June 25, 2015
    • YouTube

    Dawn is spiraling in for a closer look at Ceres, and researchers have discovered the best evidence yet for active volcanoes on Venus. Plus, check out Venus and Jupiter right next to each other in the sky!

  • S2015E52 The 3 Biggest Space Impacts Ever

    • June 30, 2015
    • YouTube

    Celebrate Asteroid Day by learning about the 3 biggest collisions that Earth has experienced with celestial objects.

  • S2015E53 "Spaceflight Is Hard"

    • July 2, 2015
    • YouTube

    An ISS-bound rocket exploded on Sunday, and New Horizons has a tough job finding Pluto.

  • S2015E54 3 Body Hacks For Stargazers

    • July 7, 2015
    • YouTube

    Before you head out on your next stargazing adventure, SciShow Space has some tips for you.

  • S2015E55 Rosetta Didn't Find Aliens!

    • July 9, 2015
    • YouTube

    New Horizons went into safe mode and lost a few days of science observations. And there seems to be some confusion over whether there are aliens on Comet 67P.

  • S2015E56 The Fermi Paradox and Our Search for Alien Life

    • July 14, 2015
    • YouTube

    At least some advanced civilizations might be producing tons of waste heat by now. And researchers are looking for them.

  • S2015E57 The Fastest Human-Made Object Ever

    • July 16, 2015
    • YouTube

    The record for the fastest thing ever created by humans is a tie between the Helios 2 probe… and a manhole cover.

  • S2015E58 What We've Learned from the Pluto Flyby!

    • July 21, 2015
    • YouTube

    New Horizons is teaching us all about Pluto! And it’s definitely not what we were expecting.

  • S2015E59 There's a Giant Hole in the Universe

    • July 23, 2015
    • YouTube

    There’s basically a hole in the universe -- a region where there’s much less matter than there should be. And we don’t know why it’s there.

  • S2015E60 Could the Firefly Universe Exist?

    • July 28, 2015
    • YouTube

    Firefly takes place in an incredibly complicated star system. But it probably couldn’t exist, because physics.

  • S2015E61 Pluto's Runaway Atmosphere, and Earth's 'Cousin'

    • July 30, 2015
    • YouTube

    According to some of the latest New Horizons data, Pluto’s got flowing nitrogen ice and only half the atmosphere it had two years ago. Plus, the latest batch of exoplanets includes a world that’s a lot like Earth... probably.

  • S2015E62 Why Don't Spaceships Have Artificial Gravity?

    • August 4, 2015
    • YouTube

    We've seen this done in movies right? Well, why don't spaceships have this technology?

  • S2015E63 New Results from Philae, and the Perseids Meteor Shower!

    • August 6, 2015
    • YouTube

    This week on SciShow Space News, a new set of studies is teaching us all about Comet 67P. And the Perseids meteor shower is coming up!

  • S2015E64 3 Messages We've Sent to Extraterrestrials

    • August 11, 2015
    • YouTube

    In the 1970s, astronomers Carl Sagan and Frank Drake developed the first messages intentionally sent out of our solar system. But how do you describe yourself to beings who have no concept of life on Earth?

  • S2015E65 Space-Grown Vegetables, and the Ring That Shouldn't Exist

    • August 13, 2015
    • YouTube

    Astronauts ate some space-grown lettuce, and astronomers discovered a ring of galaxies that’s so big it defies the laws of physics.

  • S2015E66 Robert Evans, Supernova Superstar

    • August 18, 2015
    • YouTube

    A backyard astronomer holds the world record for most supernovas found by searching manually. He’s memorized what over a thousand galaxies look like.

  • S2015E67 Solving the Mysteries of Saturn

    • August 20, 2015
    • YouTube

    This week on SciShow Space News, Cassini visited Saturn’s moon Dione for the last time, and two little shepherd moons may have helped form some of Saturn’s rings.

  • S2015E68 Turning Astronaut Pee Into Plastic

    • August 25, 2015
    • YouTube

    NASA recently sponsored new research into turning human waste into useful things, like food and plastic. And it might be used on long-term spaceflight someday.

  • S2015E69 Fire Fountains on the Moon

    • August 27, 2015
    • YouTube

    This week on SciShow Space News, researchers have figured out which gas drives fire fountain eruptions on the Moon. And you can send a message or your name to the Moon or Mars!

  • S2015E70 Great Minds: Katherine Johnson, Human Computer

    • September 1, 2015
    • YouTube

    In the early days of spaceflight, if NASA needed to plot a rocket’s path or confirm a computer’s calculations, they knew who to ask: Katherine Johnson.

  • S2015E71 Has Stephen Hawking Solved a Black Hole Paradox?

    • September 3, 2015
    • YouTube

    Stephen Hawking recently announced that he’d come up with an answer to one of the biggest questions in physics. But it’ll probably be a while before we know exactly what it is.

  • S2015E72 Spock, Hillary, Cthulhu & Other New Names for Pluto and Its Moons

    • September 8, 2015
    • YouTube

    Earlier this year, NASA put out a call for names for features on Pluto and its moons based on an established set of rules. Now, it’s finally time to put those names on the map.

  • S2015E73 Destroying Space Junk With Lasers, and Two Rare Eclipses!

    • September 10, 2015
    • YouTube

    This week on SciShow Space News, astronauts had to take the scenic route to the ISS because of some space debris. And this month, you might get to see two eclipses: a solar eclipse, and a rare supermoon eclipse.

  • S2015E74 Building a Dyson Sphere

    • September 15, 2015
    • YouTube

    What if an advanced civilization ran out of room to grow on their home planet? Their best bet might be to build settlements in space, so they could capture more of their star’s energy.

  • S2015E75 Let's Nuke Mars!

    • September 17, 2015
    • YouTube

    Elon Musk thinks that we can make Mars habitable by nuking it. But would that really work?

  • S2015E76 3 Epic Space Mission Fails

    • September 22, 2015
    • YouTube

    Space missions are difficult. Reid describes three epic space mission fails!

  • S2015E77 The Ocean on Enceladus is Really Big

    • September 24, 2015
    • YouTube

    This week on SciShow Space News, Saturn’s moon Enceladus probably has a giant ocean covering the entire world. And the year-long mission to the International Space Station just hit its halfway point!

  • S2015E78 Journey to the Center of the Galaxy

    • September 29, 2015
    • YouTube

    Find out what kinds of things are lurking near the center of our galaxy!

  • S2015E79 Why Comet 67P Is Shaped Like a Duck, and New Pluto Photos!

    • October 2, 2015
    • YouTube

    This week on SciShow Space News, photos of Comet 67P and Pluto are helping us solve old mysteries and creating some new ones.

  • S2015E80 The Wow! Signal

    • October 6, 2015
    • YouTube

    Deep in an archive in Columbus, Ohio, there’s a slip of paper with a bunch of random-looking letters and numbers printed on it called the ‘Wow’ signal.

  • S2015E81 5 Places NASA May Go to Next

    • October 8, 2015
    • YouTube

    NASA just announced the five finalists for the next Discovery missions. It looks like we’ll be sending probes to Venus, studying asteroids, or both!

  • S2015E82 Have We Contaminated the Moon?

    • October 13, 2015
    • YouTube

    Humans are full of microbes. Humans also went to the Moon. Does that mean we left colonies over there?

  • S2015E83 The Lakes and Rivers of Ancient Mars

    • October 15, 2015
    • YouTube

    Ancient Mars had a lot of water! This week on SciShow Space News, scientists analyzed the Curiosity rover’s data on the rocks in Gale Crater, using it to learn more about what the lakes and rivers on olden-day Mars might have looked like.

  • S2015E84 How We Figured Out That Earth Goes Around the Sun

    • October 20, 2015
    • YouTube

    Most of the world believed that Earth was the center of the universe for a really long time. Then a few scientists decided to take a closer look.

  • S2015E85 What's Up With the 'Alien Megastructure?'

    • October 22, 2015
    • YouTube

    The Kepler space telescope found a star that randomly gets really dim, and some people are suggesting the star’s being blocked by a huge alien structure. It’s… probably not aliens, though.

  • S2015E86 Understanding the Most Extreme Numbers in the Universe

    • October 27, 2015
    • YouTube

    Humans are great at understanding medium-sized things, like how far the supermarket is from your house, or how to find the bathroom in the dark. But imagining distances in light-years is a lot harder -- so you’ll have to use a trick or two.

  • S2015E87 Cosmic Cocktails: Oxygen and Alcohol in Space!

    • October 29, 2015
    • YouTube

    Scientists studying Comets 67P and Lovejoy have discovered oxygen, alcohol, and the building block of sugar. Sounds like a regular Friday night on earth, but it’s the first time we’ve found any of these things on a comet.

  • S2015E88 Using Sunlight to Propel Spaceships

    • November 3, 2015
    • YouTube

    When scientists are planning missions, they sometimes have to take into account the fact that the light from the Sun pushes on the spacecraft. But with solar sails, they can also use that pressure to propel the craft along.

  • S2015E89 How Carl Sagan Predicted Nuclear Winter

    • November 5, 2015
    • YouTube

    Carl Sagan predicted some amazing things including the aftermath of nuclear war.

  • S2015E90 Great Minds: Tycho Brahe, the Astronomer With a Pet Elk

    • November 10, 2015
    • YouTube

  • S2015E91 NASA Needs Astronauts!

    • November 12, 2015
    • YouTube

    Learn about what might be one of the most important exoplanets we've discovered yet, and what you need to apply to become an astronaut!

  • S2015E92 Why Shouldn't You Look at the Sun?

    • November 17, 2015
    • YouTube

    You might have done it accidentally or intentionally but one thing is clear: Don't stare at the the sun! Hank Green explains why.

  • S2015E93 A New Dwarf Planet?

    • November 19, 2015
    • YouTube

    Astronomer Jean-Luc Margot has come up with a new definition for planets that may help us categorize worlds outside of the solar system, and we may have also discovered a new dwarf planet within the solar system!

  • S2015E94 The Fastest Runaway Star in the Galaxy

    • November 24, 2015
    • YouTube

    Most stars orbit the center of the galaxy. Some stars don't. Learn what scientists think is going on, with Reid Reimers!

  • S2015E95 Will there be a ring in Mars's future?

    • November 26, 2015
    • YouTube

    Will Mars have a ring around it? Hank Green explains in this episode of Scishow Space News!

  • S2015E96 Triton: The Celestial 'Cantaloupe'

    • December 1, 2015
    • YouTube

    Join SciShow Space as we explore Neptune's largest moon, Triton. It's kind of a weird place and may even have liquid water!

  • S2015E97 Mission Cliffhanger On Venus

    • December 3, 2015
    • YouTube

    Akatsuki missed Venus once, but with a little ingenuity and its secondary engines, it's heading back on December 7th!

  • S2015E98 Take a Trip to Titan!

    • December 9, 2015
    • YouTube

    Get your gasmasks ready because we’re taking a trip to Titan! Reid Reimers tells us all about the mysterious moon.

  • S2015E99 Multicolored Meteor Shower!

    • December 10, 2015
    • YouTube

    Those bright spots on Ceres? We've got some new insight into what they might be! Also, the Geminids meteor shower is coming up and will peak on December 13-14.

  • S2015E100 The First Few Moments That Physics Can't Explain

    • December 15, 2015
    • YouTube

    Although science has provided astounding insights into the origins of the universe, we're still not quite sure what happened in those very first few moments.

  • S2015E101 Two New Planets Discovered?

    • December 17, 2015
    • YouTube

    Click here to find out more about “New Planets Found!” and “SUPER EARTH Orbiting Our Sun!”. Ignore the clickbait...Hank Green explains what might have been found in this episode of SciShow Space.

  • S2015E102 Diving Into the Sun!

    • December 22, 2015
    • YouTube

    We've talked about a lot of extreme environments in the solar system, but the sun just might be the MOST extreme! Join SciShow as we dive a little deeper into our friendly neighborhood star.

  • S2015E103 Is the Universe Expanding?

    • December 29, 2015
    • YouTube

    Is the universe expanding? About a hundred years ago astronomers made a discovery that helped us unravel the mystery of the history of the universe!

  • S2015E104 Space Superlatives of 2015!

    • December 31, 2015
    • YouTube

    Let's talk about some of the awesome stuff that happened in 2015! Caitlin Hofmeister tells us all about some pretty nifty black holes and the biggest rocket created by NASA.

Season 2016

Season 2017

  • S2017E01 Were the Planets Always in the Same Order?

    • January 3, 2017
    • YouTube

    Four rocky inner planets and four gaseous outer planets - makes sense, right? But when astronomers turned their eyes to planets beyond our star system they found out that many systems are set up differently. Why?

  • S2017E02 Future Space News of 2017

    • January 6, 2017
    • YouTube

    We bring you a few upcoming missions that will be testing technology for future asteroid prospecting, trying to find more exoplanets, and continuing China's quest for a crewed moon mission.

  • S2017E03 The Largest Electrical Current in the Universe

    • January 10, 2017
    • YouTube

    The information contained in this video may shock you!

  • S2017E04 Two New NASA Missions!

    • January 13, 2017
    • YouTube

    With two new missions set by NASA, we hope to learn so much more of the asteroids surrounding Jupiter's orbit and the origin of our moon!

  • S2017E05 The Solar Storm That Almost Started World War III

    • January 17, 2017
    • YouTube

    May 23rd, 1967 could have been the beginning of the end - all thanks to the sun.

  • S2017E06 The Giant Wave on Venus

    • January 20, 2017
    • YouTube

    What was that giant swoop on Venus? And SpaceX continues to move forward.

  • S2017E07 Why Is the Night Sky Dark?

    • January 24, 2017
    • YouTube

    If the universe is so vast and full of stars, why is the night sky dark?

  • S2017E08 The New Space Weather Mission

    • January 27, 2017
    • YouTube

    The universe gets a little weirder, and more dangerous, every time we study it. Understanding space weather, which can mess with our communications systems, will take strategic planning to monitor.

  • S2017E09 3 Galaxies That Shouldn't Exist

    • January 31, 2017
    • YouTube

    The universe is a big place full of galaxies that we've only begun to study. SciShow Space presents 3 of the strangest ones we've found so far.

  • S2017E10 Boeing's Sweet New Spacesuits

    • February 3, 2017
    • YouTube

    Boeing has developed a snazzy new spacesuit and a couple studies give us clues about the history of Earth and the moon!

  • S2017E11 How Do We Know What the Milky Way Looks Like?

    • February 7, 2017
    • YouTube

    How do we know what the Milky Way looks like if we've never been outside of it?

  • S2017E12 The Sun's So Bright, It's Spinning Slower

    • February 10, 2017
    • YouTube

    Scientists have known the outside of the sun spins slower than the inside for a while, but they didn't know why until recently.

  • S2017E13 How Cosmic Rays Make Astronauts See Stars

    • February 14, 2017
    • YouTube

    Some astronauts have reported the same specific symptoms: they see mysterious flashes of light out of the corner of their eyes. What causes those bizarre phenomena, and how does it affect astronauts?

  • S2017E14 Landing on Europa!

    • February 17, 2017
    • YouTube

    NASA has proposed a mission that would land on Europa to search for signs of life & we've learned something sad about one of our neighbors, Proxima b.

  • S2017E15 How (a Lack of) Bird Poop Proved the Big Bang

    • February 21, 2017
    • YouTube

    Reid describes how pigeons and bird poop helped prove the Big Bang!

  • S2017E16 More New Earth-like Planets Nearby!

    • February 24, 2017
    • YouTube

    Between the new, potentially Earth-like planets, organic molecules on Ceres, and SpaceX's successful launch, it's been quite a week in space!

  • S2017E17 The Strongest Magnetic Field in the Universe

    • February 28, 2017
    • YouTube

    Hint: It's not your collection of awesome refrigerator magnets!

  • S2017E18 Evidence for Tatooine!

    • March 3, 2017
    • YouTube

    But maybe don't bust out the moisture farm equipment just yet!

  • S2017E19 There's Going to Be a New Star in the Sky

    • March 7, 2017
    • YouTube

    The night sky is about to look a little different, but that's nothing new!

  • S2017E20 SpaceX Is Sending People to the Moon!

    • March 10, 2017
    • YouTube

    SpaceX is spearheading space travel for consumers and one day hopes to take people to the moon!

  • S2017E21 How Moon Rocks Revolutionized Astronomy

    • March 14, 2017
    • YouTube

    Getting our hands on a few moon rocks radically changed our understanding of the solar system!

  • S2017E22 Enceladus's Super-Thin Ice

    • March 17, 2017
    • YouTube

    You might not want to sign up for the Enceladus Ice Hockey League... And some researchers have an idea that might make the Big Bang model more accurate!

  • S2017E23 ALMA: What We've Learned from One of the Best Telescopes on Earth

    • March 21, 2017
    • YouTube

    Move over Hubble, ALMA sees what you can't!

  • S2017E24 Pluto: Still Not A Planet

    • March 24, 2017
    • YouTube

    The ESA is working on a 'fresh-squeezed' spacecraft that will explore Jupiter's moons, and the New Horizons team makes a case for Pluto (and many others)!

  • S2017E25 3 Stars That Shouldn't Exist

    • March 28, 2017
    • YouTube

    Based on what we think we know about the universe these stars really shouldn't exist, but they do!

  • S2017E26 A Runaway Supermassive Black Hole

    • March 31, 2017
    • YouTube

    Black holes are a wondrous force of the universe! Hank explains how we found a supermassive rogue black hole & how DNA behaves in space!

  • S2017E27 The Hunt for Water on the Moon

    • April 4, 2017
    • YouTube

    Crashing satellites into the moon can be fun AND educational!

  • S2017E28 SpaceX Reused a Rocket!

    • April 7, 2017
    • YouTube

    This week SpaceX accomplished a first in the history of spaceflight: They reused a rocket big enough to send things into orbit!

  • S2017E29 The Sun's Center Is 39,000 Years Younger Than Its Surface

    • April 11, 2017
    • YouTube

    In the early 1960s, Richard Feynman was quoted as saying that Earth's center should be a day or two younger than its surface. 50 years later, scientists re-did the math.

  • S2017E30 An Earth-Sized Telescope Just Snapped Two Pictures

    • April 14, 2017
    • YouTube

    We may soon have a direct image of a black hole, and we have the first detection of an atmosphere on an Earth-sized exoplanet!

  • S2017E31 Extreme Hypothetical Stars

    • April 18, 2017
    • YouTube

    You might think we’ve already found every kind of star by now, but astronomers think there are more that should hypothetically exist!

  • S2017E32 New Watery Discoveries on Enceladus and Europa!

    • April 21, 2017
    • YouTube

    These days, it seems like we’re finding water all over the solar system. Still, it takes a lot more than a little H2O to support life.

  • S2017E33 3 of the Strangest Moons in the Solar System

    • April 25, 2017
    • YouTube

    The solar system is full of strange things. But these three moons are especially strange, and kind of ... ugly.

  • S2017E34 China's Almost Ready to Build Their Space Station

    • April 28, 2017
    • YouTube

    The International Space Station might be getting a new neighbor because China has big plans for their future in space!!

  • S2017E35 Did a Planet Escape the Solar System?

    • May 2, 2017
    • YouTube

    Astronomers still aren't sure about how our solar system might have formed, but they have simulations to help them get closer to the answer!

  • S2017E36 Cassini's Dangerous Dives Through Saturn's Rings

    • May 5, 2017
    • YouTube

    The Cassini probe is getting more dangerous assignments as its mission nears its end, and the sun's surface may be simpler than we once thought.

  • S2017E37 Why Are There So Many Telescopes in Hawaii?

    • May 9, 2017
    • YouTube

    You might have realized that lots of ground-based telescopes are located in Hawaii...but why? It's not just for the beautiful sunsets.

  • S2017E38 3D Printing Moon Bricks for a Moon Base

    • May 12, 2017
    • YouTube

    ESA’s newest printer at the DLR German Aerospace Center in Cologne, is designing a way to print bricks for a moon base.

  • S2017E39 How Long Will the Curiosity Rover Last?

    • May 16, 2017
    • YouTube

    Curiosity's 23-month-long mission is already approaching the 5-year-mark! How much longer can we hope it will last?

  • S2017E40 Could Water Survive on the Closest Exoplanet?

    • May 19, 2017
    • YouTube

    Exoplanets are being discovered in the habitable zone to sustain life as we know it. Could water be found on the closest exoplanet to us?

  • S2017E41 15 Futuristic Space Mission Concepts in 5 Minutes

    • May 23, 2017
    • YouTube

    NASA's Innovative Advanced Concepts program has funded a slew of new space mission concepts! Which one is your favorite?

  • S2017E42 Why Everyone Was Watching Tabby's Star Last Weekend

    • May 26, 2017
    • YouTube

    Tabby's star is at it again. Could it be aliens this time!? Also, astronomers have discovered a planet with the density of styrofoam!

  • S2017E43 What We (Don't) Know About Dark Matter

    • May 30, 2017
    • YouTube

    Scientists are still working on theories that might help explain what the vast majority of our universe is made of.

  • S2017E44 New Jupiter Weirdness From Juno

    • June 2, 2017
    • YouTube

    Astronomers have announced the Juno space probe’s first findings from Jupiter!

  • S2017E45 How Studying Venus Saved Earth

    • June 6, 2017
    • YouTube

    Chlorofluorocarbons, or CFCs, seemed too good to be true when they were first created, and before long astronomers studying Venus' atmosphere discovered what could go wrong with this "miracle molecule."

  • S2017E46 The Hottest Planet Ever

    • June 9, 2017
    • YouTube

    NASA is launching a mission to send a probe into the sun, and it's the first to be named after a living scientist: Eugene Parker and the Parker Solar Probe! Astronomers have found another hot topic, and it's the hottest planet we've ever seen at 4300°C!

  • S2017E47 Mimas: The Real-Life Death Star

    • June 13, 2017
    • YouTube

    One of Saturn's moons looks a lot like an infamous planet-destroying battle station from science fiction, but astronomers have some very real theories about the complex crater that gives Mimas its unique feature.

  • S2017E48 Could Life Have Survived in Mars's Ancient Lake?

    • June 16, 2017
    • YouTube

    Samples from the Curiosity rover suggest that Mars had a potentially habitable lake in its past, and gravitational lensing has helped scientists weigh a star!

  • S2017E49 What Studying Earth Can Tell Us About Life on Mars

    • June 20, 2017
    • YouTube

    Scientists conduct some pretty cool research experiments for Mars here on Earth. These terrestrial analogues have revealed some incredible discoveries!

  • S2017E50 The Truth About the Sun's 'Twin' and the Dinosaurs

    • June 23, 2017
    • YouTube

    Researchers published a paper last month, exploring the possibility that our sun might have once had a stellar twin! Could our solar system have once been a binary, or even a multi-star system?

  • S2017E51 What We Learned from the Apollo 1 Fire

    • June 27, 2017
    • YouTube

    The Apollo 1 fire was a tragedy and a huge wake-up call for NASA, causing them to get much more serious about their safety procedures and technology, and also changed their attitude towards spaceflight in general.

  • S2017E52 What We've Learned from the Dawn Mission So Far

    • June 30, 2017
    • YouTube

    The Dawn spacecraft has been exploring the two largest objects in the asteroid belt since 2007, and here's what we've learned so far!

  • S2017E53 How Vera Rubin Found the First Direct Evidence for Dark Matter | Great Minds

    • July 4, 2017
    • YouTube

    Vera Rubin graphed the rotation curves of galaxies, helping astronomers better understand the accelerated orbits of stars on the outskirts of galaxies. Her life's work generated some of the first solid evidence for dark matter in the universe.

  • S2017E54 The Mysterious Origins of Our Galaxy's Fastest Stars

    • July 7, 2017
    • YouTube

    A new paper that borrows old astrological data from the Voyager 2 probe has used brand-new computer simulations to find some new weird data about Uranus’s magnetic field. Another paper has new information about our galaxy’s fastest stars, called hypervelocity stars.

  • S2017E55 Do Any Stars NOT Have Planets?

    • July 11, 2017
    • YouTube

    Astronomers have used a few different methods to detect exoplanets, and improved telescopes are increasing the rate of discovery. But is it possible that any stars DON'T have planets, or are they just an expected feature of stellar formation?

  • S2017E56 The Coolest Things We Didn't Know About Pluto Two Years Ago

    • July 14, 2017
    • YouTube

    On July 14, 2015, New Horizons flew by Pluto. Scientists have used the data from the mission so far to uncover active geology, an enormous canyon, a unique case of chemical coloration, and more. What else might we discover as we venture deeper into the Kuiper Belt?

  • S2017E57 Why Getting Sick in Space Is the Worst

    • July 18, 2017
    • YouTube

    We've talked about some of the ways microgravity can negatively affect humans, but for bacteria, being in space might be quite beneficial!

  • S2017E58 The 2017 Solar Eclipse: What You Need to Know

    • July 21, 2017
    • YouTube

    On August 21, 2017, the United States will experience its first total solar eclipse since 1979! If you're in the right place at the right time, you're in for a spectacular show!

  • S2017E59 The Mystery of Fast Radio Bursts

    • July 25, 2017
    • YouTube

    FRBs last just a few milliseconds, and astronomers have detected less than a couple dozen of them without our current telescopes. Where do scientists think they come from?

  • S2017E60 'Weird! Signal' Mystery Solved!

    • July 28, 2017
    • YouTube

    Where did astronomers finally conclude that the 'Weird! Signal' was coming from? What has Elon Musk been up to with SpaceX and the Falcon Heavy rocket?

  • S2017E61 Our First-Ever Missions to Mars, and What We Learned From Them

    • July 31, 2017
    • YouTube

    A lot of our knowledge of the inner solar system was gained fairly recently, and the Mariner program led the way!

  • S2017E62 Our Alarmingly Close Shave with an Asteroid

    • August 4, 2017
    • YouTube

    How often do we miss asteroids like 2017 OO1, and what are astronomers doing to limit their impact? Meanwhile, distant icy worlds might not look as promising in our search for extraterrestrial life as scientists once thought.

  • S2017E63 3 Mars Mysteries We Really Should Have Solved By Now

    • August 8, 2017
    • YouTube

    We’ve learned a lot about Mars over the years, but we keep uncovering new mysteries — important, fundamental aspects of The Red Planet that we just can’t explain. Here are three of them.

  • S2017E64 NASA's Planetary Protection Job, and a Brand New Way to Study Neutrinos

    • August 11, 2017
    • YouTube

    The Planetary Protection Office is hiring and we’ve found a much easier way to study neutrinos.

  • S2017E65 That Time Apollo 16 Astronauts Got the Farts

    • August 15, 2017
    • YouTube

    Even with scientifically controlled diets, astronauts can't yet safely prevent gas in space. What gives them gas, and why are they still eating it?

  • S2017E66 A Better Way to Study Earth, and Lessons from Jellyfish Galaxies

    • August 18, 2017
    • YouTube

    A new detector can use neutrinos to help us take a peek inside Earth, and a study of jellyfish galaxies can help us understand more about an unsolved problem in astronomy.

  • S2017E67 The Hot Mess That Was the Mir Space Station

    • August 22, 2017
    • YouTube

    Mir taught us a lot, but most days, it was also a mess of mold and electrical problems... even when it wasn’t literally on fire.

  • S2017E68 Snowstorms on Mars!

    • August 25, 2017
    • YouTube

    New research looks into how snow falls on Mars, and scientists have been looking into other things falling from the sky onto planets: diamonds!

  • S2017E69 The Future of Interstellar Communication

    • August 29, 2017
    • YouTube

    How will we communicate with the ships that we send to other stars? Scientists think the answer might involve using the sun as a giant lens to strengthen the signal.

  • S2017E70 Would Aliens Be Able to See Earth?

    • September 1, 2017
    • YouTube

    Scientists have worked out how likely it is that distant planets can see earth, and we are learning new ways to study the magnetic fields of galaxies.

  • S2017E71 Why Is the Sun's Corona So Hot?

    • September 5, 2017
    • YouTube

    The Sun's corona is hotter than its surface, but where do scientists think such immense heat comes from?

  • S2017E72 Cassini's Last Hurrah & Hints About Saturn's Rings

    • September 8, 2017
    • YouTube

    Cassini is about to take its final dive into the rings of Saturn, and scientists are still debating the status of water on our moon.

  • S2017E73 The Curiosity Rover's Most Amazing Discoveries

    • September 12, 2017
    • YouTube

    It might feel like it was only yesterday that the Curiosity rover touched down on Mars, but in August, the rover celebrated its fifth birthday! For a kindergartener, it’s made some really impressive discoveries.

  • S2017E74 The Strongest Solar Flare in Over a Decade

    • September 15, 2017
    • YouTube

    Peggy Whitson is back from the International Space Station after breaking a list of records, and a major solar storm delivered the biggest solar flare we've seen in over a decade.

  • S2017E75 That Time We Gave Earth a Ring Made of Millions of Tiny Needles

    • September 19, 2017
    • YouTube

    In the 1960s, the USA almost put a ring around the Earth by launching hundreds of millions of tiny copper needles into space in an attempt to create a reliable boost for their communications systems.

  • S2017E76 The Fiery, Pitch-Black Egg-Planet

    • September 22, 2017
    • YouTube

    Last week, the Cassini probe dove into Saturn, never to be heard from again, but thankfully, Cassini wasn’t the only probe out there. And we’ve also found an exoplanet that might be even darker and stranger than we thought.

  • S2017E77 Why Does the Earth's Magnetic Field Keep Flipping?

    • September 26, 2017
    • YouTube

    The geographic north pole doesn't always line up with the magnetic north pole, but what do scientists know about this flipping field?

  • S2017E78 A New Binary Asteroid (That's Also a Comet!)

    • September 29, 2017
    • YouTube

    Astronomers discovered something cool about an object in the asteroid belt (2006 VW139/288P), and the European Space Agency is conducting a bed rest study that could help us get on our way to Mars.

  • S2017E79 How We Used the Moon to Send Radio Messages

    • October 3, 2017
    • YouTube

    In the early days of the Cold War, it was difficult to send and receive messages across the globe. Before the US launched its first satellite in January 1958, the military tried a creative solution: bouncing radio waves off the Moon.

  • S2017E80 Mars Cities and Moon Bases: SpaceX's Big New Plans

    • October 6, 2017
    • YouTube

    SpaceX CEO Elon Musk announced some ambitious plans at the International Aeronautical Congress. If he's right, we could have humans living on the moon and Mars within a decade, and you might never have an 18 hour flight again!

  • S2017E81 What Movies Get Wrong About Space

    • October 10, 2017
    • YouTube

    Hollywood can be pretty negligent about physics and astronomy, even in really good movies, but there are a few specific misconceptions that pop up again and again. Movies mentioned (and potentially spoiled) in this video: Armageddon, Star Trek (2009), Total Recall (1990), 2001: A Space Odyssey (1968)

  • S2017E82 A New Idea About Tabby's Star!

    • October 13, 2017
    • YouTube

    Astronomers might have finally discovered part of why Tabby's Star acts so strangely and we have some new ideas about what triggers a type Ia supernova.

  • S2017E83 The Space Mirror That Turned Night into Day

    • October 17, 2017
    • YouTube

    Solar sail technology was once only theoretical, but it's now being developed to propel spaceships. How did the first solar sails get into space, and why?

  • S2017E84 The First Neutron Star Collision We've Ever Seen

    • October 20, 2017
    • YouTube

    The results are in from the neutron star collision this past August! Astronomers are revealing what they’ve learned so far, with more pure gold research underway!

  • S2017E85 NASA Might Send a Helicopter to Mars

    • October 24, 2017
    • YouTube

    Nothing’s final yet, but there might be a drone, called the Mars Helicopter, on the upcoming Mars 2020 rover.

  • S2017E86 Two New Ways We Could Live on the Moon!

    • October 27, 2017
    • YouTube

    Last week, engineers announced two possible lunar habitats: a big pillowy space closet and lunar lava tubes.

  • S2017E87 Could Wormholes Really Exist?

    • October 31, 2017
    • YouTube

    If wormholes aren't just convenient plot devices for science fiction writers, they’re still much weirder than anything we could make up.

  • S2017E88 An Asteroid Visited Us From Outside the Solar System!

    • November 3, 2017
    • YouTube

    Earth has received its first speedy visitor from another star system, A/2017 U1, and the Dawn Mission has helped astronomers gather more evidence about possible former oceans on Ceres.

  • S2017E89 What if Earth Was Hit by a Giant Solar Flare?

    • November 7, 2017
    • YouTube

    Solar storms are really common, but occasionally they can be huge, causing more than pretty light shows in the auroras. What would happen nowadays if we had a massive solar storm?

  • S2017E90 We Found One of the Oldest Galaxies Ever!

    • November 10, 2017
    • YouTube

    Astronomers found a galaxy older than almost any we’ve ever seen before, and we have a new, faster method to use in our search for habitable planets.

  • S2017E91 The Coolest Missions from India's Space Program

    • November 14, 2017
    • YouTube

    The Indian Space Research Organisation, or ISRO, is on its way to becoming a leader in space exploration - and they’re just getting started.

  • S2017E92 A Zombie Star That Just Won't Die

    • November 17, 2017
    • YouTube

    What exactly is a ‘Zombie Star,’ and how does it compare to other stars and supernovas? We’ve also learned more about how the haze over Pluto plays a role in its temperature.

  • S2017E93 Could We Build Weather-Controlling Satellites?

    • November 21, 2017
    • YouTube

    In some science fiction movies, satellites control the weather in disastrous, but effective ways. Here in reality, we have attempted to influence the weather, with mixed results.

  • S2017E94 Maybe There Isn't Liquid Water on Mars

    • November 24, 2017
    • YouTube

    Two years ago we were very excited about the announcement of water on Mars, but some new research challenges that idea. And one of our most successful exoplanet finding tools has discovered another one, this time pretty close to home!

  • S2017E95 The VASIMR Engine: How to Get to Mars in 40 Days

    • November 28, 2017
    • YouTube

    Chemical engines can only move us through the solar system so quickly, but a faster method is being engineered right now that could get us to Mars in just 40 days!

  • S2017E96 The First Results on the Interstellar Asteroid!

    • December 1, 2017
    • YouTube

    Our asteroid news edition this week clears up some misleading headlines regarding 3200 Phaethon, and our interstellar visitor has both a new name and a shape we haven’t seen before.

  • S2017E97 How Computers Revolutionized Space Travel

    • December 5, 2017
    • YouTube

    As computers have gotten more powerful, they’ve completely transformed how we explore the solar system. And along the way, the space industry has given computer science a boost too.

  • S2017E98 The Oldest Quasar Ever and the Newest Failed Launch

    • December 8, 2017
    • YouTube

    We have discovered an enormous black hole that’s older and farther away than any we’ve ever seen, and a recent rocket launch did not go as planned.

  • S2017E99 Life Beyond Neptune: The Kuiper Belt & Scattered Disc

    • December 12, 2017
    • YouTube

    The solar system is enormous, and includes the Kuiper Belt and the Scattered Disc, both of which turn out to be really weird in some pretty awesome ways.

  • S2017E100 A Ridiculously Huge Pair of Ancient Galaxies

    • December 15, 2017
    • YouTube

    Astronomers have found a couple galaxies that were much larger than expected, and the Opportunity rover might be in for some harsh Martian weather!

  • S2017E101 The Hardest Things About Living on Mars

    • December 19, 2017
    • YouTube

    Creating a Mars colony is a dream for many people, but it comes with some unique and challenging problems.

  • S2017E102 We Found Two Planets Using Artificial Intelligence!

    • December 22, 2017
    • YouTube

    Artificial Intelligence has helped astronomers discover 2 new planets in systems that we'd already looked at, and new theories about how Mars lost some of its water have surfaced.

  • S2017E103 The UAE's Martian City on Earth

    • December 26, 2017
    • YouTube

    The United Arab Emirates is planning an enormous colony on Mars, but first they are building the biggest Mars simulator right here on earth.

  • S2017E104 Future Space News of 2018

    • December 29, 2017
    • YouTube

    Here's a sneak peek at three missions coming up in 2018. We have rockets launching, spacecraft arriving at their destinations, and missions coming to an end.

Season 2018

Season 2019

  • S2019E01 3 of the Most Peculiar Supernovas

    • January 1, 2019
    • YouTube

    Massive stars die in fantastic explosions called supernovas. Most of them fit neatly into a few categories, but then there are the peculiars, a special group of supernovas that don’t quite fit in with the rest.

  • S2019E02 Future Space News of 2019

    • January 4, 2019
    • YouTube

    2019 will be a big year for the moon! Not only is it the 50th anniversary of the first moon landing, but our closest neighbor is receiving a bunch of new visitors this year.

  • S2019E03 Are There Planets More Habitable Than Earth?

    • January 8, 2019
    • YouTube

    Earth probably isn’t the best place in the universe. It turns out there might be even better places to live that are even more suitable for life: superhabitable planets.

  • S2019E04 We Just Landed on the Far Side of the Moon for the First Time!

    • January 11, 2019
    • YouTube

    The new year is off to a great start for space exploration! New Horizons has passed the farthest object ever visited by a spacecraft, and China put a lander on the dark side of the Moon!

  • S2019E05 Why Does It Take So Long to Get to Mercury?

    • January 15, 2019
    • YouTube

    On a cosmic scale, Mercury isn’t very far away, but it's incredibly hard to get there. Getting into orbit around it takes years of flybys in the solar system, but we're going to do it again!

  • S2019E06 Our First Glimpse of a Newborn Supernova?

    • January 18, 2019
    • YouTube

    A super bright flash in the sky might be the birth of a supernova remnant and it turns out there's more than one way to build a binary star system.

  • S2019E07 Our Startling First Glimpse of the Far Side of the Moon

    • January 22, 2019
    • YouTube

    Since the moon is tidally locked to the Earth, for millennia we could only guess what mysteries lay on its "dark side." Then in 1959 the Luna 3 spacecraft sent back a photo that prompted more questions than it answered.

  • S2019E08 Giant Stars Don't Follow the Rules

    • January 25, 2019
    • YouTube

    Astronomers are learning just how big early stars might have been, and how their deaths have shaped the universe. Some may have even been so massive that they skipped the whole star phase and collapsed straight into black holes!

  • S2019E09 The Impossible Element Hiding in the Sun

    • January 29, 2019
    • YouTube

    Not all of the naturally occurring elements were discovered here on Earth. Helium was discovered by examining sunlight, and that same technique is now teaching us about the composition of distant galaxies.

  • S2019E10 The Moon's Birth May Have Given Earth Ingredients for Life

    • February 1, 2019
    • YouTube

    The event that gave us our moon may have also given us the elements necessary for life and scientists might have found a very tiny piece of our solar system's past way out in space.

  • S2019E11 The Giant, Amazing Machines NASA Built for the Shuttle

    • February 5, 2019
    • YouTube

    For decades the space shuttle was integral to space exploration. In orbit it helped build the ISS, but on the ground it needed help from other gigantic machines.

  • S2019E12 Dark Energy Could Rip the Universe Apart

    • February 8, 2019
    • YouTube

    There are a few ideas about how the universe will end, but a paper published last week suggests that dark energy might eventually rip everything apart!

  • S2019E13 The Universe Is Expanding... But Not Everywhere

    • February 12, 2019
    • YouTube

    The Universe is expanding which means distant galaxies are only moving farther away from us. So in the farthest future, will our night sky be empty?

  • S2019E14 MU69 is Flat, and No One Knows Why

    • February 15, 2019
    • YouTube

    MU69 seems to be much flatter than we thought and the Gaia space telescope can tell us where galaxies have been and, maybe, where they're going.

  • S2019E15 Has Saturn Had More than One Ring System?

    • February 19, 2019
    • YouTube

    Saturn’s rings might only be around a hundred million years old, billions of years younger than some astronomers have suspected, and they might not be the only rings the planet has ever had.

  • S2019E16 Could We Have Saved the Opportunity Rover?

    • February 22, 2019
    • YouTube

    For more than a decade, Opportunity has been one of our best tools for understanding Mars, but after eight months of listening and hoping, it was officially time to put the rover to bed.

  • S2019E17 Life on an Eyeball Planet? It's Possible

    • February 26, 2019
    • YouTube

    Tidally locked planets could be more common than Earth-like planets! And these "eyeball planets" might even be a promising place to look for unique lifeforms!

  • S2019E18 We Just Shot an Asteroid... for Science!

    • March 1, 2019
    • YouTube

    The Hayabusa2 spacecraft fired a bullet into an asteroid and Neptune officially has 14 moons!

  • S2019E19 How to Catch a Supernova Rerun

    • March 5, 2019
    • YouTube

    On earth a sound echo lets you hear something again. Over great distances, a light echo can let you see something again, specifically an exploding star.

  • S2019E20 We May Have Found Mars's Ancient, Underground Lakes

    • March 8, 2019
    • YouTube

    Researchers think a planet-wide groundwater system may have once existed on Mars, and SpaceX launched the very first commercial crew capsule which docked on the International Space Station!

  • S2019E21 3 Solar Systems Scientists Still Don't Understand

    • March 12, 2019
    • YouTube

    From gigantic planets too close to their stars, to those in unfathomably wide orbits, astronomers have discovered seemingly impossible solar systems that shouldn’t exist at all. But they do.

  • S2019E22 Israel Is Getting Ready for Their First Moon Landing!

    • March 15, 2019
    • YouTube

    The Beresheet lander is on its way to the moon and Jupiter's magnetic field might be affecting Europa's ocean.

  • S2019E23 Could We Actually Detect Life on Other Planets?

    • March 19, 2019
    • YouTube

    There’s probably life somewhere besides Earth, but all the exoplanets are so far away we may never see their surfaces in detail or intercept a clear radio signal from them. How do we determine if a distant planet has life?

  • S2019E24 New Surprises from the Asteroid Bennu

    • March 22, 2019
    • YouTube

    There’s nothing boring about Bennu! From its chemistry, size, shape, and spin to its extremely old age, it proves that even the smallest objects in the solar system have a bizarre and fascinating history.

  • S2019E25 The Most Stable Neighborhoods in the Universe

    • March 26, 2019
    • YouTube

    No planet’s trip around a star is exactly like the one before it, because solar systems aren't as static as they first appear. Even small nudges can add up to disaster, but some objects find safe orbits with the help of a partner or two.

  • S2019E26 Spotted: One of the Fastest Pulsars Ever Seen

    • March 29, 2019
    • YouTube

    Astronomers have found a new celestial object, and it's moving really, really fast!

  • S2019E27 Why Our Solar System Is Weirder Than You'd Think

    • April 2, 2019
    • YouTube

    Research suggests that nearly every star has at least one planet, but we haven't found any other solar systems that look quite like ours.

  • S2019E28 Updates on the Hunt for Dark Matter

    • April 5, 2019
    • YouTube

    The hunt for dark matter is still on, and the candidates for it could be primordial black holes as massive as Earth, or axions, as tiny as the smallest subatomic particles in existence!

  • S2019E29 How We Could Study the First Nanoseconds of the Universe

    • April 9, 2019
    • YouTube

    The oldest light we can see comes from when the universe was less than 400,000 years old, so how can we study those first few moments of history?

  • S2019E30 The Most Metal Planet Fragment Ever

    • April 12, 2019
    • YouTube

    Scientists have discovered a shard of a planet that survived the death of its star and TESS has found the first direct evidence of an exocomet.

  • S2019E31 Why Astronomy Hasn't Really Changed Since the 1900s

    • April 16, 2019
    • YouTube

    The way modern researchers study the sky hasn’t really changed in the last few centuries. For the most part, astronomers still study things by analyzing their light.

  • S2019E32 How to Take a Picture of a Black Hole

    • April 19, 2019
    • YouTube

    For the first time ever we have visual confirmation that black holes actually exist and we got it with a telescope the size of our planet.

  • S2019E33 Maybe Life Doesn't Need Water, After All

    • April 23, 2019
    • YouTube

    Scientists have been searching for alien life by honing in on the existence of liquid water, but we might be overlooking some types of life out there that doesn't need water at all.

  • S2019E34 How Scientists Found the First Type of Molecule in the Universe

    • April 26, 2019
    • YouTube

    Around a quarter of a million years after the Big Bang, the very first molecule, helium hydride was formed. Now scientists have confirmed that molecule is still being made, and they found it with some help from a high flying airplane.

  • S2019E35 3 Amazing Objects to Check Out with Your New Telescope

    • April 30, 2019
    • YouTube

    When astronomers study the universe, they’re often using telescopes that cost millions or even billions of dollars to build. Luckily for the rest of us, there are still plenty of incredible things to see in the sky with the more affordable models.

  • S2019E36 Why Physics Can't Totally Explain the Universe's Expansion

    • May 3, 2019
    • YouTube

    Astronomers have gotten pretty good at calculating how fast the universe is expanding, but new measurements don’t line up with the predictions of well-tested laws of physics. Now scientists have a new question to ponder: Why are these numbers so different?

  • S2019E37 The Coolest Space Mission You May Have Never Heard Of

    • May 7, 2019
    • YouTube

    Some space missions get a lot of attention, but not all the biggest space exploration stories get the recognition they deserve. This is the story of a robotic craft that captured the first-ever glimpse of a comet’s icy core!

  • S2019E38 The Imaginary Future Asteroid That Hit NYC

    • May 10, 2019
    • YouTube

    Last week, an asteroid impact drill was conducted, which demonstrated what might happen if an asteroid hit us within the decade. It didn't go quite as well as we would like.

  • S2019E39 How Long Can Humans Outrun Extinction?

    • May 14, 2019
    • YouTube

    In a few million years, we’re going to have to leave Earth if we want to survive. But how long can we actually outrun extinction before the universe becomes uninhabitable to us?

  • S2019E40 Meet Blue Moon: Blue Origin's Lunar Lander

    • May 17, 2019
    • YouTube

    Blue Origin announced a a new lunar lander, Blue Moon, that will be delivering supplies, and eventually astronauts to the lunar surface within the next 5 years, and robots like Chang’e-4 are giving us an early glimpse at what we might find there!

  • S2019E41 3 Myths About Astronaut Food

    • May 21, 2019
    • YouTube

    Scientists have come up with some really creative ways to keep astronauts well fed in space for days and months at a time. But you should take some stories about space food with a grain of salt.

  • S2019E42 Pluto Might Have a Liquid Water Ocean?!

    • May 24, 2019
    • YouTube

    Pluto might seem like the least likely place to find liquid water, but thanks to New Horizons, we have new information about oceans on the dwarf planet and more from the outer reaches of the solar system!

  • S2019E43 5 Spacecraft That Got a New Lease on Life

    • May 28, 2019
    • YouTube

    When something breaks on a spaceship, there's not an auto-shop it can pull up to, so NASA scientists have to get creative.

  • S2019E44 How Origami Could Change Rocket Designs

    • May 31, 2019
    • YouTube

    Origami is helping to ease our journeys back from space, and astronomers are learning more about coronal mass ejections from a distant star!

  • S2019E45 Space Exploration Isn’t Great for the Earth (But It Could Be)

    • June 4, 2019
    • YouTube

    Building and launching rockets to learn about other worlds hasn't been great for Earth, but environmental engineers are working on changing that legacy.

  • S2019E46 They're Calling It "The Forbidden Planet"

    • June 7, 2019
    • YouTube

    We’ve discovered a planet that, for its size, is in a very strange place around it’s star! And other scientists, inspired by comets, have come up with a new way to potentially make breathable oxygen for people exploring Mars in the future.

  • S2019E47 3 Ways the Milky Way Will Change During Your Lifetime

    • June 11, 2019
    • YouTube

    It’s easy to imagine that our galaxy is basically frozen in time from the perspective of a human lifespan, but in fact, the Milky Way is incredibly dynamic and will undergo some pretty amazing changes in only a few decades!

  • S2019E48 That Galaxy With No Dark Matter? It's Probably Not Real

    • June 14, 2019
    • YouTube

    A little over a year ago, we covered a mind-blowing discovery on SciShow Space News. Some researchers even suggested that, if this was confirmed, it would be one of the biggest astronomy findings in years. Except, as it turns out… that discovery was probably wrong.

  • S2019E49 Why We're Building Underground Telescopes

    • June 18, 2019
    • YouTube

    Obviously most telescopes need to see the sky to do their job, but when you are studying a wave that can pass right through the earth, the best place for your telescope might be underground.

  • S2019E50 NASA Wants to Capture Asteroids…in Bags (And Other New Tech)

    • June 21, 2019
    • YouTube

    NIAC has awarded their first two grant winners for phase III: optical mining and 3D modeling craters, and researchers are further honing in on how to identify faraway habitable planets.

  • S2019E51 How Tech Designed for Space Is Saving Lives on Earth

    • June 25, 2019
    • YouTube

    Space technology gets applied in all sorts of ways down here on Earth, making us more comfortable, healthier, and even saving lives!

  • S2019E52 Say Hello to NASA's Newest Sun Missions

    • June 28, 2019
    • YouTube

    Our star continuously throws out streams of charged particles at more than 500 kilometers per second, something we call Solar Wind. And just like regular weather can be unpredictable and dangerous, space weather can be, too. Meanwhile, on the other side of the solar system, researchers have also been investigating a certain planet’s rings, and it's probably not the planet you're thinking of.

  • S2019E53 This Tank of Water Could Change Physics Forever

    • July 2, 2019
    • YouTube

    No one has ever conclusively seen a proton turn into other, lighter particles, but fifty million liters of water in Japan might change that and our ideas about subatomic particles forever.

  • S2019E54 We're Sending a Drone to Saturn's Moon Titan!

    • July 5, 2019
    • YouTube

    NASA is sending a robot to Saturn’s giant moon Titan and instead of landing, orbiting, or driving when it gets there, this mission will fly.

  • S2019E55 How We Discovered the Milky Way's Black Hole

    • July 9, 2019
    • YouTube

    The search began with a physicist checking for sources of static on phone calls in the 1930s, but it took several decades to finally make one of the biggest discoveries in astronomy, Sagittarius A*.

  • S2019E56 Meet the Sea Dragon: The Biggest Rocket Ever Designed

    • July 12, 2019
    • YouTube

    The 1960s were an optimistic time for space exploration - so much so that a team designed a rocket called the Sea Dragon that was big enough to launch an entire space station from the sea in one go!

  • S2019E57 This Image Might Show Exomoons Forming!

    • July 19, 2019
    • YouTube

    Scientists have conclusively imaged a circumplanetary disk around a distant exoplanet, and Jupiter's auroras claim the spotlight with their unique Birkeland currents.

  • S2019E58 The Biggest Moon Discoveries of the Last Decade

    • July 23, 2019
    • YouTube

    NASA’s Lunar Reconnaissance Orbiter has been teaching us about the moon for a decade now, and it's still going! What we’re learning from it will make space exploration and future moon missions much easier for future astronauts.

  • S2019E59 The Secrets to Living on Mars: Wine and Aerogel?

    • July 26, 2019
    • YouTube

    One day we might be able to live on Mars thanks to red wine, and domes made out of a very strange material, but don't pack your suitcase just yet.

  • S2019E60 How Cosmic Rays and Balloons Started Particle Physics

    • July 30, 2019
    • YouTube

    Today, cosmic rays are used to understand things like supernovas, but in the early 1900s, they helped us discover brand-new subatomic particles long before the first accelerators.

  • S2019E61 Three New Exoplanets Close to Home

    • August 2, 2019
    • YouTube

    TESS found 3 new exoplanets around a strangely calm m-dwarf star, and it's possible they could be habitable!

  • S2019E62 3 Bizarre Projects That Could Transform Exploration | NIAC 2019

    • August 6, 2019
    • YouTube

    Every amazing mission you know about today started off as just an idea, and some of 2019’s early phase NIAC concepts could mean big things for our future.

  • S2019E63 This Hot Jupiter Is Leaking Metal!

    • August 9, 2019
    • YouTube

    Astronomers have found a Hot Jupiter - WASP-121b - that is leaking metal, and put together a new 3D map of the Milky Way showing that our galaxy is actually a bit twisted!

  • S2019E64 Cruithne, the Asteroid With a Horseshoe Orbit

    • August 13, 2019
    • YouTube

    There’s a small asteroid that appears to orbit Earth in a horseshoe shape. Sometimes referred to as Earth’s second moon, but it's orbit is much weirder than that.

  • S2019E65 Dark Matter May Have Come Before the Big Bang?!

    • August 16, 2019
    • YouTube

    A new study provides mathematical evidence that dark matter could be much older than we thought and we've found a weird glitch in a neutron star.

  • S2019E66 This Reaction Could Let Us Live on Mars

    • August 20, 2019
    • YouTube

    There is a chemical reaction discovered a century ago that could be the key to creating everything from fuel to shelter on Mars!

  • S2019E67 A Baby Planet May Have Once Smashed Into Jupiter

    • August 23, 2019
    • YouTube

    Shortly after Jupiter formed, it might have been struck by an object that may have otherwise become its own planet! And researchers have a new estimate of how many Earth-like planets might exist.

  • S2019E68 The Electric Thruster That Could Send Humans to Mars

    • August 27, 2019
    • YouTube

    To get humans on Mars we're going to need some innovative tech that can move lots of things at high speed. Luckily, we might already have something that can do the job.

  • S2019E69 Neutron Star, Meet Black Hole

    • August 30, 2019
    • YouTube

    Scientists have observed a collision of two of the universe's most extreme objects. And a mission to Jupiter's moon Europa makes an important step forward.

  • S2019E70 Why Solar Eclipses Create Those Crescent-Shaped Lights

    • September 3, 2019
    • YouTube

    Everyone is watching the sky during a solar eclipse, but but if you look down, you'll catch another kind of light show.

  • S2019E71 The James Webb Space Telescope Is Assembled! Finally!

    • September 6, 2019
    • YouTube

    We have some good news this week for all the James Webb fans out there, as well as a look a some creative chemistry that may help us find the first solid evidence of an exomoon!

  • S2019E72 Why Venus Is THE WORST

    • September 10, 2019
    • YouTube

    Venus was once thought to have been very earth-like and pleasant, but now it's considered a harsh wasteland that we wouldn't even send a robot to.

  • S2019E73 What Happened to India's Moon Lander?

    • September 13, 2019
    • YouTube

    This week, scientists try to figure out what went wrong with India's moon lander, and what went right with a newly discovered, naturally occurring mineral.

  • S2019E74 3 Weird Meteorites (Whose Weirdness Was Instructive)

    • September 17, 2019
    • YouTube

    Meteorites are extraterrestrial rocks that have ended up on earth. All of them are literally 'out of this world,' but here are three of the strangest of these aliens.

  • S2019E75 We Found Water on a Habitable Zone Exoplanet

    • September 20, 2019
    • YouTube

    Researchers found water in the atmosphere of an exoplanet about 110 light-years away, and there's another rock from interstellar space flying through our solar system!

  • S2019E76 How Wiretapping Helped Transform Astronomy

    • September 24, 2019
    • YouTube

    Early telegraph operators and WWI spies picked up some weird noises on radio waves. As it turned out, they were actually listening to plasma waves in Earth’s magnetic field lines!

  • S2019E77 Did This Ancient Asteroid Cause an Ice Age?

    • September 27, 2019
    • YouTube

    Around 500 Million years ago, Earth’s climate was warm, and the planet had nearly no ice, even at the poles. Then an asteroid broke apart deep in our solar system, and our planet plunged into an ice age at the same time. Are the two events related? Also, will future Mars residents farm bugs for food?

  • S2019E78 The Future of CubeSat Propulsion

    • October 1, 2019
    • YouTube

    CubeSats have a lot of advantages, but they need a way to move and still stay small, and that means new miniaturized propulsion systems that can help us get these tiny spacecraft out into the universe.

  • S2019E79 Planet 9 Could Be a Black Hole?!

    • October 4, 2019
    • YouTube

    Two scientists have proposed that Planet Nine could actually be a black hole, and a handful of telescopes observed a distant black hole absolutely destroying a star!

  • S2019E80 3 Ridiculously Extreme Black Holes

    • October 8, 2019
    • YouTube

    Black holes are some of the most extreme astronomical objects out there, but there are some that really standout. Let's look at black holes that grow larger, consume more, and spin faster than the rest.

  • S2019E81 The Milky Way's Black Hole Burped 3.5 Million Years Ago

    • October 11, 2019
    • YouTube

    The black hole at the center of the Milky Way is quiet now, but new evidence suggests that it woke up around 3.5 million years ago. And Enceladus may have the the building blocks of the building blocks of life.

  • S2019E82 Brown Dwarfs: Space's Strangely Important Oddballs

    • October 15, 2019
    • YouTube

    You’d think it would be easy to tell if an object in space was a star or a planet - is it big, hot, and shining? It’s a star! Small, cool, and made of rock and gas? Planet! But cosmic oddities know as brown dwarfs remind us that the universe is more complicated and interesting than that.

  • S2019E83 Using Galaxy Clusters to Look Into the Past

    • October 18, 2019
    • YouTube

    Gravitational lensing has given us a look at a galaxy in the very, very distant cosmic past using x-ray light, and NASA finally got its ICON mission off the ground!

  • S2019E84 What's Stopping the James Webb Space Telescope?

    • October 22, 2019
    • YouTube

    The James Webb Space Telescope is the most complex telescope we’ve ever sent into space. But, Webb is not, in fact, in space… yet.

  • S2019E85 The Surprising Secrets of Destroyed Exoplanets

    • October 25, 2019
    • YouTube

    Scientists are learning new things by looking at the remains of exoplanets, NASA has unveiled a new spacesuit design, and engineers fixed a problem from one hundred million kilometers away.

  • S2019E86 This Amazing Mission Almost Failed After Launch

    • October 29, 2019
    • YouTube

    The ESA Hipparcos team worked for 20 years on the project, then had to watch as the mission ALMOST failed! But somehow, they turned it around, and today, this little-known mission has totally transformed what we know about space.

  • S2019E87 The Solar System Might Have a New Dwarf Planet!

    • November 1, 2019
    • YouTube

    After observing what we thought was just a big asteroid in the asteroid belt, a team of astronomers now thinks this might qualify as a dwarf planet. And scientists had the chance to directly observe the collision of two neutron stars for the first time.

  • S2019E88 What to Do With All This Space Poo

    • November 5, 2019
    • YouTube

    There are so many things we can do with poo! Waste is the enemy in matters of space exploration, but there are plenty of ways to use that waste to help make a mission successful.

  • S2019E89 Voyager 2’s Notes from Interstellar Space

    • November 8, 2019
    • YouTube

    Voyager 2 is the second object to leave our solar system, which means we now have twice as much information about its edges! And scientists have found a record-breaking black hole.

  • S2019E90 Other Worlds on Earth: Preparing for Space from Home

    • November 12, 2019
    • YouTube

    Other worlds don't seem very welcoming to us Earthlings, and it can be hard to practice our off-world explorations from millions of kilometers away. But Earth also has its fair share of hostile places that we can use to prepare for those unfriendly environments.

  • S2019E91 We've Never Seen a Pulsar Explode Like This

    • November 15, 2019
    • YouTube

    Spacebit is sending crawling, jumping, mini-robots to the moon, and researchers have witnessed a pulsar emit a very cool combination of traits in its most recent flare.

  • S2019E92 Where Do the Biggest Galaxies Come From?

    • November 19, 2019
    • YouTube

    Submillimeter galaxies are ancient, dense, massive galaxies with up to 10 times the number of stars in the Milky Way, and for a long time, scientists couldn’t even figure out how they existed in the first place.

  • S2019E93 Something Is Creating and Removing Oxygen on Mars

    • November 22, 2019
    • YouTube

    Oxygen levels in the Martian atmosphere are mysteriously inconsistent, and scientists don’t have a clear explanation for what’s behind the changes. Meanwhile, scientists DO have explanations for the tiger-like stripes on one of Saturn’s moons.

  • S2019E94 This Star Just Won't Stop Exploding!

    • November 26, 2019
    • YouTube

    M31N 2008-12a is a rare phenomenon called a recurrent nova, and it may hold the key to understanding the lives and cataclysmic deaths of massive stars.

  • S2019E95 3 Ways to Slingshot a Star

    • December 3, 2019
    • YouTube

    The star-mapping satellite Gaia has found more than 20 stars speeding across the Milky Way toward intergalactic space. There are just a few things that can slingshot a star out of a galaxy and all of them take some extreme gravitational interactions.

  • S2019E96 Planets Could Form Around Black Holes!

    • December 6, 2019
    • YouTube

    Scientists have discovered a black hole that could possibly everything we know about black holes, and also, evidence that planets, yes planets, could form around super massive black holes.

  • S2019E97 The Invisible Gas That Gave Us Galaxies

    • December 10, 2019
    • YouTube

    More than half of all the matter in the universe is out in the dark, "empty space." Although it's basically invisible, the intergalactic medium has a lot to tell us about the stuff we can see.

  • S2019E98 First Results from the Probe That Went to the Sun

    • December 13, 2019
    • YouTube

    Scientists have revealed the results of the Parker Solar Probe’s first two flybys of the Sun, and LIGO has a new instrument called the quantum vacuum squeezer!

  • S2019E99 How Two Dead Stars Sparked a New Field of Astronomy

    • December 17, 2019
    • YouTube

    Pulsars are more than just cool blinking lights shining across the universe. The discovery of the first binary pulsar paved the way for gravitational wave astronomy astronomy today.

  • S2019E100 New Discoveries from Our Second Interstellar Visitor

    • December 20, 2019
    • YouTube

    This year, scientists have had a chance to study something pretty mind-boggling: a comet that came from outside of our solar system.

  • S2019E101 The Brightest, Biggest Space News of 2019

    • December 27, 2019
    • YouTube

    This has been another really good year for exploring the universe. This is our annual superlatives episode, so let’s take a look at the some of the coolest breakthroughs of 2019.

  • S2019E102 How Long Will the Voyager Spacecraft Last?

    • December 31, 2019
    • YouTube

    For more than 40 years, the Voyager probes have traveled through space sending back all kinds of fascinating data. But these probes were never meant to send us data forever - so how much longer will these amazing probes last?

Season 2020

  • S2020E01 Future Space News of 2020

    • January 3, 2020
    • YouTube

    2020 is going to be an exciting year for space exploration, if everything goes according to plan. Humans are heading to space in new spacecraft, multiple Mars missions are on the horizon, and scientists are getting a new perspective on our Sun!

  • S2020E02 How to (Maybe) Find Your Own Little Amazing Meteorite

    • January 7, 2020
    • YouTube

    Most of the meteorites that land on this planet are pretty tiny. And enough of them fall to Earth each day that, theoretically, you could find micrometeorite yourself.

  • S2020E03 How Doctors on Earth Stopped a Medical Emergency in Space

    • January 10, 2020
    • YouTube

    There was a medical incident on the ISS which required NASA to treat an astronaut from Earth. And astronomers have discovered what might be some of the universe’s earliest stars.

  • S2020E04 This Little-Known Lab Is Changing the Future of Space

    • January 14, 2020
    • YouTube

    To live on the Moon, we’ll need to do things we’ve never done before and overcome challenges we’ve never faced. Luckily for us, NASA is developing some brand-new technology at Swamp Works.

  • S2020E05 Get Ready for a New Star in the Night Sky!

    • January 17, 2020
    • YouTube

    Astronomers are predicting that two stars are likely to merge and explode, and it may happen soon... on a cosmic timescale. Plus, scientists break up a meteorite and find the oldest solid matter ever discovered on earth.

  • S2020E06 How Levitating Dust Shapes Airless Worlds

    • January 21, 2020
    • YouTube

    Our moon has no atmosphere, but sometimes it has visible bands of light streaking across its sky, and scientists suspect that electrostatic forces could explain this levitating dust!

  • S2020E07 There's Apparently an Asteroid Between Mercury and Venus

    • January 24, 2020
    • YouTube

    Astronomers have found the first asteroid orbiting closer to the Sun than Venus, and recently, some scientists have been looking at Earth, trying to understand the origins of our protective magnetic field.

  • S2020E08 Could Life Survive Without a Star?

    • January 28, 2020
    • YouTube

    There are billions of planets out there that don't orbit stars. The sheer abundance of these planets has led some scientists to wonder if life could emerge without a star.

  • S2020E09 The Legacy of the Spitzer Space Telescope

    • January 31, 2020
    • YouTube

    On January 30, 2020, we had to say goodbye to NASA’s Spitzer Space Telescope after more thank 16 years of revolutionizing infrared astronomy. Today, SciShow sends it off and says thank you by taking a look back at it’s incredible legacy.

  • S2020E10 The Old Sailors' Tool That Saved Apollo 13

    • February 4, 2020
    • YouTube

    In the 1700s, sailors used sextants to navigate the seas. Centuries later, these old-timey tools saved the day on not one, but two of the Apollo missions!

  • S2020E11 Astronomers Captured Our Sun in the Highest Resolution Ever

    • February 7, 2020
    • YouTube

    A new telescope, the DKIST, has given us our most direct look at the Sun ever, in the highest resolution yet. And a paper published last week has revealed how “the dunes” auroras may be more than just a new spectacle in the night sky.

  • S2020E12 Why Space Over South America is Deadly for Satellites

    • February 11, 2020
    • YouTube

    There's a region of Earth's atmosphere known as the South Atlantic Anomaly, and it’s one of the most dangerous near-Earth areas of space, both for satellites and humans.

  • S2020E13 How Pluto's Heart Makes Its Atmosphere Spin Backward

    • February 14, 2020
    • YouTube

    Pluto's heart is revealing itself to be a major influence on the dwarf planet’s landscape and atmosphere, and scientists used atom probe tomography (APT) for the first time on lunar soil to study it atom by atom!

  • S2020E14 3 Historic Firsts in Asteroid Exploration

    • February 18, 2020
    • YouTube

    We’ve visited lots of places in our solar system in the last 60 years, but modern technology has made an unlikely candidate the hottest new frontier of solar system exploration: asteroids. Today, we’ll take a look at a few exciting discoveries that marked some asteroid firsts.

  • S2020E15 Betelgeuse Isn’t Just Dim: It’s Lopsided

    • February 21, 2020
    • YouTube

    The constellation of Orion has one shoulder marked by a bright red star called Betelgeuse, but over the last year it's dimmed enough to notice with the naked eye! and mission scientists are shedding some light on how Arrokoth and other Kuiper Belt objects may have formed.

  • S2020E16 Starquakes Could Be Behind 3 Cosmic Mysteries

    • February 25, 2020
    • YouTube

    We’ve detected seismic activity all around the solar system, from earthquakes to moonquakes, marsquakes to venusquakes. But the most dramatic quakes we know of actually happen on stars!

  • S2020E17 The First Results from NASA's Insight Lander!

    • February 28, 2020
    • YouTube

    We finally have some results from the InSight lander’s measurements on Mars, and the Japanese Space Agency is moving forward with a probe that will explore Mars’s moons.

  • S2020E18 Astronomers Just Discovered the Biggest Explosion Ever

    • March 6, 2020
    • YouTube

    Scientists just discovered the largest explosion ever detected, and it's thanks to the collaborative efforts of scientists from all over the world.

  • S2020E19 How Jupiter's Moons Showed Us the Speed of Light

    • March 10, 2020
    • YouTube

    Light travels through space as fast as anything in the universe possibly can, but before scientists could figure out light’s speed, they had to figure out whether that speed was even finite.

  • S2020E20 How Bad Are Satellite Constellations for Astronomy?

    • March 13, 2020
    • YouTube

    Imagine being excited to use one of the world's most advanced telescopes, only to see bright streaks of light on every picture! This is a problem facing some astronomers as satellites fill up the night sky.

  • S2020E21 Jupiter Is a Jerk… and Also Our Friend

    • March 17, 2020
    • YouTube

    The largest planet in our solar system is no stranger to throwing its weight around, both to our benefit and detriment here on Earth.

  • S2020E22 How Slime Mold Is Tackling Mysteries of Cosmology

    • March 20, 2020
    • YouTube

    We might be able to use slime molds to help predict the shape of matter in the universe, and the Rosetta mission may have figured out why many comets seem to be missing a bunch of nitrogen.

  • S2020E23 How Earth’s Tides Gave Us Life As We Know It

    • March 24, 2020
    • YouTube

    While astronomers are busy searching for life beyond Earth, they’ve also started asking another question: If life seems so difficult to find, then why is our world so full of it? One answer might be overhead right now: the Moon!

  • S2020E24 How to Study String Theory Using X-Rays

    • March 27, 2020
    • YouTube

    Over the last few years astronomers have been doing more and more research based on string theory, and thanks to modern telescopes the results are... less than encouraging.

  • S2020E25 Does Mars Need "The Cloud"?

    • March 31, 2020
    • YouTube

    Earlier this year, scientists pitched a mission to bring "the cloud" to Mars. While this proposal may seem expensive and risky, it's a legitimate idea that could fundamentally change how we plan space missions!

  • S2020E26 Old Voyager Data Has New Secrets About Uranus

    • April 3, 2020
    • YouTube

    Scientists announced a major discovery about Uranus using 34-year-old data from Voyager 2, and the Canadian telescope CHIME has detected 9 new FRB repeaters, helping us learn more about these mysterious signals.

  • S2020E27 What If the Universe Isn't Uniform?

    • April 7, 2020
    • YouTube

    According to the cosmological principle, the universe is more or less the same in all directions. But what happens when we put this to the test?

  • S2020E28 3 Times We Captured Physical Pieces of the Sun

    • April 10, 2020
    • YouTube

    It's tricky to study the particles of our Sun because Earth’s magnetic field deflects them, but scientists have found ways to do it! They're helping us understand things like the Sun’s origin, what it's made of, and how it might affect future colonization of the Solar System.

  • S2020E29 Could You Get Pregnant in Space?

    • April 14, 2020
    • YouTube

    Researchers are already trying to figure out if people can make space babies. If we need to live in space long-term, will our species be able to reproduce?

  • S2020E30 What We’re Learning from the Brightest Supernova Ever Seen

    • April 17, 2020
    • YouTube

    It’s been a great week for space explosions! Astronomers learned more about the mechanism that causes novas by looking at the nova V906 Carinae, and the brightest supernova ever recorded shed some new light on pulsation pair-instability.

  • S2020E31 The Secret Behind Those Beautiful Hubble Images

    • April 21, 2020
    • YouTube

    Since it launched in 1990, the Hubble Space Telescope has snapped more than a million images and changed the way we see the universe, literally.

  • S2020E32 3 Ways We Know What the Ancient Solar System Was Like

    • April 24, 2020
    • YouTube

    The New Horizons spacecraft has given us lots of clues about the early days of our solar system, but we don't always have to travel billions of kilometers to peer into our past.

  • S2020E33 How Climate Change Is Creating More Space Junk

    • April 29, 2020
    • YouTube

    You’ve probably heard a lot about how climate change is affecting our planet, but did you know a warming climate also affects objects in space?

  • S2020E34 How Space Tech Is Changing Life on Earth: 2020 Edition

    • May 1, 2020
    • YouTube

    We’ve developed thousands of technologies for space exploration, but luckily for us, sometimes those solutions apply to problems here on the ground, too.

  • S2020E35 Mercury Is So Hot, It’s Making Ice

    • May 5, 2020
    • YouTube

    Scientists first saw patches of ice on Mercury 20 years ago, and that discovery raised a lot of questions: How could ice survive on one of the solar system’s hottest planets, and how did it get there in the first place?

  • S2020E36 Turns Out, the Sun Is... Pretty Chill

    • May 8, 2020
    • YouTube

    Life on Earth depends on the steady nature of our star, and an international team of scientists searched thousands of other stars to try to find out if the sun has always been as consistent as it is now. And According to a study published Monday in Nature Astronomy, scientists searching for habitable exoplanets should maybe be looking in some more exotic places.

  • S2020E37 How the Movement of Other Planets Affects Earth — Yes, Really

    • May 12, 2020
    • YouTube

    Scientists have found at least three cycles in nature that can be traced back to the alignment of the planets. And while they won’t tell you anything about your love life or personality, by studying them, we can learn about our planet’s past and future—and even how the solar system has changed.

  • S2020E38 Carbon on the Moon Hints That It Didn’t Form Like We Thought

    • May 15, 2020
    • YouTube

    The idea that the Moon is a blown-off chunk of the Earth is known as the giant impact hypothesis - but the presence of carbon on the Moon throws this hypothesis into question.

  • S2020E39 These Stars Are Being Eaten Alive from the Inside

    • May 19, 2020
    • YouTube

    In general, a star’s size will determine its final destiny. Some stars fizzle out, while others explode, and what seals their fate may come down to a curious, cannibalistic process happening inside their cores!

  • S2020E40 The Equator Is a Bad Place for These Rocket Launches

    • May 22, 2020
    • YouTube

    Some satellites orbit in the same direction the planet rotates, which means they get a boost for their launch, but most have orbits where that isn’t ideal, and that creates some challenges for engineers.

  • S2020E41 The Cosmic Lasers That Form in Outer Space

    • May 26, 2020
    • YouTube

    Lasers are incredible narrow beams of light we can use to do everything from cutting metal to operating on people's eyeballs. But even though we came up with the idea on our own, humans didn’t actually make the first lasers.

  • S2020E42 No, We Didn't Discover a Bizarro Universe

    • May 29, 2020
    • YouTube

    Scientists picked up two unusual signals that seemed to be coming up from the ground instead of down from space. They're still working on understanding why, but despite what you may have heard, they aren't evidence for a parallel universe where time runs backwards.

  • S2020E43 The Key to Finding Life Elsewhere in the Universe: Purple Planets?!?

    • June 3, 2020
    • YouTube

    Some scientists believe that 3.6 billion years ago Earth might have been purple, and that theory is giving us some clues in our search for life in the universe.

  • S2020E44 This Collision Could Have Created the Solar System

    • June 5, 2020
    • YouTube

    A dwarf galaxy crashing through the Milky Way billions of years ago could have set off periods of star formation, and astronomers recently captured a rare flashing phenomenon that only shows up in the sky for a few days!

  • S2020E45 How to Kill a Galaxy

    • June 9, 2020
    • YouTube

    Our Milky Way galaxy is alive and well, producing new stars all the time. But there’s another group of galaxies out there, populated only by venerable red dwarf stars - the young stars are nowhere to be seen. In effect, these galaxies are... dead. How did they die?

  • S2020E46 We Still Can't Find the First Stars in the Universe

    • June 12, 2020
    • YouTube

    Astronomers looking farther back in time than ever before are giving us a better idea of what the early universe must have been like, and we've identified another of the mysterious ultraluminous X-ray pulsars.

  • S2020E47 Mars Express: Triumph From Disaster

    • June 16, 2020
    • YouTube

    Mars Express, one of the longest-running planetary probes ever made, was only intended to last for about two Earth years, but it's still going at 17! And it's taught us an unbelievable amount, including everything from studying its geology and atmosphere to searching for signs of life!

  • S2020E48 Dust Could Turn Extreme Planets Habitable

    • June 19, 2020
    • YouTube

    Some tidally-locked exoplanets might actually be more habitable than astronomers initially thought, and we have some ideas about how Peter Pan disks can last so much longer than other protoplanetary disks.

  • S2020E49 3 Medical Breakthroughs from the International Space Station

    • June 23, 2020
    • YouTube

  • S2020E50 Our Galaxy Could Be Full of Exoplanets with Oceans

    • June 26, 2020
    • YouTube

    Earlier this spring NASA announced a new research model that predicts that ocean worlds are far from rare, and our galaxy might be full of them. And a new study examines evidence that Pluto may have had an underground ocean all along!

  • S2020E51 This Planet Used to Be the Core of a Gas Giant?

    • July 3, 2020
    • YouTube

    Scientists may have found the light from two merging black holes, and a gas giant, without the gas.

  • S2020E52 How Celestial Bodies Affect Life in the Ocean

    • July 7, 2020
    • YouTube

    Life on Earth has always been shaped by other bodies in space, and life in our oceans is especially susceptible to interactions that have huge effects on life as we know it!

  • S2020E53 This Massive Star Just... Vanished

    • July 10, 2020
    • YouTube

    Astronomers have some insights into the mysterious disappearance of the luminous blue variable star in the Kinman Dwarf Galaxy, and we're digging up more clues about how our friend the Moon may have formed.

  • S2020E54 The First Time We Met a Comet, We Blew a Hole in It

    • July 14, 2020
    • YouTube

    In the first mission of its kind, Deep Impact’s goal was to teach us about the interior of comets...by blowing a hole in the side of one!

  • S2020E55 The Mysterious Green Glass on the Moon (Plus: How to See Comet NEOWISE!)

    • July 17, 2020
    • YouTube

    Earlier this month, a Chinese moon rover discovered a mysterious glittery substance at the bottom of a lunar crater. How did it get there? Also, Comet NEOWISE takes thousands of years to circle the Sun, and right now we can see it in our night sky!

  • S2020E56 Cosmic Shear: Revealing the Invisible Universe

    • July 21, 2020
    • YouTube

    What exactly are the invisible things out there, and how did they help form the universe as we know it? To explore and understand the most spectacular structures out there, scientists have been using cosmic shear to indirectly detect dark matter, and map out and how it’s distributed around the universe.

  • S2020E57 These Icy Rocks Might Be from Another Solar System

    • July 24, 2020
    • YouTube

    New research suggests that Venus’ patterned crust might currently be more active than we thought! Astrophysicists have also modeled the orbits of mysterious objects between Jupiter and Neptune, and found that they could have come from other solar systems!

  • S2020E58 How Radio Waves Could Help Clear the Way to Space

    • July 28, 2020
    • YouTube

    There is an invisible shell of radiation surrounding our planet that can wipe out satellites and could endanger future explorers. One possible solution to this problem? Good, old-fashioned radio waves.

  • S2020E59 3 New Missions Just Left for Mars!

    • July 31, 2020
    • YouTube

    A launch window that only happens every 26 months means it’s the perfect time to head to Mars! The United Arab Emirates, China, and the United States all took advantage of this excellent timing.

  • S2020E60 The Planets with Inside-Out Weather

    • August 4, 2020
    • YouTube

    Way out in the solar system, the heat of the Sun drops off dramatically, so the gas giants get just a tiny percent of the solar radiation that reaches Earth. Instead, their weather is fueled from the inside out!

  • S2020E61 This Stellar Blast Showered the Universe with… Calcium

    • August 7, 2020
    • YouTube

    We knew some stars created large amounts of calcium, but no one really ever knew how...until now! Plus, astrophysicists believe they’ve finally seen evidence of the star that created one of the most important supernovas ever!

  • S2020E62 Satellite Squad Goals: The Cluster Mission to the Magnetic Field

    • August 11, 2020
    • YouTube

    Earth’s magnetic field is special! And, in the last 20 years, we’ve made incredible discoveries, thanks to a squad of probes that have flown around our planet, observing solar wind as a team!

  • S2020E63 Looking for Life During a Lunar Eclipse

    • August 14, 2020
    • YouTube

    Astronomers took advantage of a lunar eclipse to study Earth as if it were an exoplanet, and Mars's Insight lander used seismic data to reveal for the first time boundaries between different layers of Mars.

  • S2020E64 How Plastic Balls and Garbage Cans Help Us Study Space

    • August 18, 2020
    • YouTube

    How can we be so sure of the way celestial bodies behave when they're so far away? With the help of some speakers, garbage cans, and springs of course.

  • S2020E65 Mystery Solved: We Finally Know Why Betelgeuse Suddenly Faded

    • August 21, 2020
    • YouTube

    Our neighboring star Betelgeuse got noticeably dimmer a few months ago, and thanks to the Hubble telescope, we recently figured out what was going on. Also, the Arecibo Observatory in Puerto Rico suffered some damage this week.

  • S2020E66 The History Hidden in Martian Dunes

    • August 25, 2020
    • YouTube

    The Red Planet was once more like Earth, with a thicker atmosphere and liquid water. Now, scientists are looking for clues to its past in the planet’s ancient fossil dunes, barchan dunes, and ghost dunes.

  • S2020E67 We're Getting Closer to Predicting Solar Flares

    • August 28, 2020
    • YouTube

    A new model has been able to predict solar flares with up to about 20 hours of warning, and our galaxy is farting blobs of cold gas inside the Fermi Bubbles!

  • S2020E68 Mars's Surface Is Messed Up | The Martian Dichotomy

    • September 1, 2020
    • YouTube

    Most rocky planets have pretty consistent surface features, with a fairly even mix of mountains and basins in each hemisphere. This is NOT the case on Mars! What do scientists know about this mystery?

  • S2020E69 The First Water on Earth Might've Come From… Earth?

    • September 4, 2020
    • YouTube

    Astronomers have thought for years that Earth was dry in the beginning, but a new paper suggests that Earth might have actually started out wet! And In other meteorite news, a new study of impact sites might give us new clues about what’s happening deep inside the earth!

  • S2020E70 The Cosmic Ladder That Lets Us Map the Universe

    • September 8, 2020
    • YouTube

    Considering how massive our universe is, we know the distances to cosmic objects surprisingly well. What tools and clues do scientists use to measure distances that are so enormous they sound like made-up numbers?

  • S2020E71 Found: The Missing Link of Black Holes

    • September 11, 2020
    • YouTube

    Astronomers have been trying to figure out black holes for hundreds of years, and newly published research may hold some big clues! Plus, rust isn’t supposed to happen in dry and airless places like the Moon. Could the elements that allow for rust have come from Earth?

  • S2020E72 The Telescope That Revealed the X-Ray Universe

    • September 15, 2020
    • YouTube

    Some of the most exciting phenomena in space can’t be seen from Earth because our atmosphere soaks up high-energy light. That’s why NASA built Chandra, the most powerful X-ray telescope ever launched, and the observatory has helped scientists make major discoveries about high-energy events in space, including the processes surrounding the birth and death of stars!

  • S2020E73 Dark Matter Is Even Stranger Than We Thought

    • September 18, 2020
    • YouTube

    Scientists can see how dark matter is distributed based on how its gravity affects light, but when astronomers compared recent data from the Hubble Space Telescope and the Very Large Telescope to current models, something didn’t add up. Does this mean our current assumptions about dark matter physics are wrong?

  • S2020E74 The Simple Molecule Behind Our Complex Universe

    • September 22, 2020
    • YouTube

    All the complexity in the universe ultimately owes its existence to one of the simplest materials possible: molecular hydrogen. And not only did this molecule play a huge role in building the universe as we know it, today, it also helps us explore it.

  • S2020E75 It’s Probably Not Aliens on Venus… But It Could Be

    • September 25, 2020
    • YouTube

    Is there life on Venus? If there is, it would have to be unlike anything we’ve ever seen! New evidence means the possibility of life there is in question, but it could also mean a few other things.

  • S2020E76 3 Times We Intentionally Crashed into Other Worlds

    • September 29, 2020
    • YouTube

    Most of the time, it’s not great when an expensive spacecraft slams into an extraterrestrial body. But now and then mission control intentionally crashes a spacecraft for science!

  • S2020E77 We Know More About That Underground Lake on Mars

    • October 2, 2020
    • YouTube

    Scientists have taken a look at the underground lake found on Mars in 2018, and it might not be the only one! Plus, new clues might help us understand why the Sun’s atmosphere is so much hotter than the surface!

  • S2020E78 How the Space Shuttle Atlantis Changed Space Exploration

    • October 6, 2020
    • YouTube

    From launching probes to ferrying experiment racks to the ISS, the Space Shuttle Atlantis has left quite the legacy on space exploration and scientific research.

  • S2020E79 A Violent Origin Story for Tiny Space Diamonds

    • October 9, 2020
    • YouTube

    Scientists may have discovered some clues to two vastly different anomalies. Microscopic diamonds inside of meteors, and why ancient black holes are so massive.

  • S2020E80 The Two-Faced Role of Planetary Magnetic Fields

    • October 13, 2020
    • YouTube

    Given that Earth’s magnetic field helps protect its life-sustaining atmosphere, you might think that the stronger a planet’s magnetic field, the better. But as it turns out, some planets’ relationships with their magnetic fields are a little more complicated.

  • S2020E81 How We Learned Black Holes Actually Exist | 2020 Nobel Prize in Physics

    • October 16, 2020
    • YouTube

    Did you know Einstein never thought we’d find actual black holes in space? It took decades of research to show black holes are physically possible, and some of the scientists behind that research were honored this year with the Nobel Prize in Physics.

  • S2020E82 How to Find Dark Matter with a Billion Pendulums

    • October 23, 2020
    • YouTube

    Are you there Dark Matter? It's me, a billion pendulums.

  • S2020E83 The First Time We Saw All of Venus: The Magellan Mission

    • October 27, 2020
    • YouTube

  • S2020E84 There’s Water on the Moon—and Possibly More Than We Thought

    • October 30, 2020
    • YouTube

    If we want to establish a colony on the Moon, coming up with enough water is a huge challenge. Scientists have long suspected there might be water hiding on the lunar surface. Were they right? Plus, some quick recovery work led to exciting discoveries from chunks of a meteorite!

  • S2020E85 Fire, Lightning, and Crystals in Space: 20 Years on the ISS

    • November 3, 2020
    • YouTube

    2020 marks two decades of people living and working about the ISS, and from fireballs to microgravity grown crystals, they've been keeping busy.

  • S2020E86 How Other-Worldly Auroras Help Us Explore the Galaxy

    • November 10, 2020
    • YouTube

    Earth’s northern and southern lights are some of the most magical sights on our planet. But they’re not unique to Earth, and aside from being beautiful, auroras can also give us unusual insights into these other worlds.

  • S2020E87 On This Planet, the Floor Is Actually Lava

    • November 13, 2020
    • YouTube

    We have new insights into the bizarre nature of lava planets, and the icy moon Europa may yet reveal some of her salty secrets.

  • S2020E88 The Deepest Sound in the Universe

    • November 17, 2020
    • YouTube

    Thanks to X-ray telescopes, scientists in the 1970s found the first real evidence that black holes actually existed, and astronomer Andrew Fabian has used X-ray research to unlock incredible mysteries ever since, including a giant sound wave that can travel through intergalactic gas!

  • S2020E89 How Radioactivity Makes Planets Habitable

    • November 20, 2020
    • YouTube

    The perfect balance of radioactive elements inside planets like ours might make it habitable, and researchers are challenging some ideas about how Mars is losing its water.

  • S2020E90 Jupiter's Moons May Keep Each Other Warm

    • November 24, 2020
    • YouTube

    As small as Jupiter's moons are in comparison to the giant planet, they may actually have an important role to play in keeping each other warm, heating the moons enough to have liquid oceans!

  • S2020E91 How a Doomed Spacecraft Lived to Tell the Tale of the Sun

    • December 1, 2020
    • YouTube

    What would you do if you were in charge of a billion-dollar satellite that was spinning out of control? In 1998, NASA and ESA engineers had to solve this exact problem. How did they avert this disaster?

  • S2020E92 A Farewell to the Arecibo Observatory

    • December 4, 2020
    • YouTube

    On December 1, 2020, Arecibo's long-story came crashing down to an end. While it's sad to see this monumental observatory go, it's worth looking back over the many discoveries it's made over the last 60 years.

  • S2020E93 The Tiny Planet Revealing Gravity’s Big Secrets

    • December 8, 2020
    • YouTube

    Mercury’s path through our solar system is, well, a little eccentric, and some of its movements were a mystery astronomers couldn’t explain for a long time. Then, in the early 20th century, Einstein reran the numbers and proved a whole lot more!

  • S2020E94 This Nebula Is Disappearing Absurdly Fast

    • December 11, 2020
    • YouTube

    Over just 20 years, the Stingray nebula has become anywhere from 29 to 900 times dimmer! It could teach us a ton about how nebulas evolve over time, and what happens when everything is going a lot faster than expected.

  • S2020E95 Our Smelly Solar System

    • December 15, 2020
    • YouTube

    Sight, sound, and yes, taste, have all helped humanity better understand space, but what about smells? Scientists think we have a pretty good idea of what some places smell like, and decoding astronomical aromas can be a good way of working out what places are made of.

  • S2020E96 The Farthest Galaxy We've Ever Seen!

    • December 18, 2020
    • YouTube

    Scientists have spotted a galaxy from the early origins of the universe, and found evidence to support the existence of a 9th planet in our solar system.

  • S2020E97 How Joan Feynman Demystified Auroras | Great Minds

    • December 22, 2020
    • YouTube

    The auroras are one of earth's most dazzling displays, but thanks to Joan Feynman we know that they're so much more.

  • S2020E98 Space Superlatives of 2020!

    • December 25, 2020
    • YouTube

    2020 wasn't ALL bad news. This year scientists found ludicrously fast stars, ancient galaxy clusters, and developed a camera that could change how we study the night sky.

  • S2020E99 We Used 1800s Math to Solve One of Jupiter’s Biggest Mysteries

    • December 29, 2020
    • YouTube

    Jupiter's storms cover the planet, but the ones at the planet’s poles have mystified astronomers for years: why haven’t they merged together yet?

Season 2021

Season 2022

  • S2022E01 The Night Sky in Infrared

    • January 4, 2022
    • YouTube

    James Webb wouldn’t be equipped to look in the infrared if not for the previous missions that have allowed us to see the universe in wavelengths that the human eye can’t see!

  • S2022E02 Keeping the Fungus Among Us in Space

    • January 7, 2022
    • YouTube

    Developing new methods for survival in space is a constant and ever-evolving process, and a well known Earthly organism has the potential for multiple applications within space’s unforgiving environment!

  • S2022E03 Can Moon Colonies Get Oxygen From the...Moon?

    • January 11, 2022
    • YouTube

    As we look towards longer missions to the Moon, the shear amount of resources needed to survive becomes a much bigger question. Without space semi-trucks to haul life-giving resources to astronauts, can we utilize the Moon’s barren landscape to help us breathe?

  • S2022E04 Why Don't Comets Ever Have a Green Tail?

    • January 25, 2022
    • YouTube

    There’s no question that comets have been regarded as some of the most beautiful things in the night sky for thousands of years. But why are their heads often green but never their tails?

  • S2022E05 What's Next for the James Webb Space Telescope

    • January 28, 2022
    • YouTube

    It finally happened! The James Webb Space Telescope is on its way to capturing never-before-seen images of the universe! But now that it’s airborne and unfurled, what are its next steps before it can deliver the goods?

  • S2022E06 How 19th Century Lighthouses Power Advanced Space Drives

    • February 1, 2022
    • YouTube

    The technology we use for space exploration gets more advanced all the time, but some of our most ambitious programs actually rely on optics invented in the 19th century for lighthouses.

  • S2022E07 The Sweetest Rocks in Space

    • February 7, 2022
    • YouTube

    Sugars aren’t just for munching and crunching, they also make up our genetic code! So what does it mean to find sugars INSIDE meteorites?

  • S2022E08 The Massive Chunk of Metal Hiding in the Moon

    • February 11, 2022
    • YouTube

    The moon's South Pole-Aitken basin is the largest known crater in existence, and there's something big hidden underneath.

  • S2022E09 Space Headwinds Might Help Us Find Dark Matter

    • February 15, 2022
    • YouTube

    Some scientists are hoping to use our motion through the galaxy to help detect some of the most elusive particles of all: dark matter.

  • S2022E10 Is the Size of Neutron Stars A Lie, Or Only A FRIB?

    • February 18, 2022
    • YouTube

    Have we been wrong about how big neutron stars are this whole time?

  • S2022E11 The Oldest Crater from a Meteorite…Isn’t a Crater after All?

    • February 22, 2022
    • YouTube

    There's one crater that may be older than any that we know of. Except there's a snag, it might not actually be a crater at all.

  • S2022E12 Pioneer 10: Our First View into Outer Planets

    • March 1, 2022
    • YouTube

    In the 1970's, no vehicle had gone beyond the asteroids between Mars and Jupiter, that is until Pioneer 10.

  • S2022E13 Two Decades Later, We Know Why the Sun Is a Lava Lamp

    • March 4, 2022
    • YouTube

    In 1999, scientists discovered something that took over 20 years to solve. Why do solar flares move like a lava lamp?

  • S2022E14 Helping Build the Internet: Valerie Thomas | Great Minds

    • March 8, 2022
    • YouTube

    Despite computers barely being a thing when she was born, Valerie Thomas knew that she was cut out for the tech world, pushed until she got there, and contributed to some hugely important technologies that many of us could not live without.

  • S2022E15 What’s Hiding Inside The Crab Nebula?

    • March 11, 2022
    • YouTube

    The Crab Nebula is one of the most studied things in the sky, but it took glimpses through various wavelengths of the electromagnetic spectrum to get a full picture of what’s hiding inside!

  • S2022E16 Could Squirrels Be the Key to Long Distance Spaceflight?

    • March 15, 2022
    • YouTube

    Space is hard on the human body, but a certain ground squirrel might have the guts to show us how to last longer in space.

  • S2022E17 From Optics to Spacewalks: Dr. Ellen Ochoa | Great Minds

    • March 18, 2022
    • YouTube

    Dr. Ellen Ochoa is incredible! She published over a dozen papers, co-filed three patents, and was a NASA engineer, all before becoming an astronaut and spending nearly a thousand hours in space.

  • S2022E18 How Space Changes Your Brain

    • March 22, 2022
    • YouTube

    We've been sending people to space since the '60s, and we're just now starting to learn what that does to their brains.

  • S2022E19 What Will Happen to The ISS?

    • March 25, 2022
    • YouTube

    After more than two decades buzzing around above our heads, the life of the ISS will soon be coming to a close. But what does that actually look like? And what does it mean for the future of space experimentation?

  • S2022E20 That’s Not a Black Hole, It’s a Vampire

    • March 29, 2022
    • YouTube

    What was once thought to be a black hole might in fact be a star that feeds on its own kind!

  • S2022E21 What Do You Learn When You Touch the Sun?

    • April 5, 2022
    • YouTube

    Though our Sun is something we can count on to rise and set each day, it also comes with some phenomena that can catch us by surprise: solar winds. To better predict when these winds will travel all the way to Earth, we sent the Parker Solar Probe to our big flaming ball in the sky with a big mission.

  • S2022E22 How to Tilt a Black Hole

    • April 12, 2022
    • YouTube

    It seems the more we learn about black holes, the more there is to find out. In this case, what in the universe could have put one on its side?

  • S2022E23 How to Clean Up After Ourselves in Space

    • April 19, 2022
    • YouTube

    We've launched thousands of spacecraft over the years. And as the space junk around our planet builds up, researchers are working on ways to clean things up using some obvious things, like lasers, and some less obvious ones, like solar sails.

  • S2022E24 Do Black Holes Have Quantum Hair?

    • April 22, 2022
    • YouTube

  • S2022E25 Can We Grow Plants On the Moon?

    • April 26, 2022
    • YouTube

    Despite how easy it looks in movies, growing plants on other planets is trickier than you might imagine.

  • S2022E26 We’re Talking To Aliens

    • April 29, 2022
    • YouTube

    We’ve done a lot of searching for life in the universe and we need to continue to if we hope to make contact. But not all of our attempts were expected to succeed. That’s where Beacon in the Galaxy comes in.

  • S2022E27 That Time NASA Recycled a Mars Lander

    • May 3, 2022
    • YouTube

    While most spacecraft are designed and built from scratch for one particular mission, the Phoenix Lander was pieced together from previous missions and rose from the ashes...all the way to Mars.

  • S2022E28 This Exoplanet Shows We Might Be Wrong About Planet Formation

    • May 10, 2022
    • YouTube

    Though we’ve been able detect thousands of exoplanets in the last few decades, we’ve now directly imaged an exoplanet that changes our whole perspective on how we think planets like Jupiter form!

  • S2022E29 The Hottest Exoplanets in the Universe

    • May 13, 2022
    • YouTube

    With exoplanets, often we want to know if they are Earth-like and whether they might host life, but we can also learn a lot from planets that are nothing like Earth.

  • S2022E30 How Saturn's Moons Could Help Us Live in Space

    • May 17, 2022
    • YouTube

    As we continue our search for life out in the universe, it's important that we leave no stone, or moon, unturned.

  • S2022E31 A Telescope Bigger Than the Solar System

    • May 20, 2022
    • YouTube

    It turns out if you’d like to take a deeper look into the universe, the universe itself might actually help you do that!

  • S2022E32 Space Medicine: What We Need and What We Have

    • May 24, 2022
    • YouTube

    If we're going to send astronauts out to Mars someday, we'll need to figure out how to send a pharmacy with them.

  • S2022E33 Why These Two Planets SHOULD Be the Same

    • May 27, 2022
    • YouTube

    You'd think that two planets with similar stats, orbits, and parent stars would grow up to be pretty similar, but these twins have atmospheres that beg to differ.

  • S2022E34 Where Are All the Exo-Earths?

    • May 31, 2022
    • YouTube

    Scientists have discovered over 5,000 exoplanets in the last few decades, but where are the Exo-Earths?

  • S2022E35 Mama, Where Do Galaxies Come From?

    • June 3, 2022
    • YouTube

    For most of human history, we didn't know that galaxies were a thing. So over the past century, astronomers have been working to understand how galaxies come to be and how they evolve over time. And for a full decade, there was one telescope helping to light the way.

  • S2022E36 Detecting Tornadoes Early by Observing Lightning... from Space

    • June 7, 2022
    • YouTube

    It’s handy having a view of Earth from space. This particular view may be one that changes the way we predict weather phenomena.

  • S2022E37 Earth Doesn’t Orbit the Sun

    • June 10, 2022
    • YouTube

    Understanding gravity can sometimes be a bit of a balancing act, much like the fundamental laws of physics and how they inform what it is exactly that Earth orbits.

  • S2022E38 Fun in the Summer Sun… on Saturn

    • June 17, 2022
    • YouTube

    For 13 years, the Cassini probe circled Saturn and sent back fascinating data about the seasons of Saturn as it moved through a 29 Earth year Saturnian year.

  • S2022E39 “Do Fabulous Science”: Jane Rigby | Great Minds

    • June 24, 2022
    • YouTube

    Astronomer Dr. Jane Rigby challenges the limits of the naked eye. Having influenced most famous telescopes that come to mind, her work is defined by breaking boundaries both physical and beyond.

  • S2022E40 Why These Rovers Will Never Go To Mars

    • June 28, 2022
    • YouTube

    It’s nice to think that every rover we land on Mars is totally unique, but isn’t it even nicer to know that they’ve got a twin or even a triplet here on Earth making sure they’re up for the job ahead?

  • S2022E41 The Chinese Mission Finding Water on Mars

    • July 5, 2022
    • YouTube

    Several rovers on Mars's surface are currently in operation, including one you might not have heard of: China’s Zhurong rover. It's already spent over a year on the Martian surface and is bringing us ever closer to understanding the history of our planetary next-door neighbor.

  • S2022E42 Eclipses That Don't Eclipse

    • July 13, 2022
    • YouTube

    Here on Earth, we’re used to seeing both lunar and solar eclipses. But further out are eclipses that don’t behave at all the way we expected them to.

  • S2022E43 Special Webb Update: The Webb's First Four (actually 7) Images Explained

    • July 14, 2022
    • YouTube

    The first full-color images from the James Webb Space Telescope are finally here! Let's take a look, talk about what we're seeing, and compare them to the most detailed version of these images we had before.

  • S2022E44 What Keeps Astronauts Up At Night?

    • July 19, 2022
    • YouTube

    Sleep is a crucial activity for our brains to function properly. But when you’re on the ISS, you face a myriad of distractions and obligations that make it difficult to get good shuteye. So how do these astronauts ever get restful sleep?

  • S2022E45 How To X-Ray A Black Hole

    • July 26, 2022
    • YouTube

    Black holes are everywhere, including at the center of our galaxy. But because they’re invisible they’re quite difficult to study. Looking at the disks of material surrounding them, however, can give us tons of clues about how they function, how they form, and how accurate Einstein’s theory of general relativity really was.

  • S2022E46 Hayabusa: The Artificial Meteor Launched From An Asteroid

    • August 2, 2022
    • YouTube

    After we retrieved samples of the moon, it was quite a while before we could land on anything else and bring bits of it back home.

  • S2022E47 How Distant Stars Let Us See the Solar System Up Close

    • August 9, 2022
    • YouTube

    Occultations may sound spooky, but in actuality they can inform us of some of the most unknown parts of the universe.

  • S2022E48 The Mystery of the Star That Wasn't There

    • August 16, 2022
    • YouTube

    In the 1970s, astronomers discovered a mysterious source of gamma rays that, 50 years later, still hasn’t revealed all of its secrets.

  • S2022E49 The Asteroid That Nearly Swallowed OSIRIS-Rex

    • August 23, 2022
    • YouTube

    It's always an asteroid heading straight toward us that we worry about, never what happens to us when we head straight toward the asteroid. OSIRIS-REx's experience with Bennu tells us it's worth a thought.

  • S2022E50 The Ominous Reason Phobos Has Lines on It

    • September 1, 2022
    • YouTube

    Mars’s moon, Phobos, is striped with grooves all across its surface. But if one theory about where they came from is true, does that mean this moon might be on its way out?

  • S2022E51 Where Did Mercury’s Spots Come From?

    • September 6, 2022
    • YouTube

    The Sun isn’t the only celestial body in the solar system to boast spots of its own. Mercury, too, has its fair share, and they’re worth wondering about.

  • S2022E52 New and Ancient Lessons from Lunar Eclipses

    • September 13, 2022
    • YouTube

    Ancient perceptions of lunar eclipses weren’t as primitive as one might think. Some rigorous math was applied to these cosmic events that shaped our understanding of the solar system.

  • S2022E53 How to Move the Sky

    • September 20, 2022
    • YouTube

    The earth is always moving, and our view of the night sky is slowly but surely changing.

  • S2022E54 Goodbye SOFIA, Thanks for All the Discoveries

    • September 27, 2022
    • YouTube

    SOFIA or The Stratospheric Observatory for Infrared Astronomy is coming to an end, but let's look back on some of the amazing discoveries of this flying telescope.

  • S2022E55 Goodbye, SOFIA, the Telescope That Actually Flew

    • September 30, 2022
    • YouTube

    In 1997, NASA bought a Boeing 747SP for what might be both a super cool and super absurd purpose. Turn it into SOFIA, a flying telescope.

  • S2022E56 The One-Second Success Story of Venera 7

    • October 4, 2022
    • YouTube

    Venus may have been named after the Roman goddess of beauty, but once humans started sending spacecraft to the planet next door, we quickly learned that beauty… hurts.

  • S2022E57 How Do You Date a Star?

    • October 11, 2022
    • YouTube

    Figuring out the age of a blinking speck in the sky is a difficult feat, especially if considering how many types of stars there are. This is where a Hertzsprung-Russell meets a gyrochronologist.

  • S2022E58 Why are Astronomers So Bad at Naming Things?

    • October 18, 2022
    • YouTube

  • S2022E59 Great Minds: Conny Aerts, the Starquake Professor

    • October 25, 2022
    • YouTube

  • S2022E60 How to Make a Dark Matter Planet

    • October 28, 2022
    • YouTube

  • S2022E61 The Spacecraft That Wasn't Designed To Land, But Did

    • November 1, 2022
    • YouTube

  • S2022E62 Life on an 8-Hour Planet

    • November 8, 2022
    • YouTube

  • S2022E63 Early Earth Microbes May Have Eaten Raw Meteorites

    • November 15, 2022
    • YouTube

  • S2022E64 Earth’s other moons

    • November 22, 2022
    • YouTube

  • S2022E65 Are Space Sounds Lies?

    • November 29, 2022
    • YouTube

  • S2022E66 How Do You Find the Moon’s Best Picnic Spot?

    • December 2, 2022
    • YouTube

  • S2022E67 How Blocking the Sun Makes Mars Hotter

    • December 6, 2022
    • YouTube

    If we’re going to send people to Mars someday, we’re going to need to be very conscious of the challenges presented in this endeavor. And at the top of that list is the ferocious nature of dust on the barren planet.

  • S2022E68 Five Of The Biggest, Baddest Supernova Varieties

    • December 13, 2022
    • YouTube

    Supernovae are only rare to the passive stargazer, but if you’re an astronomer studying them, you get to see some of the most brilliant explosions in the universe. Here are five of the most significant supernovae known to science.

  • S2022E69 This Year in Space News (That Isn't JWST)

    • December 16, 2022
    • YouTube

    If you’ve been distracted looking at the amazing photos The James Webb Space Telescope has taken, not to worry. Here are three other stellar stories from the last year of space science!

  • S2022E70 Space Superlatives of 2022

    • December 20, 2022
    • YouTube

    As we wrap up 2022, we'd like to celebrate a few of the cosmic “winners” discovered this year, at least while they still hold their titles.

  • S2022E71 Did Earth's Continents Come from Space?

    • December 27, 2022
    • YouTube

    Earth didn't always have the land beneath your feet, but what might have caused it to form is a bit of a mystery.

Season 2023

  • S2023E01 What's Going to Space in 2023?

    • January 3, 2023
    • YouTube

    2022 was a pretty exciting year for space science, but what news might we expect in the coming year?

  • S2023E02 Atlas: The Little Rocket That Still Can

    • January 6, 2023
    • YouTube

    In 1962, John Glenn went into orbit on an Atlas rocket, and thus began a family of rockets that lasted for 60 years!

  • S2023E03 Eavesdropping On Other Worlds

    • January 10, 2023
    • YouTube

    We usually only get to use our sense of sight in exploring the universe, but that hasn’t prevented scientists from trying to listen in.

  • S2023E04 The Future of the Search for Life

    • January 13, 2023
    • YouTube

    Astronomers have found more than 5,000 planets in the last three decades, but that’s not nearly as exciting as potentially coming across the first extraterrestrial creatures. And we may finally be in a position to make that discovery.

  • S2023E05 Is Our Solar System Missing Moons?

    • January 17, 2023
    • YouTube

    You might be pretty confident that when a moon is there it’s there to stay, but that’s not always the case. Moons may have a history of disappearing.

  • S2023E06 JWST: Looking Beyond The Pretty Pictures

    • January 20, 2023
    • YouTube

    The James Webb Space Telescope isn't just for finding Pinterest worthy pictures, we're finding some amazing details in the sometimes blurry background photos.

  • S2023E07 This Toxic Liquid Telescope from the 1850s Is Finally Useful

    • January 24, 2023
    • YouTube

    Sometimes looking into a pool of a toxic liquid holds the secrets of the universe–or maybe just this one time.

  • S2023E08 The Biggest Star In The Universe Is Too Small

    • January 27, 2023
    • YouTube

    R136a1 is the most massive star that astronomers have ever discovered. It's so massive you might think the laws of physics wouldn't allow it. But it turns out that its current mass estimate is actually so low that it threatens our understanding of how the universe got to be where it is, today!

  • S2023E09 We Don’t Know Why Astronauts Get Motion Sick

    • January 31, 2023
    • YouTube

    A majority of modern astronauts experience any one of a suite of symptoms scientists collectively call Space Motion Sickness, or SMS. But despite knowing about it for nearly as long as humans have gone into space, we still don't know exactly what causes it, or how to predict which astronauts might lose their lunch.

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