Astronomers are in a frenzy pointing their telescopes an alien visitor - the first asteroid which appears to have originated from outside the Solar System. So what do we know about this object, called 'Oumuamua, so far and how special is it really? ► Meech et al. (2017), "Discovery and Characterization of the First Known Interstellar Object": https://www.eso.org/public/archives/releases/sciencepapers/eso1737/eso1737a.pdf ► Jewitt et al. (2017), "Interstellar Interloper 1I/2017 U1: Observations from the NOT and WIYN Telescopes": https://arxiv.org/abs/1711.05687 ► Schneider (2017), "Is 1I/2017 U1 really of interstellar origin?": https://arxiv.org/abs/1711.05735 ► Bannister et al. (2017), "Col-OSSOS: Colors of the Interstellar Planetesimal 1I/2017 U1 in Context with the Solar System" https://arxiv.org/abs/1711.06214 ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Background music by Thomas Bergersen "Final Frontier": http://www.thomasbergersen.com ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!