NSF Graduate Fellow Alex Teachey of the Cool Worlds Lab explains our new paper which devises a method to cloak entire planets from extraterrestrial civilizations! This was a really fun little paper which started out from the idea of how to broadcast or signal our presence, but as we worked on it we realized it could also be used a cloaking device too. As always, ask us your questions in the comments below and we'll get back to you! ::More about this Video:: ► Kipping & Teachey (2016): "A Cloaking Device for Transiting Planets" http://arxiv.org/abs/1603.08928 ► BBC article on Stephen Hawking's comments about avoiding alien contact: http://news.bbc.co.uk/2/hi/8642558.stm ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::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 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!!