Want to ask some sort of crazy question about Space?: Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! null Let us know what topics you want to learn more about: http://bit.ly/spacetimepoll Hey Everyone! This week’s episode isn’t a full episode, but you should DEFINITELY STILL WATCH because we’re giving t-shirts away to a few of those who can correctly guess the answer to the challenge question. Watch this week’s episode to get your assignment, then get working! Once you have it figured out email pbsspacetime@gmail.com with the subject line "Balloon Challenge". SmarterEveryDay Baffling Balloon Physics https://www.youtube.com/watch?v=y8mzDvpKzfY Music: Tropico de Tauro - Sr. Aye (https://soundcloud.com/sr-aye)