StarTalk @StarTalkRadio
What if bodies of water freeze from the bottom up? Why would a physicist write a weight-loss book? Why does ice float? In this week's episode, @neiltyson and @chucknicecomic investigate things you thought you knew: https://t.co/hkgdjd1lEn https://t.co/A7MS7VMuMs — PolitiTweet.org