How certain are we about aliens? Neil deGrasse Tyson and cohosts Chuck Nice and Gary O’Reilly answer science questions from celebrities like Kevin Hart, Jack White, Nikki Glaser, and more! Comedian Kevin Hart asks if space can take the wrinkles out of a pair of wrinkly pants. We discuss ways you would iron clothes while still wearing them in zero gravity and whether Kevin would have a space valet. Musician Tommy James asks a question about his morning coffee and time travel. Comedian Nikki Glaser asks about aliens and how sure we are that they exist. We break down the composition of the universe, how common the ingredients for life are, and silicon-based life. How much of space has SETI even looked at? Plus, we explore if love is real. Do other species experience love? Could aliens experience love? Musician Jack White asks about how rare gold is in the universe and on the planet we live on. Learn about how gravity sorts elements and how much gold can be found in asteroids. Cam Johnson, of the Brooklyn Nets, asks if we can feel the different speeds of Earth’s rotation at different longitudes. Is there one part of the Earth that isn’t rotating? Thanks to our Patrons Larry Houghton, Marc-ids Foppen, Rob Love, Dominic Hemken, Brian Begnoche, josh lemasters, Mike Yin, Petchu Daniel, Jalal Dallo, and Jesse De La Rosa for supporting us this week. NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free. Check out our second channel, @StarTalkPlus Get the NEW StarTalk book, 'To Infinity and Beyond: A Journey of Cosmic Discovery' on Amazon: https://amzn.to/3PL0NFn Support us on Patreon: https://www.patreon.com/startalkradio FOLLOW or SUBSCRIBE to StarTalk: Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalk About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! #StarTalk #neildegrassetyson 00:00 - Introduction: Celebrity Questions 1:20 - Kevin Hart’s Space Pants 6:25 - Tommy James and The Shondells 10:15 - StarTalk Plus 11:00 - Nikki Glaser: Are There Aliens? 12:38 - Composition of the Universe 17:34 - How Much of Space Have We Looked for Aliens? 19:17 - Is Love Real? 25:50 - StarTalk Patreon 27:35 - Jack White’s Golden Question 30:45 - What Makes Something Rare? 34:18 - Sorting the Elements 38:38 - Cam Johnson & The Rotation of the Earth