David Kipping is an astronomer at Columbia University, director of the Cool Worlds Lab, and host of the Cool Worlds YouTube channel. Please support this podcast by checking out our sponsors: - SimpliSafe: https://simplisafe.com/lex - Shopify: https://shopify.com/lex to get free trial - ExpressVPN: https://expressvpn.com/lexpod to get 3 months free EPISODE LINKS: David's Twitter: https://twitter.com/david_kipping David's YouTube: null Cool Worlds Lab: https://coolworldslab.com/ PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ Full episodes playlist:    • Lex Fridman Podcast   Clips playlist:    • Lex Fridman Podcast Clips   OUTLINE: 0:00 - Introduction 1:41 - Habitable exoplanets 12:01 - Alien life in our Solar System 23:51 - Starship 27:59 - James Webb Space Telescope 41:18 - Binary planets 51:34 - Exomoons and Kepler-1625b 1:05:04 - Discoveries of alien life 1:18:46 - Aliens 2:05:14 - Oort clouds 2:16:00 - Future of astronomy 2:29:15 - Alpha Centauri 2:41:33 - Kardashev scale 2:53:12 - AI and space exploration 3:10:07 - Great Filter 3:21:22 - Colonization of Mars 3:28:06 - Simulation hypothesis 3:40:18 - Advice for young people 3:44:36 - Meaning of life SOCIAL: - Twitter: https://twitter.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - Medium: https://medium.com/@lexfridman - Reddit: https://reddit.com/r/lexfridman - Support on Patreon: https://www.patreon.com/lexfridman