Adam Frank: Alien Civilizations and the Search for Extraterrestrial Life | Lex Fridman Podcast #455

Adam Frank is an astrophysicist studying star systems and the search for extraterrestrial life and alien civilizations. Thank you for listening ❤ Check out our sponsors: https://lexfridman.com/sponsors/ep455-sb See below for timestamps, transcript, and to give feedback, submit questions, contact Lex, etc. *Transcript:* https://lexfridman.com/adam-frank-transcript *CONTACT LEX:* *Feedback* - give feedback to Lex: https://lexfridman.com/survey *AMA* - submit questions, videos or call-in: https://lexfridman.com/ama *Hiring* - join our team: https://lexfridman.com/hiring *Other* - other ways to get in touch: https://lexfridman.com/contact *EPISODE LINKS:* Adam's Website: https://adamfrankscience.com Adam's X: https://x.com/adamfrank4 Adam's Instagram: https://instagram.com/adamfrankscience Adam's Books: The Little Book of Aliens: https://amzn.to/3OTX1rP Light of the Stars: https://amzn.to/4iMKC6C The Blind Spot: https://amzn.to/4gOCe4K The Constant Fire: https://amzn.to/3ZVnxX4 *SPONSORS:* To support this podcast, check out our sponsors & get discounts: *Encord:* AI tooling for annotation & data management. Go to https://lexfridman.com/s/encord-ep455-sb *Eight Sleep:* Temp-controlled smart mattress cover. Go to https://lexfridman.com/s/eight_sleep-ep455-sb *Shopify:* Sell stuff online. Go to https://lexfridman.com/s/shopify-ep455-sb *NetSuite:* Business management software. Go to https://lexfridman.com/s/netsuite-ep455-sb *BetterHelp:* Online therapy and counseling. Go to https://lexfridman.com/s/betterhelp-ep455-sb *Notion:* Note-taking and team collaboration. Go to https://lexfridman.com/s/notion-ep455-sb *LMNT:* Zero-sugar electrolyte drink mix. Go to https://lexfridman.com/s/lmnt-ep455-sb *AG1:* All-in-one daily nutrition drinks. Go to https://lexfridman.com/s/ag1-ep455-sb *OUTLINE:* 0:00 - Introduction 1:58 - Planet formation 7:08 - Plate tectonics 14:30 - Extinction events 18:41 - Biosphere 21:39 - Technosphere 25:53 - Emergence of intelligence 32:06 - Drake equation 36:20 - Exoplanets 39:04 - Habitable zones 42:06 - Fermi Paradox 51:04 - Alien civilizations 1:00:32 - Colonizing Mars 1:12:48 - Search for aliens 1:29:13 - Alien megastructures 1:35:19 - Kardashev scale 1:40:32 - Detecting aliens 1:47:14 - Warp drives 1:53:21 - Cryogenics 1:56:39 - What aliens look like 2:05:24 - Alien contact 2:16:29 - UFO sightings 2:28:14 - Physics of life 2:54:05 - Nature of time 3:10:29 - Cognition 3:14:53 - Mortality *PODCAST LINKS:* - Podcast Website: https://lexfridman.com/podcast - Apple Podcasts: https://apple.co/2lwqZIr - Spotify: https://spoti.fi/2nEwCF8 - RSS: https://lexfridman.com/feed/podcast/ - Podcast Playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4 - Clips Channel: https://www.youtube.com/lexclips *SOCIAL LINKS:* - X: https://x.com/lexfridman - Instagram: https://instagram.com/lexfridman - TikTok: https://tiktok.com/@lexfridman - LinkedIn: https://linkedin.com/in/lexfridman - Facebook: https://facebook.com/lexfridman - Patreon: https://patreon.com/lexfridman - Telegram: https://t.me/lexfridman - Reddit: https://reddit.com/r/lexfridman