#137 – Alex Filippenko: Supernovae, Dark Energy, Aliens & the Expanding Universe

Alex Filippenko is an astrophysicist and professor of astronomy at Berkeley. Please support this podcast by checking out our sponsors: - Neuro: https://www.getneuro.com and use code LEX to get 15% off - BetterHelp: https://betterhelp.com/lex to get 10% off - MasterClass: https://masterclass.com/lex to get 15% off annual sub - Cash App: https://cash.app/ and use code LexPodcast to get $10 EPISODE LINKS: Alex's Website: https://astro.berkeley.edu/people/alex-filippenko/ 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/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/LexFridmanPage - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (06:36) - Universe expansion (08:00) - Dark energy (15:28) - Scientific revolutions (27:18) - Asteroid hitting Earth (30:50) - Giant solar flares and the power grid (37:50) - Elon Musk and space exploration (42:41) - Exoplanets (50:03) - Traveling close to the speed of light (52:13) - Traveling faster than the speed of light (1:00:39) - Intelligent life in the universe (1:04:14) - Fermi Paradox (1:13:52) - Finding alien life would be bad news (1:18:49) - UFO sightings (1:31:58) - Universe expansion speed (1:36:42) - The universe is infinite (1:40:58) - What happened before the Big Bang? (1:45:14) - Roger Penrose (1:48:48) - Nobel Prize for the accelerating universe (2:10:23) - Supernova (2:21:47) - The greatest story ever told (2:25:44) - Richard Feynman (2:32:37) - Meaning of life

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