#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