Skip to content
Lex Fridman PodcastLex Fridman Podcast

Alex Filippenko: Supernovae, Dark Energy, Aliens & the Expanding Universe | Lex Fridman Podcast #137

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/ Full episodes playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4 Clips playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOeciFP3CBCIEElOJeitOr41 OUTLINE: 0:00 - Introduction 2:08 - Universe expansion 3:32 - Dark energy 11:00 - Scientific revolutions 22:50 - Asteroid hitting Earth 26:22 - Giant solar flares and the power grid 33:22 - Elon Musk and space exploration 38:13 - Exoplanets 45:35 - Traveling close to the speed of light 47:45 - Traveling faster than the speed of light 56:11 - Intelligent life in the universe 59:46 - Fermi Paradox 1:09:24 - Finding alien life would be bad news 1:14:20 - UFO sightings 1:27:30 - Universe expansion speed 1:32:14 - The universe is infinite 1:36:30 - What happened before the Big Bang? 1:40:46 - Roger Penrose 1:44:20 - Nobel Prize for the accelerating universe 2:05:55 - Supernova 2:17:19 - The greatest story ever told 2:21:16 - Richard Feynman 2:28:09 - Meaning of life CONNECT: - Subscribe to this YouTube channel - Twitter: https://twitter.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/LexFridmanPage - Instagram: https://www.instagram.com/lexfridman - Medium: https://medium.com/@lexfridman - Support on Patreon: https://www.patreon.com/lexfridman

Lex FridmanhostAlex Filippenkoguest
Nov 8, 20202h 35mWatch on YouTube ↗

CHAPTERS

  1. 0:00 – 2:08

    Introduction

  2. 2:08 – 3:32

    Universe expansion

  3. 3:32 – 11:00

    Dark energy

  4. 11:00 – 22:50

    Scientific revolutions

  5. 22:50 – 26:22

    Asteroid hitting Earth

  6. 26:22 – 33:22

    Giant solar flares and the power grid

  7. 33:22 – 38:13

    Elon Musk and space exploration

  8. 38:13 – 45:35

    Exoplanets

  9. 45:35 – 47:45

    Traveling close to the speed of light

  10. 47:45 – 56:11

    Traveling faster than the speed of light

  11. 56:11 – 59:46

    Intelligent life in the universe

  12. 59:46 – 1:09:24

    Fermi Paradox

  13. 1:09:24 – 1:14:20

    Finding alien life would be bad news

  14. 1:14:20 – 1:27:30

    UFO sightings

  15. 1:27:30 – 1:32:14

    Universe expansion speed

  16. 1:32:14 – 1:36:30

    The universe is infinite

  17. 1:36:30 – 1:40:46

    What happened before the Big Bang?

  18. 1:40:46 – 1:44:20

    Roger Penrose

  19. 1:44:20 – 2:05:55

    Nobel Prize for the accelerating universe

  20. 2:05:55 – 2:17:19

    Supernova

  21. 2:17:19 – 2:21:16

    The greatest story ever told

  22. 2:21:16 – 2:28:09

    Richard Feynman

  23. 2:28:09 – 2:35:47

    Meaning of life

Get more out of YouTube videos.

High quality summaries for YouTube videos. Accurate transcripts to search & find moments. Powered by ChatGPT & Claude AI.

Add to Chrome