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

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

Lex Fridman Podcast vor 5 Jahren

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.

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2:40:26

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:

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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

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– 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