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#137 – Alex Filippenko: Supernovae, Dark Energy, Aliens & the Expanding Universe
Lex Fridman Podcast
The Nobel Prize for the Accelerating Expansion of the Universe
The Nobel Prize was given for the discovery of the accelerating expansion of the universe. In the first 9 billion years, it was slowing down but in the last 5 billion years has been speeding up. This is because galaxies have visible matter which is gravitationally attractive and dark matter of an unknown sort that holds them together.
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