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#137 – Alex Filippenko: Supernovae, Dark Energy, Aliens & the Expanding Universe
Lex Fridman Podcast
The Dark Energy Is a New Energy That Fills Space
We're getting progressively better observational constraints. Different theories of what it might be, predict different sorts of behavior for the evolution of the universe. But one can't prove that that's what it is to an arbitrary number of decimal places. And so then it could be a field, some sort of a new energy,. like electromagnetism, but very different from light, that fills space.
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