2min chapter

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#257 – Brian Keating: Cosmology, Astrophysics, Aliens & Losing the Nobel Prize

Lex Fridman Podcast

CHAPTER

The Universe Is Bigger Than It Is Older

The universe has been expanding for 13.8 billion years with no sign of slowing down yet. We can see things at 45 billion light years distance in that direction, just turning our telescopes 180 degrees away. Is there another universe beyond that? We don't know. There's not only one, there's an infinite number of them.

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