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What Happened Before the Big Bang?

Season 5 Episode 29 | 10m 23s

We define the Big Bang as the extremely hot, dense, rapidly expanding universe that is described by Einstein’s equations. That picture of the universe is very solid down to about a trillionth of a second after the supposed beginning of time. We can make good guesses down to about 10^-30th of a second. But before that?

Aired: 08/18/19
Extras
Just how much stronger is this year’s solar activity going to get?
So you’ve decided to jump into a black hole...
We only recently figured out where cosmic rays are coming from.
Black hole complementarity may force us to rethink what it means to say that it exists.
To travel the stars without faster than light travel we’re going to need a generation ship.
Today we are jumping into a black hole. Again.
The Moon: humanity’s first destination beyond our atmosphere.
So how did humans figure out the solar system? Eclipses!
Is gravity just an emergent effect of entropy?
Is our 3-D universe is just the inward projection of an infinitely distant boundary?
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Just how much stronger is this year’s solar activity going to get?
So you’ve decided to jump into a black hole...
We only recently figured out where cosmic rays are coming from.
Black hole complementarity may force us to rethink what it means to say that it exists.
To travel the stars without faster than light travel we’re going to need a generation ship.
Today we are jumping into a black hole. Again.
The Moon: humanity’s first destination beyond our atmosphere.
So how did humans figure out the solar system? Eclipses!
Is gravity just an emergent effect of entropy?
Is our 3-D universe is just the inward projection of an infinitely distant boundary?