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PBS Space Time
The Supernova At The End of Time
Season 7
Episode 2
It looks like the universe is going to end with a series of catastrophic explosions. The very, very long story short is that the universe ends in heat death, as it approaches maximum entropy, and its eternal exponential expansion drives it to effective utter emptiness and absolute cold. But new calculations have revealed we may be able to look forward to one last source of astrophysical cataclysm
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12:51
We only recently figured out where cosmic rays are coming from.

13:28
Black hole complementarity may force us to rethink what it means to say that it exists.

20:15
To travel the stars without faster than light travel we’re going to need a generation ship.

16:19
Today we are jumping into a black hole. Again.

15:36
The Moon: humanity’s first destination beyond our atmosphere.

15:07
So how did humans figure out the solar system? Eclipses!

15:02
Is gravity just an emergent effect of entropy?

14:28
Is our 3-D universe is just the inward projection of an infinitely distant boundary?

14:12
What if aliens are deliberately keeping quiet for fear that they might be destroyed?

15:13
So what exactly is an EMP, and how dangerous are they?

14:44
The terrible singularity at the heart of the black hole may be no more.

14:33
We may have solved the mysterious origins of supermassive black holes in our universe.