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PBS Space Time
Is Dark Energy Getting Stronger?
Season 5
Episode 15
The power of Dark Energy may be increasing as the universe ages. Subtle clues are emerging that the accepted model for the nature of dark energy and dark matter may not be all that. We saw the first such clue recently in our recent episode on the Crisis in Cosmology. Today we’re doing a Space Time Journal Club to reveal another clue
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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.