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The Crisis in Cosmology

Season 5 Episode 9 | 13m 17s

The search for a single number: the hubble constant, which is the rate of expansion of our universe, has consumed astronomers for generations. Finally, two powerful and independent methods have refined its measurement to unprecedented precision. The only problem is that they don’t agree. This calls into question some of our most basic assumptions about the universe.

Aired: 01/22/19
Extras
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?
What if aliens are deliberately keeping quiet for fear that they might be destroyed?
So what exactly is an EMP, and how dangerous are they?
The terrible singularity at the heart of the black hole may be no more.
Stephen Hawking's most famous prediction: the theory of Hawking Radiation.
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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?
What if aliens are deliberately keeping quiet for fear that they might be destroyed?
So what exactly is an EMP, and how dangerous are they?
The terrible singularity at the heart of the black hole may be no more.
Stephen Hawking's most famous prediction: the theory of Hawking Radiation.