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PBS Space Time

Does Timescapes Disprove Dark Energy?

Season 10 Episode 32

The universe is expanding and that expansion is accelerating under the power of dark energy and eventually all matter and energy will be dispersed over such unthinkable distances that nothing can stop space from blowing up infinitely. Unless of course cosmologists blundered and dark energy doesn't even exist. Then it's back to the drawing board.

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Season
Could The Universe Be Inside A Black Hole?
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We look into what is inside a black hole.
Where Is The Center of The Universe?
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We ask and explore If the universe has a center and where it could be.
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We explore and challenge electric charge's fundamental property and if it sticks.
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Are Cosmic Strings Cracks in the Universe?
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Cosmic strings could be the most most bizarre undiscovered entities to actually exist.
Is The Wave Function The Building Block of Reality?
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We explore Objective Collapse Theories in a down to earth objective way.
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We explore how a black hole manages to communicate its gravitational force.
How To Build The Universe in a Computer
12:26
We explore the possibility of building a universe and all the limitations it presents.
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Let’s learn how to cheat the universe.
How to Find Alien Dyson Spheres
14:28
Time to update you on the hunt for galactic empires.
What Happens If A Black Hole Hits Earth?
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This is what happens if microscopic primordial black holes could actually hit Earth.
Are Black Holes Actually Fuzzballs?
14:07
Black holes of string theory - fuzzballs - are perhaps even weirder than the regular type.
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