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Ghost Particles Are Exposing Hidden Black Holes. They Just Won a Nobel Prize.
Season 12
Episode 2
17:28
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PBS Space Time
Will the Universe Expand Forever?
Throughout history, there has been much speculation about what the fate of the universe would be. Many theorized that the universe would eventually succumb to the pull of gravity, and reverse its expansion in what was being called ‘The Big Crunch.’ However, with the help of mathematical equations from Newton, Einstein, and Alexander Friedmann, we now have an answer.
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10:44
How did our chaotic universe generate the extreme complexity we see in life?
10:52
A black hole can never catch up to you, but the Unruh radiation it generates sure can.
9:15
The Andromeda galaxy will inevitably collide with our own Milky Way. Will that be the end?
9:03
What do the first stars, dark matter, and superior siege engines have in common?
9:16
Will the future of space exploration be guided by public or private entities?
11:20
Energy is the most powerful and useful concept in all of physics, but what exactly is it?
7:42
What happens when a star eats its planets? Find out on today’s Space Time Journal Club.
9:55
The Sun is getting brighter and the habitable planets in our solar system are changing.
12:03
What is Horizon radiation? How does it apply to the Unruh Effect and Hawking Radiation?