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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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11:10
Learn about the standard model of particle physics, the most accurate physical theory yet.
10:36
One paper reports on a new particle outside the standard model: the sterile neutrino.
10:38
Forget oil. There’s another natural resource that’s never been touched, Asteroids.
11:37
Nothing can escape from below the event horizon- not matter, light, or even information.
11:03
Nothing can escape from below the event horizon- not matter, light, or even information.
10:06
Is the entire history of the universe perfectly knowable? Or has information been lost?
9:38
Flawed conservation laws are consequences of a much deeper principle: Noether’s theorem.
8:47
New Gaia mission data has dramatically changed how we understand our own galaxy.
8:33
We can now see that the Milky Way is swarming with tens of thousands of black holes.
8:36
We’re going to need a gravitational wave observatory - in fact, we've already built one.