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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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9:14
We can now map the interiors of stars by “listening” to their seismic wave harmonies.
9:48
Find out about the last time and the next time the Earth will be hit by a Gamma-ray Burst.
9:06
We were recently visited by a traveler from outside our solar system: 'Oumuamua.
11:19
Large-scale phenomena can give us incredible insights into the world of quantum mechanics.
6:00
Let’s take a moment to remember the selfless sacrifices made by some robotic explorers.
9:45
Let’s talk about the mysterious zero-point energy and what it really can and can’t do.
9:17
If quantum field theory is right about vacuum energy, our universe shouldn't exist.
11:02
Astronomers haven't been able to find up to half of the baryonic matter in the universe.
11:29
It turns out that "nothing" is one of the most interesting somethings in all of physics.
