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PBS Space Time
How Astrophysics Can Literally Save the World
Season 10
Episode 37
Giant space rocks are definitely going to hit the Earth again. We actually do know how to deflect them, but only if we find them and correctly assess their risk. But the solar system is a chaotic place. How is it even possible to tell if a space rock will one day collide with the Earth?
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19:01
How to build a particle collider the size of the solar system.

12:39
One of the most important reasons we go to space is to know our own planet better.

17:14
Can something that exists be bad science?

18:56
It may be that our very DNA inherited its twist from the underlying handedness of reality.

17:21
Did God have any choice in creating the world? So asked Albert Einstein

18:19
What if, just before we reach the bottom, we find out that reductionism fails?

19:03
The biggest news in cosmology in recent years is that dark energy may be fading away.

18:50
Does this also explain why there are no aliens?

16:58
Quantum energy teleportation may be as close as we get to transporter beams. But how close is that?

14:50
Why is there any matter in the universe? A new antimatter breakthrough at LHC holds clues.

16:30
There’s an extremely good chance that Earth once did have a ring system.

15:58
Did you know that many of us have up to 4% neanderthal DNA?