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PBS Space Time
Is Earth's Magnetic Field Reversing?
Season 5
Episode 31
Earth’s magnetic field protects us from deadly space radiation. What if it were drastically weakened, as a precursor to flipping upside down? I mean, it has before … many, many times..
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15:14
Is Dark Energy Getting Weaker?
16:08
Here’s the story we like to tell about the beginning of the universe.
17:44
We’ve never seen a TDE in the Milky Way, but we’ve seen them in distant galaxies.
16:51
Let’s talk about quantum gravity experiments that can be done here on Earth!
19:25
What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?
17:02
Have we reached the end of the line of discoverable elements?
15:32
Can we change the color of a black hole?
18:26
Learn about Nobel laureate Roger Penrose's idea of how consciousness is caused by quantum processes.
16:28
Faster than light travel may produce gravitational waves that we could see here on Earth.
20:07
All particles belong to two large groups: fermions and bosons.
16:11
Just how much stronger is this year’s solar activity going to get?
17:25
So you’ve decided to jump into a black hole...