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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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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...
12:51
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13:28
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20:15
To travel the stars without faster than light travel we’re going to need a generation ship.
15:36
The Moon: humanity’s first destination beyond our atmosphere.
14:28
Is our 3-D universe is just the inward projection of an infinitely distant boundary?