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PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down the both the basic and incredibly complex sides of space and time.

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Full Episodes
Season
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Episode
11:13
PBS Space Time

How Do We Know What Stars Are Made Of?

This how we finally figured them out.
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Episode
12:41
PBS Space Time

Does Gravity Require Extra Dimensions?

Does gravity require extra dimensions?
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Episode
14:21
PBS Space Time

Mapping the Multiverse

This is a map of the multiverse.
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Episode
13:52
PBS Space Time

How Luminiferous Aether Led to Relativity

How Luminiferous Aether led to Relativity.
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Episode
14:01
PBS Space Time

How We Know The Universe is Ancient

How do you learn the age of the universe when there’s no trace left of its beginnings?
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Episode
14:31
PBS Space Time

Will Wormholes Allow Fast Interstellar Travel?

When do we get to wormhole ourselves out of here?
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Episode
13:31
PBS Space Time

Was the Milky Way a Quasar?

Recently we discovered that its violent past was much more recent than we thought.
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Episode
13:38
PBS Space Time

How We Know The Earth Is Ancient

How can we be sure about timescales so far beyond the capacity for human intuition?
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Episode
11:54
PBS Space Time

What’s On The Other Side Of A Black Hole?

Normal maps are useless inside black holes.
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Episode
12:49
PBS Space Time

How Black Holes Spin Space Time

If there’s one thing cooler than a black hole it’s a rotating black hole.
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Science & Nature
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Preview
0:30
Extra Life: A Short History of Living Longer

Preview

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Clip
4:38
Greta Thunberg: A Year to Change the World

Direct Air Capture

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Clip
4:23
Greta Thunberg: A Year to Change the World

COVID-19's Impact on Climate

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Clip
3:55
Greta Thunberg: A Year to Change the World

Reindeer Face Starvation

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Clip
4:25
Greta Thunberg: A Year to Change the World

Athabasca Glacier