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Can We Cool the Planet? Promo

As global temperatures rise, scientists are exploring solutions from planting trees to sucking carbon out of the air to geoengineering. But would they work? And what are the risks of engineering Earth's climate?
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Preview Season 47 Episode 16 Length 00:28 Premiere: 10/28/20

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signature image of Sam Claflin as Edmond Dantès (the Count) standing with a ship's sail behind him. Tune in and stream informationsignature image of Sam Claflin as Edmond Dantès (the Count) standing on a rock looking back over his shoulder as a wave crashes in front of him. Tune in and stream information

Season 47 Episodes

Cat Tales

S47 E3 Length 53:21 Premiere Date 02/19/20

Polar Extremes

S47 E1 Length 1:52:46 Premiere Date 02/05/20

Can We Cool the Planet? Promo

Preview Length 00:28 Premiere Date 10/28/20

How Much Coal Do People Burn Each Year?

Clip Length 02:13 Premiere Date 10/28/20

How Much Coal do People Burn Each Year?

Clip Length 02:13 Premiere Date 10/28/20

What is Solar Geoengineering and Why is it Controversial?

Clip Length 04:16 Premiere Date 10/28/20

What is Solar Geoengineering and Why is it Controversial?

Clip Length 04:16 Premiere Date 10/28/20

Meet the NASA Scientist Who Uses Lasers to Study Forests

Clip Length 04:05 Premiere Date 10/28/20

Can Geoengineering “Undo” Climate Change?

Clip Length 04:41 Premiere Date 06/24/20

Cutting our Greenhouse Gas Emissions to Zero

Clip Length 04:52 Premiere Date 06/19/20

Three Solutions That Can Slow or Stop Climate Change

Clip Length 04:21 Premiere Date 06/04/20

What is it Like to Live in Antarctica?

Clip Length 09:41 Premiere Date 02/26/20

Why is this Antarctic Glacier “Bleeding?”

Clip Length 10:00 Premiere Date 02/11/20

How Antarctica’s Cutest Baby Seals Grow Up

Clip Length 10:50 Premiere Date 02/05/20

Antarctica: Journey to the Bottom of the Earth

Clip Length 14:11 Premiere Date 01/29/20

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Decoding the Universe: Cosmos - S51 E8

Trace groundbreaking discoveries in space research and exploration and follow the teams trying to solve two mysteries in cosmology - dark matter and dark energy.

  • Wednesday May 6, 2026 9:00 pm ET on KET
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Decoding the Universe: Quantum - S51 E14

Discover the world of the subatomic realm in the quantum universe.

  • Wednesday May 13, 2026 9:00 pm ET on KET
  • Wednesday May 13, 2026 8:00 pm CT on KET
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When Whales Could Walk - S51 E1

Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.

  • Wednesday May 20, 2026 9:00 pm ET on KET
  • Wednesday May 20, 2026 8:00 pm CT on KET
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  • Tuesday May 26, 2026 1:00 am ET on KET2
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Great Mammoth Mystery - S49 E3

Sir David Attenborough explores a unique site in southern England with rare traces of Ice Age mammoths and Neanderthals. How did humans survive the frigid climate, and did they have the tools and talent to hunt the giant beasts?

  • Wednesday May 27, 2026 9:00 pm ET on KET
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Athens: Birth of Democracy - S53 E7

  • Tuesday May 5, 2026 1:00 am ET on KET2
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Rain Bombs - S53 E5

  • Tuesday April 28, 2026 1:00 am ET on KET2
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Return to the Moon - S53 E8

  • Tuesday April 21, 2026 1:00 am ET on KET2
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Your Brain: Who's in Control? - S50 E10

  • Tuesday April 14, 2026 1:00 am ET on KET2
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Your Brain: Perception Deception - S50 E9

  • Tuesday April 7, 2026 1:00 am ET on KET2
  • Tuesday April 7, 2026 12:00 am CT on KET2
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