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Saving Notre Dame’s Iconic Stone Vaulting

The water used to fight a fire at Paris’s iconic Notre Dame Cathedral and months of rainwater damaged the Cathedrals’ stonework but a team of geologist have a plan to save it.
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Clip Season 49 Episode 13 Length 02:53 Premiere: 10/05/22

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Season 49 Episodes

Ice Age Footprints
S49 E9 Length 53:43 Premiere Date 05/25/22

Why Ships Crash
S49 E8 Length 53:20 Premiere Date 05/18/22

Rebuilding Notre Dame
Preview Length 00:30 Premiere Date 10/05/22

Restoring Notre Dame's Iconic Stained Glass
Clip Length 03:00 Premiere Date 10/05/22

Saving Notre Dame’s Iconic Stone Vaulting
Clip Length 02:53 Premiere Date 10/05/22

How Seaweed May Help Revive Our Oceans
Clip Length 04:39 Premiere Date 08/18/22

The False Promise of Cloning Your Pet
Clip Length 06:37 Premiere Date 08/16/22

This Device Smells Diseases by Imitating a Dog's Nose
Clip Length 04:43 Premiere Date 05/26/22

War Threatens Ukrainian Nuclear Power Plants
Clip Length 07:09 Premiere Date 04/04/22

Animal-to-Human Organ Transplants
Clip Length 04:59 Premiere Date 03/02/22

What is 5G, and is it Safe to Use on Planes?
Clip Length 05:39 Premiere Date 02/16/22

Introducing NOVA's Financial Lab
Clip Length 01:22 Premiere Date 02/11/22

Can South Carolina's Salt Marshes Be Saved?
Clip Length 08:27 Premiere Date 01/26/22

From Prison to Careers in STEM
Clip Length 08:12 Premiere Date 01/12/22

Could Antiviral Pills Change the Course of the Pandemic?
Clip Length 08:12 Premiere Date 01/05/22

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Your Brain: Who's in Control? - S50 E10

Dive into the latest research on the subconscious to see what's really driving the decisions you make.

  • Sunday April 12, 2026 7:00 pm ET on KET2
  • Sunday April 12, 2026 6:00 pm CT on KET2
  • Tuesday April 14, 2026 1:00 am ET on KET2
  • Tuesday April 14, 2026 12:00 am CT on KET2

Return to the Moon - S53 E8

Follow the Artemis II engineers and crew on a perilous 10-day journey to orbit the Moon.

  • Wednesday April 15, 2026 9:00 pm ET on KET
  • Wednesday April 15, 2026 8:00 pm CT on KET
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Rain Bombs - S53 E5

Scientists race to understand catastrophic weather events known as "rain bombs" and how we can protect ourselves from their growing power.

  • Wednesday April 22, 2026 9:00 pm ET on KET
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Athens: Birth of Democracy - S53 E7

Archaeologists investigate the dramatic origins of democracy in ancient Greece 2,500 years ago. Mass graves and ancient ruins where tyrants were murdered shine new light on the birth of a revolutionary form of government.

  • Wednesday April 29, 2026 9:00 pm ET on KET
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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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Your Brain: Who's in Control? - S50 E10

  • Friday April 10, 2026 2:00 am ET on KET
  • Friday April 10, 2026 1:00 am CT on KET
  • Thursday April 9, 2026 5:00 pm ET on KET
  • Thursday April 9, 2026 4:00 pm CT on KET
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  • Wednesday April 8, 2026 8:00 pm CT on KET

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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  • Wednesday April 1, 2026 9:27 pm ET on KET
  • Wednesday April 1, 2026 8:27 pm CT on KET

Baltimore Bridge Collapse - S52 E6

  • Tuesday March 31, 2026 5:00 am ET on KET2
  • Tuesday March 31, 2026 4:00 am CT on KET2
  • Tuesday March 31, 2026 12:00 am ET on KET2
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Pompeii's Secret Underworld - S52 E5

  • Tuesday March 24, 2026 5:00 am ET on KET2
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The Planets: Mars - S46 E13

  • Thursday March 12, 2026 4:30 pm ET on KET
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