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Why So Many Cloud Types?

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Length 03:35 Premiere: 06/30/13

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Season Episodes

Star Chasers of Senegal
S50 E2 Length 53:20 Premiere Date 02/08/23

London Super Tunnel
S50 E1 Length 53:20 Premiere Date 02/01/23

Surviving an Elevator Fall
Clip Length 01:31 Premiere Date 08/23/10

Shabbat Elevator
Clip Length 02:42 Premiere Date 08/23/10

Six Questions with David Pogue
Clip Length 02:33 Premiere Date 01/04/11

A Mind for Music
Clip Length 04:05 Premiere Date 02/09/11

Modeling a Comet Airburst
Clip Length 03:20 Premiere Date 02/09/11

Green Energy in China
Clip Length 05:09 Premiere Date 04/12/11

A Strict Carbon Diet
Clip Length 02:58 Premiere Date 04/12/11

Brian Greene Answers Your Questions
Clip Length 01:07 Premiere Date 08/02/11

The 9/11 Memorial Mock-Up
Clip Length 01:54 Premiere Date 08/24/11

Solving an Engineering Problem
Clip Length 02:49 Premiere Date 08/24/11

Walls of Glass
Clip Length 02:29 Premiere Date 08/24/11

The Memorial Plaques
Clip Length 02:31 Premiere Date 08/24/11

Rebuilding 7 World Trade Center
Clip Length 01:48 Premiere Date 08/31/11

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London Super Tunnel

Construction teams confront immense challenges as they hurry to build a new subterranean railroad under London: the Elizabeth Line.

  • Tuesday February 7, 2023 7:00 pm ET on KETWORLD
  • Tuesday February 7, 2023 6:00 pm CT on KETWORLD
  • Wednesday February 8, 2023 12:00 am ET on KETWORLD
  • Tuesday February 7, 2023 11:00 pm CT on KETWORLD
  • Wednesday February 8, 2023 8:00 am ET on KETWORLD
  • Wednesday February 8, 2023 7:00 am CT on KETWORLD

Star Chasers of Senegal

A visionary astronomer in West Africa attempts a high-stakes observation of a distant asteroid vital to a NASA mission.

  • Wednesday February 8, 2023 9:00 pm ET on KET
  • Wednesday February 8, 2023 8:00 pm CT on KET
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Ancient Builders of the Amazon

Discoveries reveal traces of ancient civilizations that flourished for centuries with prehistoric populations in the Amazon.

  • Wednesday February 15, 2023 9:00 pm ET on KET
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New Eye on the Universe

Scientists discover how the first stars and galaxies were formed and the roles of supermassive black holes and dark matter.

  • Wednesday February 22, 2023 9:00 pm ET on KET
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Dog Tales

Premiered On: 02/12/2020

Dogs have long been dependable companions, but it wasn't always that way. Researchers reveal how humans have tamed fearsome canines over tens of thousands of years and how modern dog intelligence and behaviors have made them indispensable companions.

  • Wednesday March 1, 2023 9:00 pm ET on KET
  • Wednesday March 1, 2023 8:00 pm CT on KET
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  • Thursday March 2, 2023 4:00 pm CT on KET
  • Friday March 3, 2023 2:00 am ET on KET
  • Friday March 3, 2023 1:00 am CT on KET

Cat Tales

Premiered On: 02/19/2020

Learn what science can tell us about our relationship with cats. Did humans ever really domesticate felines?

  • Thursday March 9, 2023 5:00 pm ET on KET
  • Thursday March 9, 2023 4:00 pm CT on KET
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London Super Tunnel - S50 E1

  • Tuesday February 7, 2023 12:00 am ET on KET2
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  • Wednesday February 1, 2023 8:00 pm CT on KET

Beyond the Elements: Life - S47 E19

  • Wednesday February 1, 2023 8:00 am ET on KETWORLD
  • Wednesday February 1, 2023 7:00 am CT on KETWORLD
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Beyond the Elements: Indestructible - S47 E18

  • Wednesday January 25, 2023 8:00 am ET on KETWORLD
  • Wednesday January 25, 2023 7:00 am CT on KETWORLD
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Beyond the Elements: Reactions - S47 E17

  • Wednesday January 18, 2023 8:00 am ET on KETWORLD
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Creatures of Light - S43 E9

  • Tuesday January 10, 2023 5:00 am ET on KET2
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