Skip to Main Content

One World Trade Center's glass facade may look fragile, but it is extraordinarily tough.
Clip Length 02:29 Premiere: 08/24/11

Recent Episodes

Sponsored by:

Clips & Previews

Specials

Season Episodes

Your Brain: Who's in Control?
S50 E10 Length 53:31 Premiere Date 05/24/23

Your Brain: Perception Deception
S50 E9 Length 53:30 Premiere Date 05/17/23

Hidden Volcano Abyss
S50 E8 Length 53:20 Premiere Date 05/10/23

Saving the Right Whale
S50 E7 Length 53:31 Premiere Date 05/03/23

Chasing Carbon Zero
S50 E6 Length 53:31 Premiere Date 04/26/23

Weathering the Future
S50 E5 Length 53:31 Premiere Date 04/12/23

New Eye on the Universe
S50 E4 Length 53:31 Premiere Date 02/22/23

Ancient Builders of the Amazon
S50 E3 Length 53:22 Premiere Date 02/15/23

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

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

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

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

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

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

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

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

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

See All Episodes

caret down

TV Schedules

Jump to Recent Airdates

Upcoming

Operation Lighthouse Rescue - S43 E13

Premiered On: 05/04/2016

Engineers race to rescue the Gay Head Lighthouse, a historic landmark perched high on the cliffs of Martha's Vineyard, soon to become the next victim of the ocean's erosion of the island's cliffs.

  • Thursday September 28, 2023 5:00 pm ET on KET
  • Thursday September 28, 2023 4:00 pm CT on KET
  • Friday September 29, 2023 2:00 am ET on KET
  • Friday September 29, 2023 1:00 am CT on KET
  • Sunday October 1, 2023 7:00 pm ET on KET2
  • Sunday October 1, 2023 6:00 pm CT on KET2
  • Monday October 2, 2023 5:00 am ET on KET2
  • Monday October 2, 2023 4:00 am CT on KET2
  • Tuesday October 3, 2023 12:00 am ET on KET2
  • Monday October 2, 2023 11:00 pm CT on KET2

Ancient Earth: Birth of the Sky - S50 E11

Discover how Earth transformed from a barren hellscape to a planet capable of sustaining life. Animation and science experts reveal how the blue sky came to be.

  • Wednesday October 4, 2023 9:00 pm ET on KET
  • Wednesday October 4, 2023 8:00 pm CT on KET
  • Thursday October 5, 2023 5:00 pm ET on KET
  • Thursday October 5, 2023 4:00 pm CT on KET
  • Friday October 6, 2023 2:00 am ET on KET
  • Friday October 6, 2023 1:00 am CT on KET
  • Sunday October 8, 2023 7:00 pm ET on KET2
  • Sunday October 8, 2023 6:00 pm CT on KET2
  • Monday October 9, 2023 5:00 am ET on KET2
  • Monday October 9, 2023 4:00 am CT on KET2
  • Tuesday October 10, 2023 12:00 am ET on KET2
  • Monday October 9, 2023 11:00 pm CT on KET2

Ancient Earth: Frozen - S50 E12

Scientists investigate how life evolved after a global freeze threatened its survival 700 million years ago.

  • Wednesday October 11, 2023 9:00 pm ET on KET
  • Wednesday October 11, 2023 8:00 pm CT on KET
  • Thursday October 12, 2023 5:00 pm ET on KET
  • Thursday October 12, 2023 4:00 pm CT on KET
  • Friday October 13, 2023 2:00 am ET on KET
  • Friday October 13, 2023 1:00 am CT on KET
  • Sunday October 15, 2023 7:00 pm ET on KET2
  • Sunday October 15, 2023 6:00 pm CT on KET2
  • Monday October 16, 2023 5:00 am ET on KET2
  • Monday October 16, 2023 4:00 am CT on KET2
  • Tuesday October 17, 2023 12:00 am ET on KET2
  • Monday October 16, 2023 11:00 pm CT on KET2

Ancient Earth: Life Rising - S50 E13

Discover how life made the leap to land, transforming a barren, rocky landscape into the lush, green world.

  • Wednesday October 18, 2023 9:00 pm ET on KET
  • Wednesday October 18, 2023 8:00 pm CT on KET
  • Friday October 20, 2023 2:00 am ET on KET
  • Friday October 20, 2023 1:00 am CT on KET
  • Sunday October 22, 2023 7:00 pm ET on KET2
  • Sunday October 22, 2023 6:00 pm CT on KET2
  • Monday October 23, 2023 5:00 am ET on KET2
  • Monday October 23, 2023 4:00 am CT on KET2
  • Tuesday October 24, 2023 12:00 am ET on KET2
  • Monday October 23, 2023 11:00 pm CT on KET2

Ancient Earth: Inferno - S50 E14

Scientists piece together geologic evidence from the past and clues from the Earth's ecosystems to determine how life made it through a cataclysmic extinction that wiped out about 90 percent of all species 252 million years ago.

  • Wednesday October 25, 2023 9:00 pm ET on KET
  • Wednesday October 25, 2023 8:00 pm CT on KET
  • Thursday October 26, 2023 5:00 pm ET on KET
  • Thursday October 26, 2023 4:00 pm CT on KET
  • Friday October 27, 2023 2:00 am ET on KET
  • Friday October 27, 2023 1:00 am CT on KET
  • Sunday October 29, 2023 7:00 pm ET on KET2
  • Sunday October 29, 2023 6:00 pm CT on KET2
Jump to Upcoming Airdates

Recent

Operation Lighthouse Rescue - S43 E13

  • Wednesday September 27, 2023 9:00 pm ET on KET
  • Wednesday September 27, 2023 8:00 pm CT on KET

London Super Tunnel - S50 E1

  • Wednesday September 27, 2023 8:00 am ET on KETWORLD
  • Wednesday September 27, 2023 7:00 am CT on KETWORLD
  • Wednesday September 27, 2023 12:00 am ET on KETWORLD
  • Tuesday September 26, 2023 11:00 pm CT on KETWORLD
  • Tuesday September 26, 2023 7:00 pm ET on KETWORLD
  • Tuesday September 26, 2023 6:00 pm CT on KETWORLD
  • Tuesday September 26, 2023 12:00 am ET on KET2
  • Monday September 25, 2023 11:00 pm CT on KET2
  • Monday September 25, 2023 5:00 am ET on KET2
  • Monday September 25, 2023 4:00 am CT on KET2
  • Sunday September 24, 2023 7:00 pm ET on KET2
  • Sunday September 24, 2023 6:00 pm CT on KET2
  • Friday September 22, 2023 2:00 am ET on KET
  • Friday September 22, 2023 1:00 am CT on KET
  • Thursday September 21, 2023 5:00 pm ET on KET
  • Thursday September 21, 2023 4:00 pm CT on KET
  • Wednesday September 20, 2023 9:00 pm ET on KET
  • Wednesday September 20, 2023 8:00 pm CT on KET

Rebuilding Notre Dame - S49 E13

  • Wednesday September 20, 2023 8:00 am ET on KETWORLD
  • Wednesday September 20, 2023 7:00 am CT on KETWORLD
  • Wednesday September 20, 2023 12:00 am ET on KETWORLD
  • Tuesday September 19, 2023 11:00 pm CT on KETWORLD
  • Tuesday September 19, 2023 7:00 pm ET on KETWORLD
  • Tuesday September 19, 2023 6:00 pm CT on KETWORLD
  • Tuesday September 19, 2023 12:00 am ET on KET2
  • Monday September 18, 2023 11:00 pm CT on KET2
  • Monday September 18, 2023 5:00 am ET on KET2
  • Monday September 18, 2023 4:00 am CT on KET2
  • Sunday September 17, 2023 7:00 pm ET on KET2
  • Sunday September 17, 2023 6:00 pm CT on KET2
  • Friday September 15, 2023 2:00 am ET on KET
  • Friday September 15, 2023 1:00 am CT on KET
  • Thursday September 14, 2023 5:00 pm ET on KET
  • Thursday September 14, 2023 4:00 pm CT on KET
  • Wednesday September 13, 2023 9:00 pm ET on KET
  • Wednesday September 13, 2023 8:00 pm CT on KET

Saving Venice - S49 E12

  • Wednesday September 13, 2023 8:00 am ET on KETWORLD
  • Wednesday September 13, 2023 7:00 am CT on KETWORLD
  • Wednesday September 13, 2023 12:00 am ET on KETWORLD
  • Tuesday September 12, 2023 11:00 pm CT on KETWORLD
  • Tuesday September 12, 2023 7:00 pm ET on KETWORLD
  • Tuesday September 12, 2023 6:00 pm CT on KETWORLD
  • Tuesday September 12, 2023 12:00 am ET on KET2
  • Monday September 11, 2023 11:00 pm CT on KET2
  • Monday September 11, 2023 5:00 am ET on KET2
  • Monday September 11, 2023 4:00 am CT on KET2
  • Sunday September 10, 2023 7:00 pm ET on KET2
  • Sunday September 10, 2023 6:00 pm CT on KET2
  • Friday September 8, 2023 2:00 am ET on KET
  • Friday September 8, 2023 1:00 am CT on KET
  • Thursday September 7, 2023 5:00 pm ET on KET
  • Thursday September 7, 2023 4:00 pm CT on KET
  • Wednesday September 6, 2023 9:00 pm ET on KET
  • Wednesday September 6, 2023 8:00 pm CT on KET

Sunken Ship Rescue - S42 E2

  • Wednesday September 6, 2023 9:00 am ET on KETWORLD
  • Wednesday September 6, 2023 8:00 am CT on KETWORLD
  • Wednesday September 6, 2023 1:00 am ET on KETWORLD
  • Wednesday September 6, 2023 12:00 am CT on KETWORLD
  • Tuesday September 5, 2023 8:00 pm ET on KETWORLD
  • Tuesday September 5, 2023 7:00 pm CT on KETWORLD
  • Monday September 4, 2023 5:00 am ET on KET2
  • Monday September 4, 2023 4:00 am CT on KET2
  • Thursday August 31, 2023 5:00 pm ET on KET
  • Thursday August 31, 2023 4:00 pm CT on KET

Arctic Ghost Ship - S42 E16

  • Wednesday September 6, 2023 8:00 am ET on KETWORLD
  • Wednesday September 6, 2023 7:00 am CT on KETWORLD
  • Wednesday September 6, 2023 12:00 am ET on KETWORLD
  • Tuesday September 5, 2023 11:00 pm CT on KETWORLD
  • Tuesday September 5, 2023 7:00 pm ET on KETWORLD
  • Tuesday September 5, 2023 6:00 pm CT on KETWORLD
  • Tuesday September 5, 2023 12:00 am ET on KET2
  • Monday September 4, 2023 11:00 pm CT on KET2
  • Sunday September 3, 2023 7:00 pm ET on KET2
  • Sunday September 3, 2023 6:00 pm CT on KET2
  • Friday September 1, 2023 2:00 am ET on KET
  • Friday September 1, 2023 1:00 am CT on KET
  • Wednesday August 30, 2023 9:00 pm ET on KET
  • Wednesday August 30, 2023 8:00 pm CT on KET

Killer Volcanoes - S44 E16

  • Wednesday August 30, 2023 10:00 am ET on KETWORLD
  • Wednesday August 30, 2023 9:00 am CT on KETWORLD
  • Wednesday August 30, 2023 2:00 am ET on KETWORLD
  • Wednesday August 30, 2023 1:00 am CT on KETWORLD
  • Tuesday August 29, 2023 9:00 pm ET on KETWORLD
  • Tuesday August 29, 2023 8:00 pm CT on KETWORLD

Killer Floods - S44 E18

  • Wednesday August 30, 2023 9:00 am ET on KETWORLD
  • Wednesday August 30, 2023 8:00 am CT on KETWORLD
  • Wednesday August 30, 2023 1:00 am ET on KETWORLD
  • Wednesday August 30, 2023 12:00 am CT on KETWORLD
  • Tuesday August 29, 2023 8:00 pm ET on KETWORLD
  • Tuesday August 29, 2023 7:00 pm CT on KETWORLD

Killer Hurricanes - S44 E17

  • Wednesday August 30, 2023 8:00 am ET on KETWORLD
  • Wednesday August 30, 2023 7:00 am CT on KETWORLD
  • Wednesday August 30, 2023 12:00 am ET on KETWORLD
  • Tuesday August 29, 2023 11:00 pm CT on KETWORLD
  • Tuesday August 29, 2023 7:00 pm ET on KETWORLD
  • Tuesday August 29, 2023 6:00 pm CT on KETWORLD
  • Tuesday August 29, 2023 12:00 am ET on KET2
  • Monday August 28, 2023 11:00 pm CT on KET2
  • Monday August 28, 2023 5:00 am ET on KET2
  • Monday August 28, 2023 4:00 am CT on KET2
  • Sunday August 27, 2023 7:00 pm ET on KET2
  • Sunday August 27, 2023 6:00 pm CT on KET2

Dog Tales - S47 E2

  • Monday August 28, 2023 4:00 am ET on KETWORLD
  • Monday August 28, 2023 3:00 am CT on KETWORLD
  • Sunday August 27, 2023 7:00 pm ET on KETWORLD
  • Sunday August 27, 2023 6:00 pm CT on KETWORLD
Top

Explore KET