Arctic Sinkholes Preview

Colossal explosions shake a remote corner of the Siberian tundra, leaving behind massive craters. In Alaska, a huge lake erupts with bubbles of inflammable gas. Scientists are discovering that these mystifying phenomena add up to a ticking time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas.

Preview Season 49 Episode 1 Length 00:30 Premiere: 02/02/22

Recent 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

Clips & Previews

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

Portable Homes Help Communities Adapt to Climate Change

Clip Length 04:18 Premiere Date 02/08/22

Arctic Sinkholes Preview

Preview Length 00:30 Premiere Date 02/02/22

What's Causing Water to Bubble in the Arctic?

Clip Length 04:21 Premiere Date 02/02/22

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

Specials

Picture a Scientist (with Audio Description)

Length 1:52:37 Premiere Date 04/14/21

Beyond the Elements: Life (with Audio Description)

Length 53:17 Premiere Date 02/17/21

Beyond the Elements: Indestructible (with Audio Description)

Length 53:17 Premiere Date 02/10/21

Beyond the Elements: Reactions (with Audio Description)

Length 53:17 Premiere Date 02/03/21

Secrets in our DNA (with Audio Description)

Length 53:26 Premiere Date 01/13/21

Treasures Metals Eiffel Tower

Length 02:09 Premiere Date 12/09/16

A Labyrinth of Lava

Length 01:13 Premiere Date 11/02/15

Ancient Life

Length 00:28 Premiere Date 10/22/15

Millions of Years Captured in Chalk

Length 01:17 Premiere Date 10/22/15

A Fourteen-Foot Fish From Kansas

Length 01:38 Premiere Date 10/22/15

Hell Creek Formation

Length 01:10 Premiere Date 10/22/15

No Dinosaurs Above the Line

Length 02:00 Premiere Date 10/22/15

Mammal Survivors

Length 01:40 Premiere Date 10/22/15

Dinosaur Fossils

Length 01:53 Premiere Date 10/22/15

King of Gore

Length 02:00 Premiere Date 10/22/15

Driving Dinosaur Diversity

Length 01:47 Premiere Date 10/22/15

Pangea

Length 00:56 Premiere Date 10/22/15

Making Granite From Volcanic Rock

Length 02:16 Premiere Date 10/22/15

A Massive Volcanic Eruption

Length 01:14 Premiere Date 10/22/15

From Mud to Rock

Length 01:36 Premiere Date 10/22/15

Finding Stromatolites

Length 01:23 Premiere Date 10/22/15

Stromatolites Were Kings

Length 01:05 Premiere Date 10/22/15

From Lava to Land

Length 02:14 Premiere Date 10/21/15

Semi-Precious Pebbles

Length 00:57 Premiere Date 10/21/15

Five Steps of Volcanic Rock

Length 00:26 Premiere Date 10/21/15

Tearing North America Apart

Length 01:01 Premiere Date 10/21/15

Fossilized Sand Dunes

Length 01:15 Premiere Date 10/21/15

Volcanoes of Sand

Length 01:33 Premiere Date 10/21/15

Rockies 2.0

Length 02:00 Premiere Date 10/21/15

Manhattan Schist

Length 01:13 Premiere Date 10/21/15

Manhattan Skyline

Length 00:52 Premiere Date 10/21/15

New York's Mountains

Length 01:13 Premiere Date 10/21/15

Rock Time Capsules

Length 01:18 Premiere Date 10/21/15

The Sandstone Top of the Canyon

Length 01:15 Premiere Date 10/21/15

Fossil-Filled Limestone

Length 00:54 Premiere Date 10/21/15

The Grand Canyon's Oldest Rocks

Length 00:19 Premiere Date 10/21/15

Gooseberry Falls 1

Length 00:57 Premiere Date 08/02/15

Gooseberry Falls 2

Length 00:24 Premiere Date 08/02/15

Gooseberry Falls 3

Length 01:06 Premiere Date 08/02/15

Gooseberry Falls 4

Length 01:01 Premiere Date 08/02/15

Mount Kilauea

Length 01:30 Premiere Date 08/02/15

Grand Canyon 1

Length 01:19 Premiere Date 08/02/15

Grand Canyon 2

Length 01:05 Premiere Date 08/02/15

Grand Canyon 3

Length 00:58 Premiere Date 08/02/15

Grand Canyon 4

Length 00:19 Premiere Date 08/02/15

Mendenhall Glacier

Length 02:51 Premiere Date 08/02/15

Monument Rocks 1

Length 01:18 Premiere Date 08/02/15

Monument Rocks 2

Length 01:48 Premiere Date 08/02/15

Exuma Cays 1

Length 01:26 Premiere Date 08/02/15

Exuma Cays 3

Length 00:28 Premiere Date 08/02/15

Exuma Cays 4

Length 03:22 Premiere Date 08/02/15

Lethal Seas Excerpt 1

Length 04:11 Premiere Date 05/12/15

Lethal Seas Excerpt 2

Length 01:00 Premiere Date 05/12/15

Lethal Seas Excerpt 3

Length 00:35 Premiere Date 05/12/15

Lethal Seas Excerpt 4

Length 00:51 Premiere Date 05/12/15

The Mother of Hubble

Length 02:28 Premiere Date 04/14/15

Formation of a Typhoon

Length 01:34 Premiere Date 06/25/14

Flatfish Larvae

Length 00:51 Premiere Date 05/06/14

RNAi Explained

Length 01:47 Premiere Date 04/22/14

Dolphin Mirror

Length 03:18 Premiere Date 04/22/14

Dogs' Sense of Time

Length 01:28 Premiere Date 04/13/14

Cockatoo Excerpt

Length 01:30 Premiere Date 04/08/14

How Solar Cells Work

Length 00:33 Premiere Date 02/26/14

Solar Power's Promise

Length 00:51 Premiere Date 02/26/14

Microneedle

Length 01:41 Premiere Date 12/30/13

GM Plants

Length 01:27 Premiere Date 11/15/13

Non-Newtonian Gel

Length 01:00 Premiere Date 11/15/13

Soft-Story Buildings

Length 07:36 Premiere Date 11/13/13

Therapeutic Hypothermia 3

Length 01:43 Premiere Date 10/24/13

Therapeutic Hypothermia 4

Length 02:01 Premiere Date 10/24/13

Levitation

Length 00:50 Premiere Date 10/24/13

Superconductor

Length 01:47 Premiere Date 10/24/13

Animal Robot 1

Length 02:35 Premiere Date 10/24/13

Animal Robot 2

Length 02:02 Premiere Date 10/24/13

Therapeutic Hypothermia

Length 01:11 Premiere Date 10/24/13

Therapeutic Hypothermia 2

Length 01:07 Premiere Date 10/24/13

Swarming Robots

Length 01:31 Premiere Date 10/21/13

Sneak Peek: Making Stuff Wilder

Length 06:14 Premiere Date 10/21/13

DNA Patch

Length 01:19 Premiere Date 10/19/13

DNA Vaccine

Length 00:38 Premiere Date 10/19/13

Earthquake Test

Length 02:03 Premiere Date 10/19/13

David Drives

Length 01:27 Premiere Date 10/19/13

Virus Battery

Length 02:21 Premiere Date 10/19/13

Shelley

Length 02:07 Premiere Date 10/19/13

Robot Arm

Length 00:56 Premiere Date 10/19/13

Elephant Arm

Length 01:22 Premiere Date 10/19/13

FinGripper

Length 00:55 Premiere Date 10/19/13

Sail Wing

Length 01:02 Premiere Date 10/19/13

Hydrofoil

Length 01:01 Premiere Date 10/19/13

Chicken Feathers

Length 01:56 Premiere Date 10/19/13

KillaCycle

Length 00:48 Premiere Date 10/19/13

How Batteries Work

Length 00:49 Premiere Date 10/19/13

Muon Detection

Length 01:52 Premiere Date 10/19/13

Muons

Length 01:25 Premiere Date 10/19/13

Plants White

Length 02:11 Premiere Date 10/19/13

Pitcher Plant

Length 01:48 Premiere Date 10/17/13

SLIPS

Length 01:01 Premiere Date 10/17/13

Hagfish

Length 00:51 Premiere Date 10/17/13

Hagfish Defense

Length 01:36 Premiere Date 10/17/13

Slime Clothes

Length 01:00 Premiere Date 10/17/13

New York City One Year Later: Telecommunications

Length 03:14 Premiere Date 10/16/13

Sneak Peek: Making Stuff Faster

Length 05:06 Premiere Date 10/15/13

David's Race

Length 01:28 Premiere Date 10/15/13

Steffen's Plan

Length 01:59 Premiere Date 10/15/13

Traveling Salesman

Length 01:21 Premiere Date 10/15/13

Corkscrew Robot

Length 00:32 Premiere Date 10/10/13

Slow Goldfish

Length 01:39 Premiere Date 10/10/13

Bee Toxin

Length 01:31 Premiere Date 10/10/13

Eye Robot

Length 01:51 Premiere Date 10/10/13

Mild Traumatic Brain Injury

Length 03:36 Premiere Date 10/07/13

Invisibility Cloak

Length 01:22 Premiere Date 09/24/13

Shape Memory Alloys

Length 00:32 Premiere Date 09/08/13

Jellyfish

Length 00:38 Premiere Date 09/08/13

Bird Wings

Length 01:56 Premiere Date 09/08/13

Shrinking Chips

Length 01:06 Premiere Date 09/05/13

Pizza Transistor

Length 01:34 Premiere Date 09/05/13

Graphene

Length 01:11 Premiere Date 09/05/13

Life-Saving Non-Newtonian Fluids

Length 01:43 Premiere Date 08/29/13

Silicon Transistors

Length 00:50 Premiere Date 08/29/13

Wheat Straw Plastic

Length 01:04 Premiere Date 08/29/13

Solar Leaves

Length 00:53 Premiere Date 08/29/13

Battle Jacket

Length 01:49 Premiere Date 08/29/13

Oobleck

Length 00:40 Premiere Date 08/29/13

Magnetic Oobleck

Length 00:54 Premiere Date 08/29/13

Starling 8

Length 00:44 Premiere Date 07/15/13

sandy-raw-1-2

Length 00:04 Premiere Date 07/08/13

sandy-raw-5-1

Length 01:02 Premiere Date 07/08/13

Chemotherapy Goes Small

Length 01:17 Premiere Date 07/01/13

The Making of a Cloud Old

Length 03:10 Premiere Date 06/30/13

Why So Many Cloud Types?

Length 03:35 Premiere Date 06/30/13

Clouds and Weather

Length 03:21 Premiere Date 06/30/13

Severe Storms

Length 03:37 Premiere Date 06/30/13

The Climate Wild Card

Length 03:02 Premiere Date 06/30/13

Life on Europa?

Length 02:25 Premiere Date 06/09/13

CloudLab_Megastorm_03

Length 01:41 Premiere Date 05/29/13

CloudLab_Megastorm_04

Length 01:43 Premiere Date 05/29/13

CloudLab_Megastorm_05

Length 01:04 Premiere Date 05/29/13

CloudLab_Megastorm_06

Length 00:40 Premiere Date 05/29/13

CloudLab_Megastorm_07

Length 03:07 Premiere Date 05/29/13

CloudLab_Megastorm_01

Length 00:35 Premiere Date 05/28/13

CloudLab_Megastorm_02

Length 00:31 Premiere Date 05/28/13

What Made the 1918 Flu So Deadly?

Length 01:28 Premiere Date 05/13/13

How the 1918 Flu Infected People

Length 00:25 Premiere Date 05/13/13

Fertilizing the Amazon

Length 03:27 Premiere Date 04/21/13

Flu Probabilities

Length 01:53 Premiere Date 04/16/13

Rare Earth Elements

Length 04:17 Premiere Date 04/01/13

CHNOPS: Ingredients for Life

Length 02:36 Premiere Date 03/12/13

Electromagnetic Spectrum

Length 00:44 Premiere Date 02/28/13

MODIS Sensor

Length 00:26 Premiere Date 02/28/13

Solving the Storage Problem

Length 02:26 Premiere Date 10/25/12

Putting Energy to Use Old

Length 02:14 Premiere Date 10/08/12

Season 49 Episodes

Show Episodes

Show Clips & Previews

Zero to Infinity

S49 E19 Length 53:32 Premiere Date 11/16/22

Crypto Decoded

S49 E18 Length 53:22 Premiere Date 11/09/22

Nazca Desert Mystery

S49 E17 Length 53:31 Premiere Date 11/02/22

Ocean Invaders

S49 E16 Length 53:32 Premiere Date 10/26/22

Can Psychedelics Cure?

S49 E15 Length 53:47 Premiere Date 10/19/22

Computers v. Crime

S49 E14 Length 53:30 Premiere Date 10/12/22

Rebuilding Notre Dame

S49 E13 Length 53:30 Premiere Date 10/05/22

Saving Venice

S49 E12 Length 53:31 Premiere Date 09/28/22

Ending HIV in America

S49 E11 Length 53:33 Premiere Date 10/05/22

Ultimate Space Telescope

S49 E10 Length 53:33 Premiere Date 07/13/22

Ice Age Footprints

S49 E9 Length 53:21 Premiere Date 05/25/22

Why Ships Crash

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

Determined: Fighting Alzheimer's

S49 E5 Length 53:28 Premiere Date 04/06/22

Augmented

S49 E4 Length 1:25:02 Premiere Date 02/23/22

Great Mammoth Mystery

S49 E3 Length 53:26 Premiere Date 02/16/22

Secrets in the Scat

S49 E2 Length 53:32 Premiere Date 02/09/22

Arctic Sinkholes

S49 E1 Length 53:17 Premiere Date 02/02/22

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

Portable Homes Help Communities Adapt to Climate Change

Clip Length 04:18 Premiere Date 02/08/22

Arctic Sinkholes Preview

Preview Length 00:30 Premiere Date 02/02/22

What's Causing Water to Bubble in the Arctic?

Clip Length 04:21 Premiere Date 02/02/22

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

See All Episodes

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

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

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

Top

Arctic Sinkholes Preview

Recent Episodes

Your Brain: Who's in Control?

Your Brain: Perception Deception

Hidden Volcano Abyss

Saving the Right Whale

Chasing Carbon Zero

Weathering the Future

Sponsored by:

Clips & Previews

How Seaweed May Help Revive Our Oceans

The False Promise of Cloning Your Pet

This Device Smells Diseases by Imitating a Dog's Nose

War Threatens Ukrainian Nuclear Power Plants

Animal-to-Human Organ Transplants

What is 5G, and is it Safe to Use on Planes?

Introducing NOVA's Financial Lab

Portable Homes Help Communities Adapt to Climate Change

Arctic Sinkholes Preview

What's Causing Water to Bubble in the Arctic?

Can South Carolina's Salt Marshes Be Saved?

From Prison to Careers in STEM

Specials

Picture a Scientist (with Audio Description)

Beyond the Elements: Life (with Audio Description)

Beyond the Elements: Indestructible (with Audio Description)

Beyond the Elements: Reactions (with Audio Description)

Secrets in our DNA (with Audio Description)

Treasures Metals Eiffel Tower

A Labyrinth of Lava

Ancient Life

Millions of Years Captured in Chalk

A Fourteen-Foot Fish From Kansas

Hell Creek Formation

No Dinosaurs Above the Line

Mammal Survivors

Dinosaur Fossils

King of Gore

Driving Dinosaur Diversity

Pangea

Making Granite From Volcanic Rock

A Massive Volcanic Eruption

From Mud to Rock

Finding Stromatolites

Stromatolites Were Kings

From Lava to Land

Semi-Precious Pebbles

Five Steps of Volcanic Rock

Tearing North America Apart

Fossilized Sand Dunes

Volcanoes of Sand

Rockies 2.0

Manhattan Schist

Manhattan Skyline

New York's Mountains

Rock Time Capsules

The Sandstone Top of the Canyon

Fossil-Filled Limestone

The Grand Canyon's Oldest Rocks

Gooseberry Falls 1

Gooseberry Falls 2

Gooseberry Falls 3

Gooseberry Falls 4

Mount Kilauea

Grand Canyon 1

Grand Canyon 2

Grand Canyon 3

Grand Canyon 4

Mendenhall Glacier

Monument Rocks 1

Monument Rocks 2

Exuma Cays 1

Exuma Cays 3

Exuma Cays 4

Lethal Seas Excerpt 1

Lethal Seas Excerpt 2

Lethal Seas Excerpt 3

Lethal Seas Excerpt 4

The Mother of Hubble

Formation of a Typhoon