Skip to Main Content

Polar Extremes

Following a trail of fossils found in all the wrong places–beech trees in Antarctica, redwoods and hippo-like mammals in the Arctic–NOVA uncovers the bizarre history of the poles, from miles-thick ice sheets to warm polar forests teeming with life.
Season 47 Episode 1 Length 1:52:46 Premiere: 02/05/20

Sponsored by:

Season 47 Episodes

Human Nature

S47 E11 Length 1:33:41 Premiere Date 09/09/20

Eagle Power

S47 E7 Length 53:22 Premiere Date 05/20/20

Cat Tales

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

Dog Tales

S47 E2 Length 53:21 Premiere Date 02/12/20

Polar Extremes

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

Polar Extremes Preview

Preview Length 03:19 Premiere Date 02/05/20

What if Carbon Left Your Tailpipe as Solid Chunks?

Clip Length 02:12 Premiere Date 02/05/20

Plant Fossils Hint at Arctic's Swampy Past

Clip Length 03:02 Premiere Date 02/05/20

What did the East Coast Look Like 3 Million Years Ago?

Clip Length 03:21 Premiere Date 02/05/20

How Carbon Dioxide Warms Planet Earth

Clip Length 02:32 Premiere Date 02/05/20

A Bird's-Eye View of Carbon Emissions

Clip Length 01:56 Premiere Date 02/05/20

This Alaska Community is Losing Sea Ice to Climate Change

Clip Length 04:47 Premiere Date 02/05/20

Fifty Million Years Ago, the Arctic Was a Warm Swamp

Clip Length 02:07 Premiere Date 02/05/20

What’s Causing Greenland’s Biggest Glacier to Melt?

Clip Length 02:04 Premiere Date 02/05/20

This Canadian Cave Has Been Frozen Since the Last Ice Age

Clip Length 03:11 Premiere Date 02/05/20

How Climate Has Shifted Over Millions of Years

Clip Length 02:44 Premiere Date 02/05/20

Why Trees Are Living Climate Records

Clip Length 01:29 Premiere Date 02/03/20

See All Episodes

caret down

TV Schedules

Jump to Recent Airdates

Upcoming

Making North America: Origins - S42 E20

Premiered On: 11/04/2015

Discover how forces of almost unimaginable power gave birth to the continent of North America.

  • Tuesday April 23, 2024 12:00 am ET on KET2
  • Monday April 22, 2024 11:00 pm CT on KET2
  • Tuesday April 23, 2024 5:00 am ET on KET2
  • Tuesday April 23, 2024 4:00 am CT on KET2
  • Tuesday April 23, 2024 7:00 pm ET on KETWORLD
  • Tuesday April 23, 2024 6:00 pm CT on KETWORLD
  • Wednesday April 24, 2024 12:00 am ET on KETWORLD
  • Tuesday April 23, 2024 11:00 pm CT on KETWORLD
  • Wednesday April 24, 2024 8:00 am ET on KETWORLD
  • Wednesday April 24, 2024 7:00 am CT on KETWORLD

Making North America: Life - S42 E21

Premiered On: 11/11/2015

The mysteries of how life evolved in North America, including the arrival of humans, are explored.

  • Wednesday April 24, 2024 10:00 pm ET on KET
  • Wednesday April 24, 2024 9:00 pm CT on KET
  • Thursday April 25, 2024 5:00 pm ET on KET
  • Thursday April 25, 2024 4:00 pm CT on KET
  • Friday April 26, 2024 3:00 am ET on KET
  • Friday April 26, 2024 2:00 am CT on KET
  • Sunday April 28, 2024 7:00 pm ET on KET2
  • Sunday April 28, 2024 6:00 pm CT on KET2
  • Tuesday April 30, 2024 12:00 am ET on KET2
  • Monday April 29, 2024 11:00 pm CT on KET2

Making North America: Human - S42 E22

Premiered On: 11/18/2015

From Ice Age to oil boom, discover the challenges faced and the wealth uncovered as humans take over the continent.

  • Wednesday May 1, 2024 10:00 pm ET on KET
  • Wednesday May 1, 2024 9:00 pm CT on KET
  • Thursday May 2, 2024 5:00 pm ET on KET
  • Thursday May 2, 2024 4:00 pm CT on KET
  • Friday May 3, 2024 3:00 am ET on KET
  • Friday May 3, 2024 2:00 am CT on KET
  • Sunday May 5, 2024 7:00 pm ET on KET2
  • Sunday May 5, 2024 6:00 pm CT on KET2
  • Tuesday May 7, 2024 12:00 am ET on KET2
  • Monday May 6, 2024 11:00 pm CT on KET2
  • Tuesday May 7, 2024 5:00 am ET on KET2
  • Tuesday May 7, 2024 4:00 am CT on KET2

Why Bridges Collapse - S46 E18

Premiered On: 10/16/2019

NOVA investigates what may have led to the collapse of the Polcevera Bridge in Genoa, Italy, that killed 43 people. But the Polcevera Bridge isn't alone. Join experts as they compare what happened to the Polcevera with other deadly bridge collapses, including Minnesota's I-35W bridge over the Mississippi and the famed Silver Bridge over the Ohio River.

  • Wednesday May 8, 2024 10:00 pm ET on KET
  • Wednesday May 8, 2024 9:00 pm CT on KET
  • Thursday May 9, 2024 5:00 pm ET on KET
  • Thursday May 9, 2024 4:00 pm CT on KET
  • Friday May 10, 2024 3:00 am ET on KET
  • Friday May 10, 2024 2:00 am CT on KET
  • Sunday May 12, 2024 7:00 pm ET on KET2
  • Sunday May 12, 2024 6:00 pm CT on KET2
  • Tuesday May 14, 2024 12:00 am ET on KET2
  • Monday May 13, 2024 11:00 pm CT on KET2
  • Tuesday May 14, 2024 5:00 am ET on KET2
  • Tuesday May 14, 2024 4:00 am CT on KET2

Secrets in Your Data - S51 E7

Alok Patel takes a look at what happens to the personal data shared on social media and efforts to maximize benefits without compromising personal privacy.

  • Wednesday May 15, 2024 9:00 pm ET on KET
  • Wednesday May 15, 2024 8:00 pm CT on KET
  • Thursday May 16, 2024 5:00 pm ET on KET
  • Thursday May 16, 2024 4:00 pm CT on KET
  • Friday May 17, 2024 2:00 am ET on KET
  • Friday May 17, 2024 1:00 am CT on KET
  • Sunday May 19, 2024 7:00 pm ET on KET2
  • Sunday May 19, 2024 6:00 pm CT on KET2
  • Tuesday May 21, 2024 12:00 am ET on KET2
  • Monday May 20, 2024 11:00 pm CT on KET2

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 22, 2024 9:00 pm ET on KET
  • Wednesday May 22, 2024 8:00 pm CT on KET
  • Thursday May 23, 2024 5:00 pm ET on KET
  • Thursday May 23, 2024 4:00 pm CT on KET
  • Friday May 24, 2024 2:00 am ET on KET
  • Friday May 24, 2024 1:00 am CT on KET
Jump to Upcoming Airdates

Recent

Weathering the Future - S50 E5

  • Monday April 22, 2024 4:00 pm ET on KETWORLD
  • Monday April 22, 2024 3:00 pm CT on KETWORLD

Making North America: Origins - S42 E20

  • Sunday April 21, 2024 7:00 pm ET on KET2
  • Sunday April 21, 2024 6:00 pm CT on KET2
  • Friday April 19, 2024 3:00 am ET on KET
  • Friday April 19, 2024 2:00 am CT on KET
  • Thursday April 18, 2024 5:00 pm ET on KET
  • Thursday April 18, 2024 4:00 pm CT on KET
  • Wednesday April 17, 2024 10:00 pm ET on KET
  • Wednesday April 17, 2024 9:00 pm CT on KET

Ancient Maya Metropolis - S48 E22

  • Wednesday April 17, 2024 8:00 am ET on KETWORLD
  • Wednesday April 17, 2024 7:00 am CT on KETWORLD
  • Wednesday April 17, 2024 12:00 am ET on KETWORLD
  • Tuesday April 16, 2024 11:00 pm CT on KETWORLD
  • Tuesday April 16, 2024 7:00 pm ET on KETWORLD
  • Tuesday April 16, 2024 6:00 pm CT on KETWORLD
  • Tuesday April 16, 2024 5:00 am ET on KET2
  • Tuesday April 16, 2024 4:00 am CT on KET2
  • Tuesday April 16, 2024 12:00 am ET on KET2
  • Monday April 15, 2024 11:00 pm CT on KET2
  • Sunday April 14, 2024 7:00 pm ET on KET2
  • Sunday April 14, 2024 6:00 pm CT on KET2
  • Friday April 12, 2024 3:00 am ET on KET
  • Friday April 12, 2024 2:00 am CT on KET
  • Thursday April 11, 2024 5:00 pm ET on KET
  • Thursday April 11, 2024 4:00 pm CT on KET
  • Wednesday April 10, 2024 10:00 pm ET on KET
  • Wednesday April 10, 2024 9:00 pm CT on KET

Secrets of the Forbidden City - S44 E15

  • Friday April 5, 2024 3:00 am ET on KET
  • Friday April 5, 2024 2:00 am CT on KET
  • Wednesday April 3, 2024 10:00 pm ET on KET
  • Wednesday April 3, 2024 9:00 pm CT on KET

Great American Eclipse - S51 E6

  • Wednesday April 10, 2024 8:00 am ET on KETWORLD
  • Wednesday April 10, 2024 7:00 am CT on KETWORLD
  • Wednesday April 10, 2024 12:00 am ET on KETWORLD
  • Tuesday April 9, 2024 11:00 pm CT on KETWORLD
  • Tuesday April 9, 2024 7:00 pm ET on KETWORLD
  • Tuesday April 9, 2024 6:00 pm CT on KETWORLD
  • Tuesday April 9, 2024 5:00 am ET on KET2
  • Tuesday April 9, 2024 4:00 am CT on KET2
  • Tuesday April 9, 2024 12:00 am ET on KET2
  • Monday April 8, 2024 11:00 pm CT on KET2
  • Monday April 8, 2024 8:00 am ET on KETWORLD
  • Monday April 8, 2024 7:00 am CT on KETWORLD
  • Monday April 8, 2024 12:00 am ET on KETWORLD
  • Sunday April 7, 2024 11:00 pm CT on KETWORLD
  • Sunday April 7, 2024 8:00 pm ET on KETWORLD
  • Sunday April 7, 2024 7:00 pm CT on KETWORLD
  • Sunday April 7, 2024 7:00 pm ET on KET2
  • Sunday April 7, 2024 6:00 pm CT on KET2
  • Friday April 5, 2024 1:00 am ET on KET
  • Friday April 5, 2024 12:00 am CT on KET
  • Thursday April 4, 2024 5:00 pm ET on KET
  • Thursday April 4, 2024 4:00 pm CT on KET
  • Wednesday April 3, 2024 8:00 pm ET on KET
  • Wednesday April 3, 2024 7:00 pm CT on KET

A.I. Revolution - S51 E5

  • Wednesday April 3, 2024 5:00 pm ET on KET
  • Wednesday April 3, 2024 4:00 pm CT on KET
  • Wednesday April 3, 2024 8:00 am ET on KETWORLD
  • Wednesday April 3, 2024 7:00 am CT on KETWORLD
  • Wednesday April 3, 2024 12:00 am ET on KETWORLD
  • Tuesday April 2, 2024 11:00 pm CT on KETWORLD
  • Tuesday April 2, 2024 7:00 pm ET on KETWORLD
  • Tuesday April 2, 2024 6:00 pm CT on KETWORLD
  • Tuesday April 2, 2024 12:00 am ET on KET2
  • Monday April 1, 2024 11:00 pm CT on KET2
  • Sunday March 31, 2024 7:00 pm ET on KET2
  • Sunday March 31, 2024 6:00 pm CT on KET2
  • Friday March 29, 2024 2:00 am ET on KET
  • Friday March 29, 2024 1:00 am CT on KET
  • Thursday March 28, 2024 5:00 pm ET on KET
  • Thursday March 28, 2024 4:00 pm CT on KET
  • Wednesday March 27, 2024 9:00 pm ET on KET
  • Wednesday March 27, 2024 8:00 pm CT on KET

Why Bridges Collapse - S46 E18

  • Sunday March 24, 2024 7:00 pm ET on KET2
  • Sunday March 24, 2024 6:00 pm CT on KET2

Polar Extremes - S47 E1

  • Wednesday March 27, 2024 8:00 am ET on KETWORLD
  • Wednesday March 27, 2024 7:00 am CT on KETWORLD
  • Wednesday March 27, 2024 12:00 am ET on KETWORLD
  • Tuesday March 26, 2024 11:00 pm CT on KETWORLD
  • Tuesday March 26, 2024 7:00 pm ET on KETWORLD
  • Tuesday March 26, 2024 6:00 pm CT on KETWORLD
  • Friday March 22, 2024 2:00 am ET on KET
  • Friday March 22, 2024 1:00 am CT on KET
Top

Explore KET