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Sagittarius A*: The Void at the Center of our Galaxy

A supermassive black hole sits at the center of the Milky Way galaxy, scientists believe. Would life as we know it exist without this invisible enigma?
Clip Season 48 Episode 18 Length 01:54 Premiere: 11/17/21

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Season 48 Episodes

Ancient Maya Metropolis

S48 E22 Length 53:31 Premiere Date 01/26/22

Alaskan Dinosaurs

S48 E21 Length 53:21 Premiere Date 01/19/22

Butterfly Blueprints

S48 E20 Length 53:20 Premiere Date 01/12/22

NOVA Universe Revealed: Big Bang

S48 E19 Length 53:16 Premiere Date 11/24/21

NOVA Universe Revealed: Black Holes

S48 E18 Length 53:16 Premiere Date 11/17/21

NOVA Universe Revealed: Alien Worlds

S48 E17 Length 53:17 Premiere Date 11/10/21

NOVA Universe Revealed: Milky Way

S48 E16 Length 53:17 Premiere Date 11/03/21

NOVA Universe Revealed: Age of Stars

S48 E15 Length 53:17 Premiere Date 10/27/21

Edible Insects

S48 E14 Length 53:28 Premiere Date 10/20/21

Arctic Drift

S48 E13 Length 53:31 Premiere Date 10/13/21

Particles Unknown

S48 E12 Length 53:28 Premiere Date 10/06/21

The Cannabis Question

S48 E11 Length 53:36 Premiere Date 09/29/21

Bat Superpowers

S48 E10 Length 53:13 Premiere Date 09/15/21

Ship That Changed the World

S48 E9 Length 53:12 Premiere Date 06/02/21

High-Risk High-Rise

S48 E8 Length 52:36 Premiere Date 01/05/22

Great Electric Airplane Race

S48 E7 Length 53:07 Premiere Date 05/26/21

Hindenburg: The New Evidence

S48 E6 Length 53:13 Premiere Date 05/19/21

Fighting for Fertility

S48 E5 Length 53:06 Premiere Date 05/12/21

Reef Rescue

S48 E4 Length 54:06 Premiere Date 04/21/21

Take a Ride into a Supermassive Black Hole

Clip Length 02:41 Premiere Date 12/03/21

NOVA Universe Revealed: Black Holes Preview

Preview Length 00:30 Premiere Date 11/17/21

Sagittarius A*: The Void at the Center of our Galaxy

Clip Length 01:54 Premiere Date 11/17/21

GameStop, Reddit, and the Rise of Risky Trades

Clip Length 08:35 Premiere Date 04/27/21

Texas' Power Grid Trouble is Far From Over

Clip Length 08:23 Premiere Date 03/20/21

The Big Lie about Monarch Butterflies

Clip Length 09:25 Premiere Date 03/15/21

Origins of Misinformation and How it Spreads

Clip Length 05:47 Premiere Date 03/15/21

How Mask-Wearing Misinformation Became a Reality

Clip Length 05:38 Premiere Date 02/23/21

Dream Hacking: Decisions, Addictions, and Sleep

Clip Length 14:34 Premiere Date 02/18/21

Why Misinformation Matters

Clip Length 02:41 Premiere Date 02/11/21

Lingering Symptoms from COVID-19 are “Unprecedented”

Clip Length 05:05 Premiere Date 02/04/21

New COVID-19 Variants Spread More Easily

Clip Length 07:15 Premiere Date 02/04/21

This University Monitors COVID-19 Through Saliva Testing

Clip Length 06:53 Premiere Date 01/15/21

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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.

  • Sunday April 21, 2024 7:00 pm ET on KET2
  • Sunday April 21, 2024 6:00 pm CT on KET2
  • Tuesday April 23, 2024 12:00 am ET on KET2
  • Monday April 22, 2024 11:00 pm CT on KET2
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Weathering the Future - S50 E5

As extreme weather in the U.S. impacts more people - with longer heat waves, more intense rainstorms, megafires, and droughts - discover how Americans are fighting back by marshaling ancient wisdom and innovating new solutions.

  • Monday April 22, 2024 4:00 pm ET on KETWORLD
  • Monday April 22, 2024 3:00 pm 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
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  • Sunday April 28, 2024 7:00 pm ET on KET2
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  • 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
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  • Sunday May 5, 2024 7:00 pm ET on KET2
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  • Monday May 6, 2024 11:00 pm CT on KET2
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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
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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
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Making North America: Origins - S42 E20

  • 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
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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
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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
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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
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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
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  • Friday March 22, 2024 2:00 am ET on KET
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  • Wednesday March 20, 2024 9:00 pm ET on KET
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Hidden Volcano Abyss - S50 E8

  • Wednesday March 20, 2024 8:00 am ET on KETWORLD
  • Wednesday March 20, 2024 7:00 am CT on KETWORLD
  • Wednesday March 20, 2024 12:00 am ET on KETWORLD
  • Tuesday March 19, 2024 11:00 pm CT on KETWORLD
  • Tuesday March 19, 2024 7:00 pm ET on KETWORLD
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