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Season 48 Episodes

Ancient Maya Metropolis

S48 E22 Length 53:32 Premiere Date 01/26/22

Alaskan Dinosaurs

S48 E21 Length 53:32 Premiere Date 01/19/22

Butterfly Blueprints

S48 E20 Length 53:31 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 53:32 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 53:23 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 53:00 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 53:21 Premiere Date 04/21/21

Picture a Scientist

S48 E3 Length 1:33:06 Premiere Date 04/14/21

Looking for Life on Mars

S48 E2 Length 53:46 Premiere Date 02/24/21

Secrets in our DNA

S48 E1 Length 53:26 Premiere Date 01/13/21

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

Take a Ride into a Supermassive Black Hole

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

This University Monitors COVID-19 Through Saliva Testing

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

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

Why Misinformation Matters

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

Dream Hacking: Decisions, Addictions, and Sleep

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

How Mask-Wearing Misinformation Became a Reality

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

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

Texas' Power Grid Trouble is Far From Over

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

GameStop, Reddit, and the Rise of Risky Trades

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

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Saving Venice

Rising seas and sinking land threaten to destroy Venice. Can the city's new hi-tech flood barrier save it?

  • Tuesday October 4, 2022 3:00 am ET on KET2
  • Tuesday October 4, 2022 2:00 am CT on KET2

Ending HIV In America

Almost 40 years after the discovery of HIV could we be on the verge of ending the AIDS epidemic in America? How did scientists tackle one of the most elusive deadly viruses to ever infect humans? Can innovative drugs bring new infections to zero?

  • Wednesday October 5, 2022 9:00 pm ET on KET
  • Wednesday October 5, 2022 8:00 pm CT on KET
  • Thursday October 6, 2022 1:00 pm ET on KET
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Computers vs. Crime

Across the country, artificial intelligence is helping inform decisions about policing and criminal sentencing. This timely investigation digs into hidden biases, privacy risks and design flaws.

  • Wednesday October 12, 2022 9:00 pm ET on KET
  • Wednesday October 12, 2022 8:00 pm CT on KET
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  • Sunday October 16, 2022 7:00 pm ET on KET2
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  • Tuesday October 18, 2022 3:00 am ET on KET2
  • Tuesday October 18, 2022 2:00 am CT on KET2

Can Psychedelics Cure?

Scientists explore the potential for profoundly positive clinical impacts of mind-altering drugs, helping patients struggling with afflictions like addiction and depression.

  • Wednesday October 19, 2022 9:00 pm ET on KET
  • Wednesday October 19, 2022 8:00 pm CT on KET
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  • Tuesday October 25, 2022 3:00 am ET on KET2
  • Tuesday October 25, 2022 2:00 am CT on KET2

Ocean Invaders

Lionfish - long prized in home aquariums - have invaded the Atlantic. Learn what makes the lionfish such a successful invasive species, how it's wreaking havoc, and what can be done about it.

  • Wednesday October 26, 2022 9:00 pm ET on KET
  • Wednesday October 26, 2022 8:00 pm CT on KET
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  • Tuesday November 1, 2022 12:00 am ET on KET2
  • Monday October 31, 2022 11:00 pm CT on KET2

Nazca Desert Mystery

  • Wednesday November 2, 2022 9:00 pm ET on KET
  • Wednesday November 2, 2022 8:00 pm CT on KET
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  • Thursday November 3, 2022 12:00 pm CT on KET
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  • Friday November 4, 2022 1:00 am CT on KET
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Saving Venice - S49 E12

  • Sunday October 2, 2022 7:00 pm ET on KET2
  • Sunday October 2, 2022 6:00 pm CT on KET2
  • Friday September 30, 2022 2:00 am ET on KET
  • Friday September 30, 2022 1:00 am CT on KET
  • Thursday September 29, 2022 1:00 pm ET on KET
  • Thursday September 29, 2022 12:00 pm CT on KET
  • Wednesday September 28, 2022 9:00 pm ET on KET
  • Wednesday September 28, 2022 8:00 pm CT on KET

Cuba's Cancer Hope - S47 E5

  • Wednesday September 28, 2022 8:00 am ET on KETWORLD
  • Wednesday September 28, 2022 7:00 am CT on KETWORLD
  • Wednesday September 28, 2022 12:00 am ET on KETWORLD
  • Tuesday September 27, 2022 11:00 pm CT on KETWORLD
  • Tuesday September 27, 2022 7:00 pm ET on KETWORLD
  • Tuesday September 27, 2022 6:00 pm CT on KETWORLD

Hindenburg: The New Evidence - S48 E6

  • Tuesday September 27, 2022 3:00 am ET on KET2
  • Tuesday September 27, 2022 2:00 am CT on KET2
  • Sunday September 25, 2022 7:00 pm ET on KET2
  • Sunday September 25, 2022 6:00 pm CT on KET2
  • Friday September 23, 2022 2:00 am ET on KET
  • Friday September 23, 2022 1:00 am CT on KET
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  • Thursday September 22, 2022 12:00 pm CT on KET

Nature's Fear Factor - S47 E9

  • Wednesday September 21, 2022 8:00 am ET on KETWORLD
  • Wednesday September 21, 2022 7:00 am CT on KETWORLD
  • Wednesday September 21, 2022 12:00 am ET on KETWORLD
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  • Friday September 16, 2022 3:30 am ET on KET
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  • Thursday September 15, 2022 12:00 pm CT on KET
  • Wednesday September 14, 2022 10:30 pm ET on KET
  • Wednesday September 14, 2022 9:30 pm CT on KET

A to Z: How Writing Changed the World - S47 E14

  • Wednesday September 14, 2022 8:00 am ET on KETWORLD
  • Wednesday September 14, 2022 7:00 am CT on KETWORLD
  • Wednesday September 14, 2022 12:00 am ET on KETWORLD
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  • Thursday September 8, 2022 1:00 pm ET on KET
  • Thursday September 8, 2022 12:00 pm CT on KET
  • Wednesday September 7, 2022 9:00 pm ET on KET
  • Wednesday September 7, 2022 8:00 pm CT on KET

A to Z: The First Alphabet - S47 E13

  • Wednesday September 7, 2022 8:00 am ET on KETWORLD
  • Wednesday September 7, 2022 7:00 am CT on KETWORLD
  • Wednesday September 7, 2022 12:00 am ET on KETWORLD
  • Tuesday September 6, 2022 11:00 pm CT on KETWORLD
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  • Tuesday September 6, 2022 3:00 am ET on KET2
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  • Thursday September 1, 2022 12:00 pm CT on KET

Butterfly Blueprints - S48 E20

  • Saturday October 1, 2022 5:00 am ET on KETWORLD
  • Saturday October 1, 2022 4:00 am CT on KETWORLD
  • Saturday September 3, 2022 5:00 am ET on KETWORLD
  • Saturday September 3, 2022 4:00 am CT on KETWORLD
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