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New COVID-19 Variants Spread More Easily

Discover how new coronavirus variants formed around the world, and whether personal protective equipment and the new vaccines will successfully work against them.
Clip Length 07:15 Premiere: 02/04/21

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Host Dr. Wayne Tuckson in a dark shirt and gray jacket on the program set with a "Check Schedule" button.Host Dr. Wayne Tuckson in a dark shirt and gray jacket on the program set with a "Check Schedule" button.

Season Episodes

London Super Tunnel

S50 E1 Length 53:20 Premiere Date 02/01/23

Surviving an Elevator Fall

Clip Length 01:31 Premiere Date 08/23/10

Shabbat Elevator

Clip Length 02:42 Premiere Date 08/23/10

Six Questions with David Pogue

Clip Length 02:33 Premiere Date 01/04/11

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

Green Energy in China

Clip Length 05:09 Premiere Date 04/12/11

A Strict Carbon Diet

Clip Length 02:58 Premiere Date 04/12/11

Brian Greene Answers Your Questions

Clip Length 01:07 Premiere Date 08/02/11

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

Rebuilding 7 World Trade Center

Clip Length 01:48 Premiere Date 08/31/11

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Beyond the Elements: Life

Premiered On: 02/17/2021

Discover the molecules that allowed life on Earth to begin and explore how scientists use evolution.

  • Sunday January 29, 2023 7:00 pm ET on KET2
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London Super Tunnel

Construction teams confront immense challenges as they hurry to build a new subterranean railroad under London: the Elizabeth Line.

  • Wednesday February 1, 2023 9:00 pm ET on KET
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Star Chasers of Senegal

A visionary astronomer in West Africa attempts a high-stakes observation of a distant asteroid vital to a NASA mission.

  • Wednesday February 8, 2023 9:00 pm ET on KET
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Ancient Builders of the Amazon

Discoveries reveal traces of ancient civilizations that flourished for centuries with prehistoric populations in the Amazon.

  • Wednesday February 15, 2023 9:00 pm ET on KET
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New Eye on the Universe

Scientists discover how the first stars and galaxies were formed and the roles of supermassive black holes and dark matter.

  • Wednesday February 22, 2023 9:00 pm ET on KET
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Beyond the Elements: Life - S47 E19

  • Friday January 27, 2023 2:00 am ET on KET
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Beyond the Elements: Indestructible - S47 E18

  • Wednesday January 25, 2023 8:00 am ET on KETWORLD
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Beyond the Elements: Reactions - S47 E17

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Creatures of Light - S43 E9

  • Tuesday January 10, 2023 5:00 am ET on KET2
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The Truth About Fat - S47 E6

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Fighting for Fertility - S48 E5

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