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Latest Episodes

Expired

Discover why scientists and entrepreneurs alike have their sights set on the Moon again.

Air date:
Wed, 07/10/2019 - 03:45
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//player.pbs.org/partnerplayer/tjSXwx6Hr5MTgQsSPIMiGg==/?topbar=false&end=0&endscreen=true&start=0&autoplay=false The asteroid that exploded over Siberia—injuring more than 1,000 and damaging buildings in six cities—was a shocking reminder that Earth is a target in a cosmic shooting range. From the width of a football field to the size of a small city, these space rocks have the potential to be killers. In a... /episodes/get/93030 /episode/93030 Asteroid: Doomsday or Payday? /episode-player/93030

Will future asteroids trigger massive extinctions—or be mined for precious minerals?

Air date:
Wed, 06/12/2019 - 04:45
Expired

Bioarchaeologists investigate a 9th-century mass grave thought to hold a lost Viking army.

Air date:
Thu, 05/23/2019 - 04:45
Expired

The advent of horse riding changed the course of human history and our genetic makeup.

Air date:
Wed, 05/15/2019 - 04:45
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//player.pbs.org/partnerplayer/Oi2QvgJo0HsQkSnj-rb3ug==/?topbar=false&end=0&endscreen=true&start=0&autoplay=false The California wildfires of 2018 took a worrisome trend to a new extreme, claiming scores of lives and over a million acres. Scientists investigate how forestry practices, climate change, and drought may contribute to the rise of deadly megafires. /episodes/get/92046 /episode/92046 Inside the Megafire /episode-player/92046

From the front line of the Camp Fire, the deadliest wildfire in California history, NOVA tells the stories of residents who had to flee for their lives during the 2018 fire season. Scientists racing to understand what's behind the rise of record-breaking megafires across the American West take to the forest, and even a fire lab, in search of answers. They investigate how forestry practices, climate change, and the physics of fire itself play a role in the dramatic increase in wildfires in recent decades.

Air date:
Wed, 05/08/2019 - 04:45
Expired

Can a daring water engineering project revive the Dead Sea without altering its chemistry?

Air date:
Wed, 04/24/2019 - 04:45
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