Season 40

Video thumbnail: NOVA Asteroid: Doomsday or Payday?Passport

NOVA

Asteroid: Doomsday or Payday?

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

Asteroid: Doomsday or Payday?

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NOVA

At the Edge of Space

Can scientists unravel the mysterious phenomena that lurk between Earth and space?

At the Edge of Space

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NOVA

Oklahoma's Deadliest Tornadoes

Hear stories from survivors of Moore’s tornado and meet scientists who stalk these storms.

Oklahoma's Deadliest Tornadoes

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NOVA

Manhunt—Boston Bombers

Which technologies worked in the race to track down the men behind the marathon attack?

Manhunt—Boston Bombers

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NOVA

Meteor Strike

A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?

Meteor Strike

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NOVA

Mind of a Rampage Killer

Can science help us understand why some people commit horrific acts of mass murder?

Mind of a Rampage Killer

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NOVA

Earth From Space

Detailed satellite images reveal the web of connections that sustain life on Earth.

Earth From Space

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NOVA

Building Pharaoh's Chariot

A team uncovers the advanced engineering behind an ancient Egyptian war machine.

Building Pharaoh's Chariot

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NOVA

Decoding Neanderthals

Shared DNA reveals a deep connection with our long-vanished human cousins.

Decoding Neanderthals

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NOVA

Doomsday Volcanoes

Could the explosion of Iceland's ticking time bombs cause cold and famine worldwide?

Doomsday Volcanoes