Season 40

Video thumbnail: NOVA Asteroid: Doomsday or Payday?

NOVA

Asteroid: Doomsday or Payday?

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

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Asteroid: Doomsday or Payday?

Video thumbnail: NOVA At the Edge of Space

NOVA

At the Edge of Space

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

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At the Edge of Space

Video thumbnail: NOVA Manhunt—Boston Bombers

NOVA

Manhunt—Boston Bombers

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

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Manhunt—Boston Bombers

Video thumbnail: NOVA Australia's First 4 Billion Years: Strange Creatures

NOVA

Australia's First 4 Billion Years: Strange Creatures

After a massive extinction, diverse marsupials came to dominate this isolated continent.

Australia's First 4 Billion Years: Strange Creatures

Video thumbnail: NOVA Australia's First 4 Billion Years: Monsters

NOVA

Australia's First 4 Billion Years: Monsters

Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.

Australia's First 4 Billion Years: Monsters

Video thumbnail: NOVA Australia's First 4 Billion Years: Life Explodes

NOVA

Australia's First 4 Billion Years: Life Explodes

Fossils reveal how life’s explosion in the ocean was recreated on dry land.

Australia's First 4 Billion Years: Life Explodes

Video thumbnail: NOVA Australia's First 4 Billion Years: Awakening

NOVA

Australia's First 4 Billion Years: Awakening

Australia’s landscape holds clues to Earth's early history and the beginning of life.

Australia's First 4 Billion Years: Awakening

Video thumbnail: NOVA Meteor Strike

NOVA

Meteor Strike

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

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Meteor Strike

Video thumbnail: NOVA Mind of a Rampage Killer

NOVA

Mind of a Rampage Killer

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

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Mind of a Rampage Killer

Video thumbnail: NOVA Earth From Space

NOVA

Earth From Space

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

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Earth From Space

Video thumbnail: NOVA Building Pharaoh's Chariot

NOVA

Building Pharaoh's Chariot

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

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Building Pharaoh's Chariot

Video thumbnail: NOVA Decoding Neanderthals

NOVA

Decoding Neanderthals

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

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Decoding Neanderthals

Video thumbnail: NOVA Doomsday Volcanoes

NOVA

Doomsday Volcanoes

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

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Doomsday Volcanoes