Extras

Video thumbnail: NOVA Sea Level Rise: When 1 in = 2 ft

NOVA

Sea Level Rise: When 1 in = 2 ft

Sea levels will rise by the same amount all over the world, right? Wrong. Here’s why.

Sea Level Rise: When 1 in = 2 ft

Video thumbnail: NOVA Space Pics That Amaze Scientists

NOVA

Space Pics That Amaze Scientists

We asked scientists, “What are your favorite images from space?” Here’s what they said.

Space Pics That Amaze Scientists

Video thumbnail: NOVA Ghosts of Subatomic Particles

NOVA

Ghosts of Subatomic Particles

The universe’s smallest particles fly down from space and emit from a radioactive rod.

Ghosts of Subatomic Particles

Video thumbnail: NOVA North American Gold

NOVA

North American Gold

When the Earth formed, most of the gold sunk to its core—but some remained trapped inside

North American Gold

Video thumbnail: NOVA Secrets of the Ghost Forest

NOVA

Secrets of the Ghost Forest

Meet the earthquake that drowned the Pacific Northwest.

Secrets of the Ghost Forest

Video thumbnail: NOVA What is Spacetime?

NOVA

What is Spacetime?

A mysterious concept changed the way we understand reality.

What is Spacetime?

Video thumbnail: NOVA Gravity's Effect on Spacetime

NOVA

Gravity's Effect on Spacetime

Einstein's theory showed that time itself is affected by gravity.

Gravity's Effect on Spacetime

Video thumbnail: NOVA Einstein’s Thought Experiment

NOVA

Einstein’s Thought Experiment

Your perception of time depends on how you are moving.

Einstein’s Thought Experiment

Video thumbnail: NOVA These Boulders are Alive

NOVA

These Boulders are Alive

Dive down to rare stromatolites—key clues to the evolution of virtually all complex life.

These Boulders are Alive

Video thumbnail: NOVA Time Travel in the Grand Canyon

NOVA

Time Travel in the Grand Canyon

What does this geological wonder reveal about North America’s deep history?

Time Travel in the Grand Canyon

Video thumbnail: NOVA Are We Ready for a Cyber Attack?

NOVA

Are We Ready for a Cyber Attack?

Cyber threats from nation states and lone hackers are a persistent threat to America’s cri

Are We Ready for a Cyber Attack?

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