Extras

Video thumbnail: NOVA Why Ships Crash Preview

NOVA

Why Ships Crash Preview

How could a single ship cause a major supply chain crisis around the globe?

Why Ships Crash Preview

Video thumbnail: NOVA The Crash That Shut Down the Global Economy, Explained

NOVA

The Crash That Shut Down the Global Economy, Explained

The Suez Canal is one of the most important shipping lanes in the world.

The Crash That Shut Down the Global Economy, Explained

Video thumbnail: NOVA Watch Scientists Extract a Rare Turtle Fossil

NOVA

Watch Scientists Extract a Rare Turtle Fossil

The Late Cretaceous period was kind of the heyday of turtles.

Watch Scientists Extract a Rare Turtle Fossil

Video thumbnail: NOVA New Fossil May Reveal Clues to Dinosaurs' Final Days

NOVA

New Fossil May Reveal Clues to Dinosaurs' Final Days

This might be the first time in 66 million years that this leg has seen the light of day.

New Fossil May Reveal Clues to Dinosaurs' Final Days

Video thumbnail: NOVA Inside a Fossilized Pterosaur Egg

NOVA

Inside a Fossilized Pterosaur Egg

Bones and shells can tell us a lot about how these creatures lived.

Inside a Fossilized Pterosaur Egg

Video thumbnail: NOVA Dinosaur Apocalypse: The New Evidence Preview

NOVA

Dinosaur Apocalypse: The New Evidence Preview

Striking new fossils paint a picture of life right before the asteroid impact.

Dinosaur Apocalypse: The New Evidence Preview

Video thumbnail: NOVA Dinosaur Apocalypse: The Last Day

NOVA

Dinosaur Apocalypse: The Last Day

Scientists use new fossils to reconstruct the day the dinosaurs died.

Dinosaur Apocalypse: The Last Day

Video thumbnail: NOVA Try Passing this Alzheimer's Screening Test

NOVA

Try Passing this Alzheimer's Screening Test

You have 10 seconds to memorize six shapes.

Try Passing this Alzheimer's Screening Test

Video thumbnail: NOVA How an Alzheimer’s study reached Black communities

NOVA

How an Alzheimer’s study reached Black communities

Getting Black individuals involved in a study requires more than just asking them.

How an Alzheimer’s study reached Black communities

Video thumbnail: NOVA Determined: Fighting Alzheimer's Preview

NOVA

Determined: Fighting Alzheimer's Preview

Follow three women enrolled in a new study to try to prevent Alzheimer’s.

Determined: Fighting Alzheimer's Preview

Video thumbnail: NOVA Depression Can Affect Memory—and Mirror Signs of Alzheimer's

NOVA

Depression Can Affect Memory—and Mirror Signs of Alzheimer's

Exercise may help depression patients regain memory.

Depression Can Affect Memory—and Mirror Signs of Alzheimer's

Video thumbnail: NOVA The Evolution of Prosthetic Leg Technology

NOVA

The Evolution of Prosthetic Leg Technology

Amputation procedures haven't changed much since the Civil War era.

The Evolution of Prosthetic Leg Technology

Video thumbnail: NOVA Why Wombats Poop Cubes

NOVA

Why Wombats Poop Cubes

Biologists and engineers solve a major marsupial mystery.

Why Wombats Poop Cubes

Video thumbnail: NOVA Increasing Access to Brain-Controlled Prosthetics

NOVA

Increasing Access to Brain-Controlled Prosthetics

Bionic interventions might allow people to one day design their own limbs.

Increasing Access to Brain-Controlled Prosthetics

Video thumbnail: NOVA How Neanderthals Came to Inhabit Northwest Europe

NOVA

How Neanderthals Came to Inhabit Northwest Europe

Stone tools reveal that four species of human have occupied Britain.

How Neanderthals Came to Inhabit Northwest Europe

Video thumbnail: NOVA Climbers Tell Story of Mt. Washington Climbing Accident

NOVA

Climbers Tell Story of Mt. Washington Climbing Accident

Climbing partners have a harrowing experience on Mount Washington in NH.

Climbers Tell Story of Mt. Washington Climbing Accident

Video thumbnail: NOVA Augmented Preview

NOVA

Augmented Preview

An ingenious new technology allows prosthetic legs to move and feel like the real thing.

Augmented Preview

Video thumbnail: NOVA The Mammoth Species You've Never Heard Of

NOVA

The Mammoth Species You've Never Heard Of

These bones could have belonged to some of the last surviving steppe mammoths in Britain.

The Mammoth Species You've Never Heard Of

Video thumbnail: NOVA Great Mammoth Mystery Preview

NOVA

Great Mammoth Mystery Preview

Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.

Great Mammoth Mystery Preview

Video thumbnail: NOVA Secrets in the Scat Preview

NOVA

Secrets in the Scat Preview

Join biologists on an ingenious hunt for the clues hidden in animal poop.

Secrets in the Scat Preview

Video thumbnail: NOVA Can Poop Help Protect Rhinos from Poachers?

NOVA

Can Poop Help Protect Rhinos from Poachers?

To “scatologists,” a pile of fresh scat in the wild is a treasure trove of information.

Can Poop Help Protect Rhinos from Poachers?

Video thumbnail: NOVA Portable Homes Help Communities Adapt to Climate Change

NOVA

Portable Homes Help Communities Adapt to Climate Change

See how one Alaskan community is dealing with the effects of rising Arctic temperatures.

Portable Homes Help Communities Adapt to Climate Change

Video thumbnail: NOVA What's Causing Water to Bubble in the Arctic?

NOVA

What's Causing Water to Bubble in the Arctic?

Scientists look for the source of large bubbles in an Arctic lake.

What's Causing Water to Bubble in the Arctic?

Video thumbnail: NOVA Arctic Sinkholes Preview

NOVA

Arctic Sinkholes Preview

In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate

Arctic Sinkholes Preview