Extras

Video thumbnail: NOVA The False Promise of Cloning Your Pet

NOVA

The False Promise of Cloning Your Pet

Cloning has come a long way since Dolly the sheep was born in 1996.

The False Promise of Cloning Your Pet

Video thumbnail: NOVA This Device Smells Diseases by Imitating a Dog's Nose

NOVA

This Device Smells Diseases by Imitating a Dog's Nose

Researchers at MIT create an electronic nose using chemical odor sensors.

This Device Smells Diseases by Imitating a Dog's Nose

Video thumbnail: NOVA War Threatens Ukrainian Nuclear Power Plants

NOVA

War Threatens Ukrainian Nuclear Power Plants

Ukraine's 15 active nuclear reactors generate about half of the country's electricity.

War Threatens Ukrainian Nuclear Power Plants

Video thumbnail: NOVA Animal-to-Human Organ Transplants

NOVA

Animal-to-Human Organ Transplants

In a first, a 57-year-old man received a heart transplant from a genetically modified pig.

Animal-to-Human Organ Transplants

Video thumbnail: NOVA What is 5G, and is it Safe to Use on Planes?

NOVA

What is 5G, and is it Safe to Use on Planes?

The 5G signal works in a fundamentally different way from 4G.

What is 5G, and is it Safe to Use on Planes?

Video thumbnail: NOVA Introducing NOVA's Financial Lab

NOVA

Introducing NOVA's Financial Lab

Practice making financial decisions by taking care of your pet through three mini-games.

Introducing NOVA's Financial Lab

Video thumbnail: NOVA Can South Carolina's Salt Marshes Be Saved?

NOVA

Can South Carolina's Salt Marshes Be Saved?

Many seafood dishes depend on an ecosystem that's easy to overlook: The salt marsh.

Can South Carolina's Salt Marshes Be Saved?

Video thumbnail: NOVA From Prison to Careers in STEM

NOVA

From Prison to Careers in STEM

Watch how four accomplished scientists began their careers or education in prison.

From Prison to Careers in STEM

Video thumbnail: NOVA Could Antiviral Pills Change the Course of the Pandemic?

NOVA

Could Antiviral Pills Change the Course of the Pandemic?

The FDA authorized use of the first antiviral pills to treat COVID-19 at home.

Could Antiviral Pills Change the Course of the Pandemic?

Video thumbnail: NOVA Why Distant Galaxies Look Red

NOVA

Why Distant Galaxies Look Red

The farther away a galaxy is, the redder it appears to our telescopes.

Why Distant Galaxies Look Red

Video thumbnail: NOVA Ultimate Space Telescope Preview

NOVA

Ultimate Space Telescope Preview

Discover how NASA engineers built and launched the most ambitious telescope of all time.

Ultimate Space Telescope Preview

Video thumbnail: NOVA NASA Reacts to the James Webb Space Telescope Images

NOVA

NASA Reacts to the James Webb Space Telescope Images

This NASA team was the first to see the new James Webb Space Telescope images.

NASA Reacts to the James Webb Space Telescope Images

Video thumbnail: NOVA How Scientists Created JWST's First Test Image

NOVA

How Scientists Created JWST's First Test Image

A test image from the James Webb Space Telescope unexpectedly captured many galaxies.

How Scientists Created JWST's First Test Image

Video thumbnail: NOVA Ice Age Footprints Preview

NOVA

Ice Age Footprints Preview

Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.

Ice Age Footprints Preview

Video thumbnail: NOVA Humans May Have Lived in North America Earlier Than Thought

NOVA

Humans May Have Lived in North America Earlier Than Thought

Scattered seeds help reveal when ancient humans first left footprints in North America.

Humans May Have Lived in North America Earlier Than Thought

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