Extras

Video thumbnail: NOVA Oldest DNA Ever Found Reveals Secrets of the Ancient Arctic

NOVA

Oldest DNA Ever Found Reveals Secrets of the Ancient Arctic

Researchers drilled in the Kap København formation in Greenland to collect soil samples.

Oldest DNA Ever Found Reveals Secrets of the Ancient Arctic

Video thumbnail: NOVA Why Experts Say Permanent Daylight Saving Time is Unhealthy

NOVA

Why Experts Say Permanent Daylight Saving Time is Unhealthy

Early morning sunlight is the key to setting our internal clocks.

Why Experts Say Permanent Daylight Saving Time is Unhealthy

Video thumbnail: NOVA Why NASA is Going Back to the Moon

NOVA

Why NASA is Going Back to the Moon

NASA’s Artemis I is a big step toward sending humans back to the moon.

Why NASA is Going Back to the Moon

Video thumbnail: NOVA Watch the DART Spacecraft Smash into an Asteroid

NOVA

Watch the DART Spacecraft Smash into an Asteroid

Could we deflect an asteroid barreling toward Earth? DART offers a first test.

Watch the DART Spacecraft Smash into an Asteroid

Video thumbnail: NOVA How Storm Surges Work—and Why They’re So Deadly

NOVA

How Storm Surges Work—and Why They’re So Deadly

The deadliest part of a hurricane isn’t the wind–it’s water.

How Storm Surges Work—and Why They’re So Deadly

Video thumbnail: NOVA Sharks Are Showing Up Earlier—and Staying Longer

NOVA

Sharks Are Showing Up Earlier—and Staying Longer

Tiger sharks are showing up off the coast of New England earlier. What’s going on?

Sharks Are Showing Up Earlier—and Staying Longer

Video thumbnail: NOVA How Seaweed May Help Revive Our Oceans

NOVA

How Seaweed May Help Revive Our Oceans

Kelp’s ability to capture carbon from the ocean could help save marine ecosystems.

How Seaweed May Help Revive Our Oceans

Video thumbnail: NOVA The Hidden Cause of Traffic Jams—and How to Solve Them

NOVA

The Hidden Cause of Traffic Jams—and How to Solve Them

Self-driving vehicles might be the solution for phantom traffic jams.

The Hidden Cause of Traffic Jams—and How to Solve Them

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, but it still has limits.

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 Zero to Infinity Preview

NOVA

Zero to Infinity Preview

Discover how the concepts of zero and infinity revolutionized mathematics.

Zero to Infinity Preview

Video thumbnail: NOVA Thought Experiment: The Infinite Hilbert's Hotel

NOVA

Thought Experiment: The Infinite Hilbert's Hotel

At the Hilbert’s Hotel, there’s always room for one more.

Thought Experiment: The Infinite Hilbert's Hotel

Video thumbnail: NOVA The Area of a Circle, Explained with Pizza

NOVA

The Area of a Circle, Explained with Pizza

Finding the area of a circle is easy with pizza and infinity.

The Area of a Circle, Explained with Pizza

Video thumbnail: NOVA How the NFT Was Invented

NOVA

How the NFT Was Invented

An artist and a tech entrepreneur invented the non-fungible token, or NFT, in 24 hours.

How the NFT Was Invented

Video thumbnail: NOVA The History of Crypto Goes Further Back Than You Think

NOVA

The History of Crypto Goes Further Back Than You Think

Computer scientists and digital rebels built the revolutionary crypto system.

The History of Crypto Goes Further Back Than You Think

Video thumbnail: NOVA Crypto Decoded Preview

NOVA

Crypto Decoded Preview

What exactly is crypto, and how does it work? This technology is more than just money.

Crypto Decoded Preview

Video thumbnail: NOVA Who Carved These Mysterious Lines in the Desert?

NOVA

Who Carved These Mysterious Lines in the Desert?

Learn more about the ancient Nazca people and their ancestors, the Paracas.

Who Carved These Mysterious Lines in the Desert?