Extras

Video thumbnail: NOVA Yes, Molecules Do Make Sounds

NOVA

Yes, Molecules Do Make Sounds

In the atomic world, everything is in motion, vibrating because of thermal energy.

Yes, Molecules Do Make Sounds

Video thumbnail: NOVA Meet the Enzyme Driving Photosynthesis

NOVA

Meet the Enzyme Driving Photosynthesis

Hear from two scientists trying to hack photosynthesis.

Meet the Enzyme Driving Photosynthesis

Video thumbnail: NOVA Growing Simple Cells with the Help of... Soap?

NOVA

Growing Simple Cells with the Help of... Soap?

To jumpstart evolution, a scientist shows, just add soap.

Growing Simple Cells with the Help of... Soap?

Video thumbnail: NOVA Beyond the Elements: Life Preview

NOVA

Beyond the Elements: Life Preview

Discover the fascinating chemistry that makes our world and everything in it—including us.

Beyond the Elements: Life Preview

Video thumbnail: NOVA Plastics: Durable, Diverse, and Indestructible

NOVA

Plastics: Durable, Diverse, and Indestructible

Processing can turn the same plastic into very different products.

Plastics: Durable, Diverse, and Indestructible

Video thumbnail: NOVA Beyond the Elements: Indestructible Preview

NOVA

Beyond the Elements: Indestructible Preview

Discover the fascinating chemistry that makes our world and everything in it—including us.

Beyond the Elements: Indestructible Preview

Video thumbnail: NOVA What Gives Hot Peppers Their Heat?

NOVA

What Gives Hot Peppers Their Heat?

"Beyond the Elements" host David Pogue explores the science of hot peppers—viscerally.

What Gives Hot Peppers Their Heat?

Video thumbnail: NOVA Beyond the Elements: Reactions Preview

NOVA

Beyond the Elements: Reactions Preview

Discover the fascinating chemistry that makes our world and everything in it—including us.

Beyond the Elements: Reactions Preview

Video thumbnail: NOVA Stabilizing Notre Dame's Famous Buttresses

NOVA

Stabilizing Notre Dame's Famous Buttresses

If the vaulting collapses, the weight of the buttresses will push in the 100-foot walls.

Stabilizing Notre Dame's Famous Buttresses

Video thumbnail: NOVA Saving Notre Dame's Stained Glass Masterpieces

NOVA

Saving Notre Dame's Stained Glass Masterpieces

Could the cathedral's beautiful stained glass collection survive the 2019 fire intact?

Saving Notre Dame's Stained Glass Masterpieces

Video thumbnail: NOVA Saving Notre Dame Preview

NOVA

Saving Notre Dame Preview

Scientists and engineers fight to save Notre Dame Cathedral after the 2019 fire.

Saving Notre Dame Preview

Video thumbnail: NOVA Repairing Notre Dame's Vaults with Underground Quarries

NOVA

Repairing Notre Dame's Vaults with Underground Quarries

Hidden under Paris is a rich source of limestone, a vast labyrinth of quarry tunnels.

Repairing Notre Dame's Vaults with Underground Quarries

Video thumbnail: NOVA What is Solar Geoengineering and Why is it Controversial?

NOVA

What is Solar Geoengineering and Why is it Controversial?

Solar geoengineering is like drawing a curtain over the face of the Earth.

What is Solar Geoengineering and Why is it Controversial?

Video thumbnail: NOVA Meet the NASA Scientist Who Uses Lasers to Study Forests

NOVA

Meet the NASA Scientist Who Uses Lasers to Study Forests

This researcher shoots lasers at trees in order to measure how much carbon forests store.

Meet the NASA Scientist Who Uses Lasers to Study Forests

Video thumbnail: NOVA How Much Coal Do People Burn Each Year?

NOVA

How Much Coal Do People Burn Each Year?

See how much CO2 we add to the atmosphere each year.

How Much Coal Do People Burn Each Year?

Video thumbnail: NOVA Can We Cool the Planet? Promo

NOVA

Can We Cool the Planet? Promo

Scientists look to geoengineering and other methods to cool the planet.

Can We Cool the Planet? Promo

Video thumbnail: NOVA Inside OSIRIS-REx’s Mission to Tag Asteroid Bennu

NOVA

Inside OSIRIS-REx’s Mission to Tag Asteroid Bennu

Learn more about OSIRIS-REx’s mission to an asteroid 200 million miles away.

Inside OSIRIS-REx’s Mission to Tag Asteroid Bennu

Video thumbnail: NOVA Did This Asteroid Just Turn into a Comet?

NOVA

Did This Asteroid Just Turn into a Comet?

Everything in the solar system is dynamic—you can watch it evolve in real time.

Did This Asteroid Just Turn into a Comet?

Video thumbnail: NOVA Asteroids Provide Hints About the "Ingredients" in Planets

NOVA

Asteroids Provide Hints About the "Ingredients" in Planets

By studying asteroids, researchers can learn about the formation of planets.

Asteroids Provide Hints About the "Ingredients" in Planets

Video thumbnail: NOVA Nature's Fear Factor Preview

NOVA

Nature's Fear Factor Preview

Can bringing predators—and fear—back into an ecosystem help restore its natural balance?

Nature's Fear Factor Preview

Video thumbnail: NOVA Meet Gorongosa National Park’s Head Veterinarian

NOVA

Meet Gorongosa National Park’s Head Veterinarian

Hear what it’s like to be a vet for wild animals.

Meet Gorongosa National Park’s Head Veterinarian

Video thumbnail: NOVA Lions Return to Mozambique's Gorongosa National Park

NOVA

Lions Return to Mozambique's Gorongosa National Park

Gorongosa National Park was once one of the most species-rich places in Africa.

Lions Return to Mozambique's Gorongosa National Park

Video thumbnail: NOVA The Anatomy of an African Wild Dog Hunt

NOVA

The Anatomy of an African Wild Dog Hunt

Lions and African wild dogs hunt their prey very differently.

The Anatomy of an African Wild Dog Hunt