Extras

Video thumbnail: NOVA Killer Volcanoes Preview

NOVA

Killer Volcanoes Preview

Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.

Killer Volcanoes Preview

Video thumbnail: NOVA Forbidden City Facts

NOVA

Forbidden City Facts

Discover how Beijing’s Forbidden City, the largest palace complex in the world.

Forbidden City Facts

Video thumbnail: NOVA Secrets of the Forbidden City Preview

NOVA

Secrets of the Forbidden City Preview

How has China’s magnificent Forbidden City withstood centuries of earthquakes?

Secrets of the Forbidden City Preview

Video thumbnail: NOVA Ghosts of Stonehenge Preview

NOVA

Ghosts of Stonehenge Preview

A decade of archaeological research uncovers provocative new clues about Stonehenge.

Ghosts of Stonehenge Preview

Video thumbnail: NOVA Secrets of the Shining Knight Preview

NOVA

Secrets of the Shining Knight Preview

Discover the world of medieval knights and see how their armor was made.

Secrets of the Shining Knight Preview

Video thumbnail: NOVA Musket v Medieval Armor

NOVA

Musket v Medieval Armor

Did knights have armor strong enough to stop bullets?

Musket v Medieval Armor

Video thumbnail: NOVA Saying Goodbye to Cassini

NOVA

Saying Goodbye to Cassini

Cassini, a brave explorer that was dispatched to study a distant ringed world, has died.

Saying Goodbye to Cassini

Video thumbnail: NOVA Amazing Discoveries from Cassini

NOVA

Amazing Discoveries from Cassini

Relive Cassini's greatest hits from its 13 years studying Saturn.

Amazing Discoveries from Cassini

Video thumbnail: NOVA Cassini's Search For Life

NOVA

Cassini's Search For Life

Is there life beyond Earth? The solar system's ocean worlds might be the most promising pl

Cassini's Search For Life

Video thumbnail: NOVA Why Did NASA Kill Cassini?

NOVA

Why Did NASA Kill Cassini?

Why kill a multibillion-dollar spacecraft?

Why Did NASA Kill Cassini?

Video thumbnail: NOVA Death Dive to Saturn Preview

NOVA

Death Dive to Saturn Preview

Follow Cassini's final days as it skims the cloud tops before plunging into the planet.

Death Dive to Saturn Preview

Video thumbnail: NOVA Why Eclipses Don't Happen Every Month

NOVA

Why Eclipses Don't Happen Every Month

Why don't solar eclipses happen every month?

Why Eclipses Don't Happen Every Month

Video thumbnail: NOVA 7 Stellar Facts about Solar Eclipses

NOVA

7 Stellar Facts about Solar Eclipses

Discover surprising facts about solar eclipses.

7 Stellar Facts about Solar Eclipses

Video thumbnail: NOVA How an Eclipse Proved Einstein Right

NOVA

How an Eclipse Proved Einstein Right

The total solar eclipse of 1919 led Albert Einstein down the path toward stardom.

How an Eclipse Proved Einstein Right

Video thumbnail: NOVA Watch an Eclipse Safely

NOVA

Watch an Eclipse Safely

With the US eclipse just over a week away, here’s how you can watch it safely.

Watch an Eclipse Safely

Video thumbnail: NOVA Eclipse Over America Preview

NOVA

Eclipse Over America Preview

The country’s first solar eclipse in 99 years will cast a light on the Sun’s secrets.

Eclipse Over America Preview

Video thumbnail: NOVA Eclipse Over America Trailer

NOVA

Eclipse Over America Trailer

The country’s first solar eclipse in 99 years will cast a light on the Sun’s secrets.

Eclipse Over America Trailer

Video thumbnail: NOVA Flint: A Timeline

NOVA

Flint: A Timeline

Follow the emergency in Flint from the switch in water supply to today’s health crisis.

Flint: A Timeline

Video thumbnail: NOVA Scandal's Joe Morton on Flint

NOVA

Scandal's Joe Morton on Flint

Actor Joe Morton, narrator of “Poisoned Water,” discusses the Flint water crisis.

Scandal's Joe Morton on Flint

Video thumbnail: NOVA What Does Lead Do to the Brain?

NOVA

What Does Lead Do to the Brain?

How does lead poisoning damage the brain—and can we stop it?

What Does Lead Do to the Brain?

Video thumbnail: NOVA This Woman Helped Save Flint

NOVA

This Woman Helped Save Flint

LeeAnne Walters, of Flint, Michigan, helps save the city from a lead water crisis.

This Woman Helped Save Flint

Video thumbnail: NOVA Poisoned Water Q&A with Scientists and Filmmakers

NOVA

Poisoned Water Q&A with Scientists and Filmmakers

What exactly went wrong in Flint—and what does it mean for the rest of the country?

Poisoned Water Q&A with Scientists and Filmmakers

Video thumbnail: NOVA Poisoned Water Preview

NOVA

Poisoned Water Preview

What exactly went wrong in Flint—and what does it mean for the rest of the country?

Poisoned Water Preview

Video thumbnail: NOVA Chinese Chariot Revealed Preview

NOVA

Chinese Chariot Revealed Preview

A team of experts rebuild an ancient battle chariot to help uncover its design secrets.

Chinese Chariot Revealed Preview