Season 44

Video thumbnail: NOVA Bird Brain

NOVA

Bird Brain

Watch as birds solve puzzles and challenge our basic notions of intelligence.

Bird Brain

Video thumbnail: NOVA Killer Volcanoes

NOVA

Killer Volcanoes

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

Killer Volcanoes

Video thumbnail: NOVA Secrets of the Forbidden City

NOVA

Secrets of the Forbidden City

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

Secrets of the Forbidden City

Video thumbnail: NOVA Poisoned Water

NOVA

Poisoned Water

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

Poisoned Water

Video thumbnail: NOVA Chinese Chariot Revealed

NOVA

Chinese Chariot Revealed

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

Chinese Chariot Revealed

Video thumbnail: NOVA Building Chernobyl's MegaTomb

NOVA

Building Chernobyl's MegaTomb

Engineers race to build a massive dome to contain the crumbling remains of the reactor.

Building Chernobyl's MegaTomb