Season 44

NOVA

Bird Brain

S44 Ep20 | 53m 32s

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

NOVA

Extreme Animal Weapons

S44 Ep19 | 53m 27s

NOVA uncovers the secrets of nature’s battleground—claws, horns, fangs and all.

NOVA

Killer Floods

S44 Ep18 | 54m 10s

Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.

NOVA

Killer Hurricanes

S44 Ep17 | 53m 1s

Experts reconstruct the Great Hurricane of 1780 to help predict the risk of future storms.

NOVA

Killer Volcanoes

S44 Ep16 | 54m

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

NOVA

Secrets of the Forbidden City

S44 Ep15 | 53m 32s

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

NOVA

Poisoned Water

S44 Ep10 | 54m 24s

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

NOVA

Chinese Chariot Revealed

S44 Ep9 | 53m 46s

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

NOVA

Building Chernobyl's MegaTomb

S44 Ep8 | 52m 55s

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

NOVA

Ultimate Cruise Ship

S44 Ep4 | 53m 9s

Join pioneering shipbuilders as they embark on a feat of maritime engineering.