NOVA — Season 30

Doctors combat the deadliest form of meningitis, which strikes young people out of the blue.

Toxic caverns teeming with strange life-forms spark a radical theory of how caves take shape.

Experts rescue priceless mosaics from an ancient city about to vanish beneath a reservoir.

Galileo struggles to persuade church authorities of the truth behind his astonishing discoveries about the cosmos.

A man obsessed with understanding volcanoes comes up with a radical new way to predict eruptions.

Experts struggle to save the City of Canals before it vanishes beneath the waves

NOVA investigates an all-consuming passion for orchids, nature's most highly evolved plant.

Nova recounts the history of the development of military unmanned aerial vehicles along with the opportunities and challenges they present.

Forensic scientists set out to discover what happened to seven American airmen whose plane crashed in Kamchatka during World War II.

Meet the coelacanth, a bizarre fish and "living fossil" that has changed little in its 400 million years on Earth.

Two aviation giants, Lockheed Martin and Boeing, compete to build the next-generation fighter jet.

Jon Krakauer and fellow mountaineers pioneer a new route on a scientific expedition up Antarctica's highest peak.

A crack restoration team tries to prevent priceless medieval Buddhist murals from crumbling into dust.

Radiation experts play out a frightening terrorist scenario—exploding a bomb laden with radioactive materials.

A toxic aquarium plant is accidentally released into the Mediterranean, overwhelming marine life and threatening to spread worldwide.

Meet Rosalind Franklin, the unsung heroine behind the discovery of DNA's double helix