NOVA "The Perfect Pearl"
NOVA travels around the world to exotic locations where rare pearls are harvested by divers and to farms where huge numbers of pearls are grown. Will cultured pearls ruin the value of those grown in the wild?

NOVA "Absolute Zero"
This two-part special presents the epic story of humanity's struggle to master extreme cold.

NOVA "Is There Life on Mars?" showcases the latest scientific results from the rovers and Phoenix, which are poised to reveal provocative new clues in the tantalizing search for water and life on the Red Planet.

NOVA "The Ghost Particle"
The cosmos has a secret ingredient: a swarm of invisible particles that fill every cubic inch of space. Trillions of them zip through our bodies, but we don't notice a thing.

NOVA "Arctic Passage"
After the Franklin expedition, more than a half-century would pass before an innovative explorer finally conquered the Northwest Passage.

NOVA "Mystery of the Megavolcano"
A remote lake in Southeast Asia conceals evidence of Earth's greatest volcanic cataclysm of the last 100,000 years.

NOVA "The Four Winged Dinosaur"
Imagine a moment from the age of dinosaurs frozen in time: primitive birds, bees, insects, early mammals, the first known flowering plants, and of course, dinosaurs.