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

NOVA "The Big Energy Gamble"
With help from eco-celebrities like Ed Begley, Jr. and Bill Nye "The Science Guy," NOVA examines California's aggressive pursuit of a sustainable energy future.

NOVA "The Incredible Journey of the Butterflies"
Every year, 100 million monarch butterflies set off on an incredible journey across North America. NOVA flies along with the monarchs.

NOVA "Inside the Spy Factory"
For the first time on television, NOVA exposes the hidden world of high-tech, 21st-century eavesdropping carried out by the National Security Agency (NSA).

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.

NOVA "Rat Attack"
Every 48 years, the inhabitants of the remote Indian state of Mizoram suffer a horrendous ordeal known locally as mautam. An indigenous species of bamboo blooms once every half-century, spurring an explosion in the rat population that feeds off the bamboo's fruit.