Gaia, the Greek word for Earth goddess, also is the name of the controversial hypothesis that life on Earth controls the environment. NOVA explores this provocative theory that challenges conventional ways of thinking about the Earth.

NOVA Season 13 Episodes...

• s13e01 - The National Science Test II
• s13e02 - Seeds of Tomorrow
• s13e03 - What Einstein Never Knew
• s13e04 - The Robot Revolution?
• s13e05 - The Magic of Special Effects
• s13e06 - Child Survival: The Silent Emergency
• s13e07 - Tornado!
• s13e08 - The Genetic Gamble
• s13e09 - Animal Architects
• s13e10 - The Plane that Changed the World
• s13e11 - Halley's Comet: Once in a Lifetime
• s13e12 - Goddess of the Earth
• s13e13 - Horsemen of China
• s13e14 - Life's First Feelings
• s13e15 - The Case of the Frozen Addict
• s13e16 - Toxic Trials
• s13e17 - Skydive to the Rain Forest
• s13e18 - Return of the Osprey
• s13e19 - The Rise of a Wonder Drug
• s13e20 - When Wonder Drugs Don't Work
• s13e21 - Visions of Star Wars

NOVA Show Summary

Seen in more than 100 countries, NOVA is the most watched science based television series in the world and the most watched documentary series on PBS. It is also one of television's most acclaimed series, having won many major television awards, most of them many times over.