NOVA

Episodes

Can We Cool The Planet? Scientists look to geoengineering and other methods to cool the planet.

Secrets in Our DNA What can DNA testing companies reveal about our ancestry and health, and at what risk?

Investigate how and why life-sized terracotta statues were made for Emperor Qin Shi Huang of China.

Unravel the greatest mystery in Arctic exploration: the fate of the Franklin Expedition.

Join engineers as they race to rescue a historic Martha’s Vineyard lighthouse from certain doom.

Super Tunnel

Join engineers as they build a massive new subterranean railway deep beneath the streets of London.

Dog Tales Follow the epic journey of dog domestication and see what science says about dogs’ love.

Cat Tales Goddess, demon, house pet? What does science say about the human relationship with cats?

Secrets in the Scat Join biologists on an ingenious hunt for the clues hidden in animal poop.