The Most Powerful Black Holes in the Universe

Provides, through onsite study and observations of a young biologist, an introduction to the life cycle and habitat of the blue heron. Shows its...

This shows physicist Stephen Hawking's life as he deals with the ALS that renders him immobile and unable to speak without the use of a computer....

Go to the Big Island and hover above erupting craters at Hawaii Volcanoes National Park, watch flowing orange lava ooze across charred rock and steam...

Mackinac Island, Michigan, is a tiny island in the center of the Great Lakes. Besides being a world favorite "Horse Drawn" and "Victorian Era" summer...

Cuba's enforced isolation has resulted in the unlikeliest of marine reserves: a huge, rambling archipelago known as Jardines de la Reina, or "Gardens...

Val Plumwood, environmental philosopher returns to Kakadu, where she was the victim of a crocodile attack. Against the backdrop of the steamy,...

National Geographic filmmakers, Dereck and Beverly Joubert, explore how some animals are thrust together by the forces of nature-sometimes through a...