The Most Powerful Black Holes in the Universe

Werner Herzog's documentary film about the "Grizzly Man" Timothy Treadwell and what the thirteen summers in a National Park in Alaska were like in...

After one of the hottest years on record, Sir David Attenborough looks at the science of climate change and potential solutions to this global...

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....

We have volunteered for the Earth Conservation Corps to restore the Anacostia river and the Washington wasteland where we live and often meet an...

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

A compilation episode of the wildlife documentary series presented by David Attenborough, uncovering the secrets of animals across the globe.

An in depth look at the undersea life of dolphins

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