Charles Darwin and the Tree of Life

Sniper: Bulletproof deconstructs and analyzes the little-known sniper events that have occurred when no other course of action was possible. The...

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.

Trees talk, know family ties and care for their young? Is this too fantastic to be true? German forester Peter Wohlleben and scientist Suzanne Simard...

Of the Seven Wonders of the Ancient World, the Pyramid is the only one to survive. Many believe that even with our 21st-century technology, we could...

The taped performance of Henry Fonda's one-man show was aired as "IBM Presents Clarence Darrow" on September 4, 1974, on NBC.

The film interweaves the personal accounts of polio survivors with the story of an ardent crusader who tirelessly fought on their behalf while...

From the unique vantage point of 200 miles above Earth's surface, we see how natural forces - volcanoes, earthquakes and hurricanes - affect our...

In 1858 Charles Darwin struggles to publish one of the most controversial scientific theories ever conceived, while he and his wife Emma confront...

William Shatner presents a light-hearted look at how the "Star Trek" TV series have influenced and inspired today's technologies, including: cell...

A documentary film that takes us on a scientific and spiritual journey where we discover that by changing one's perceptions, the human body can heal...

Although first glance reveals little more than stones and sand, the desert is alive. Witness moving rocks, spitting mud pots, gorgeous flowers and...

Take a fascinating journey inside the bizarre world of a living human being with this compelling documentary from National Geographic, where...