Ten Ways The World Will End

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...

This film consists of three parts. The first dramatizes the life of the founder of Soviet astronautics, Konstantin Tsiolkovsky; the second describes...

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

In Astronomy Part 2, you will learn all about the planets, asteroids, comets, meteoroids, the layers of the sun, fusion, and more. The Standard...

This series also covers the essential concepts of astronomy: gravity, the light spectrum, Earth's magnetic field, the solar system, the sun, Kepler's...

Physics is a system of models of nature according to which all phenomena are explained in terms of matter and force. Sound confusing? It doesn't have...

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

The use of embryonic stem cells has ignited fierce debate across the spiritual and political spectrum. But what if we could create manmade stem cells...

When the U.S. trade embargo left Cuba isolated from medical resources, Cuban scientists were forced to get creative. Now they've developed lung...

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...

This film shows how far we have come since the cold-war days of the 50s and 60s. Back then the Russians were our "enemies". And to them the Americans...

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