Watch curiosity: searching for carbon soap2day. The Curiosity rover is seeking environments on Mars that could support life—or could have in the past. Earlier Mars missions found signs of water, but not organic carbon—life’s essential building block. Watch the Curiosity team prepare to hunt for carbon at Mount Sharp, which holds a geologic record hundreds of millions of years old.
4.42013HD
Is building our own starship Enterprise possible? Will we ever travel between the stars as easily as they do in Star Trek? JJ Abrams' new feature,...
02012HD
02012HD
72006HD
A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.
6.52015HD
Professor Iain Stewart reveals the story behind the Scottish physicist who was Einstein's hero; James Clerk Maxwell. Maxwell's discoveries not only...
01937HD
Raising angora rabbits for wool; new marine navigation and safety technology; kitchen gadgets; developing new rose varieties.
5.52004HD
A group of renowned cosmologists and astrophysicist are in search of a realistic picture of the universe. Their research and observational...
61958HD
Fascinating -- and unintentionally funny -- experiments at Austria's famed Institute for Experimental Psychology involve a subject who for several...
02011HD
Documentary-maker David Malone delves into the secrets of ocean waves. In an elegant and original film, he finds that waves are not made of water,...
02002HD
This documentary examines theories behind the creation of gamma ray bursts, destructive explosions in space that can wipe out entire star systems.
8.72008HD
The Hobbit Enigma examines one of the greatest controversies in science today: what did scientists find when they uncovered the tiny, human-like...
61957HD
This film consists of three parts. The first dramatizes the life of the founder of Soviet astronautics, Konstantin Tsiolkovsky; the second describes...