Apollo 8: Christmas at the Moon

Using original footage and interviews, this documentary tells the nail-biting story of Apollo 13 and the struggle to bring its astronauts safely home.

Never-before-aired NASA footage presents evidence that the Moon is being used as a base.

Horizon visits state-of-the-art laboratories and uses CGI to recreate the science-fiction-worthy weather experienced on other planets.

National Geographic and NASA are sending you into space - live! For the first time ever, board the International Space Station and take a complete...

NASA's biggest spacecraft, Cassini, plunges into Saturn in the final act of a 20-year mission showcasing the planet like never before. An incredible...

In a studio setting, Stephen Hawking, Arthur C. Clarke and Carl Sagan (who joins them via satellite) discuss the Big Bang theory, God, our existence...

Twelve men who belong to one of the world's most exclusive fraternities -- people who've walked on the surface of the moon -- are paid homage in this...

Explores achievements of Eileen Collins, the first woman to pilot and command a spacecraft, paving the way for the next generation of female space...

Sally Ride's groundbreaking journey as the first American woman in space concealed a deeply personal story. Her life partner, Tam O'Shaughnessy,...

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

The Dream Is Alive takes you into space alongside the astronauts on the space shuttle. Share with them the delights of zero gravity while working,...

This feature-length documentary is a portrait of eclipse chasers, people for whom solar eclipses - among nature's more spectacular phenomena –...