Pluto encounter

Go higher, faster and farther with the Smithsonian as they explore the dreams of flight.

Archival material from the original NASA film footage – much of it seen for the first time – plus interviews with the surviving...

The Seventh Doctor becomes the Eighth. And on the streets of San Francisco – alongside new ally Grace Holloway - he battles the Master.

Orson Welles — with contributions from scientists George Wald, Carl Sagan, and others — examines the possibility and implications of...

Top scientists want to build a nuclear bomb-powered spaceship to visit Mars and the planets.

For more than 50 years, we’ve been unsuccessfully searching for any evidence of intelligent extraterrestrial life. But, the discovery of...

Documentary about humankind’s first walk on the moon with Apollo 11, NASA’s first test mission of Orion for beyond low-space orbit, and...

Astronauts who have seen the Earth from space have often described the 'Overview Effect', an experience that has transformed their perspective of the...

Wicket the Ewok and his friends agree to help two shipwrecked human children, Mace and Cindel, on a quest to find their parents.

Led by Captain Christopher Pike, the crew of the starship Enterprise investigates of a far-off planet which was the site of a shipwreck eighteen...