Man in the 5th Dimension

The 1960s was an extraordinary time for the United States. Unburdened by post-war reparations, Americans were preoccupied with other developments...

The Wonder of it All focuses on the human side of the men behind the Apollo missions through candid interviews with seven of the Apollo astronauts:...

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

"The World's Most Powerful Telescopes" is a research expedition across the southern firmament. The science documentary shows the powerful telescopes...

Aspiring teenage astronauts reveal that a journey to Mars is closer than you think.

Travel into the world of aviation and explore the dreams of flight with the Smithsonian as they step into the unknown.

The captivating tales of the people and events behind one of humanity's greatest achievements in exploration: NASA's Voyager mission.

How can structures, which take up defined, rigid portions of space, make us feel transcendence? How can chapels turn into places of introspection?...

It contains 99.9 percent of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour. The temperature at its core is...

On July 16, 1969, hundreds of thousands of spectators and an army of reporters gathered at Cape Kennedy to witness one of the great spectacles of the...

Laika, a stray dog, was the first living being to be sent into space and thus to a certain death. A legend says that she returned to Earth as a ghost...