John Glenn goes on another journey into outer space for tests on how old age is affected there. His whole life is chronicled in this informative documentary, from his first mission above to his experience as a senator and finally, his blast into space at age 77.

The film features amazing scenes of places never before seen gathered by key space missions that cul...

Using original footage and interviews, this documentary tells the nail-biting story of Apollo 13 and...

Spacecraft OSIRIS-REx attempts to grab a piece of an asteroid to bring back to Earth so scientists c...
Comets pose one of the greatest threats to life on Earth - a threat that can only be countered if we...

The 1960s was an extraordinary time for the United States. Unburdened by post-war reparations, Ameri...

Moonscape is a free and freely downloadable high-definition documentary about the first manned Moon ...

All of the necessary technologies required to reach the Moon was first tested during Project Gemini,...

How an electric lineman's tool manufacturer in Centralia, Missouri, helped save the first American s...
Produced by NASA contractor Rockwell International, this circa 1978 film was made shortly before the...

With access to the scientists and engineers responsible for the Curiosity rover's on-the-ground expe...

Social isolation affects millions of people, even Mars-bound astronauts. A savvy NASA psychologist i...

214 million years ago a gigantic meteorite broke up and impacted Earth. 65 million years ago, the im...

European Space Agency astronaut Alexander Gerst and his NASA colleague Reid Wiseman are launched int...

NASA's biggest spacecraft, Cassini, plunges into Saturn in the final act of a 20-year mission showca...

Horizon visits state-of-the-art laboratories and uses CGI to recreate the science-fiction-worthy wea...

Top Gear presenter James May presents this informative program that examines the historic moon missi...

William Shatner presents a light-hearted look at how the "Star Trek" TV series have influenced and i...

July 1969. America made history and sent the first humans to the moon. High-quality NASA footage and...

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