Origins Unknown: The Alien Presence on Earth

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...

A real-time reconstruction of time-lapse photographs taken on board the International Space Station by NASA’s Earth Science & Remote Sensing...

Top Gear presenter James May presents this informative program that examines the historic moon missions. Traveling to America, May meets three of the...

For 18-year-old Finnish–Kosovan Fatu, a simple visit to the grocery store feels as nerve-racking as a lunar expedition: for the first time in...

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

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

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...

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

Peabody Award winning journalist Linda Moulton Howe, JFK experts Robert Morningstar and Jim Marrs, and psychic CEO Sebastien Martin, narrate this...

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

A documentary about a young farmer’s experience of being kidnapped by extraterrestrials.