Origins Unknown: The Alien Presence on Earth

Comets pose one of the greatest threats to life on Earth - a threat that can only be countered if we find out more about them. In 2005, in an...

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

Real witnesses. Real encounters. Never before seen footage.

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...

In unusual circumstances, scientists from different countries work together to achieve a common scientific goal. Locked in their spinning space lab,...

Director Dan Farah got 34 senior members of the U.S. Government, military, and intelligence community to come on camera. He says they reveal an 80...

A documentary about aliens and UFOs with re-enactments of alien interviews and video of a supposedly real video of an alien being interviewed by...

What if you could get behind the wheel and race through space? We scale down the Solar System to the continental United States and place the planets...

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

The award-winning film documents the amazing, true-life adventures of Billy Meier, the only proven UFO contactee.

Documentary chronicling the history of the Heaven's Gate cult, including actual home video footage and interviews with surviving members.

In the year 1957 the cold war expands to space. The Soviet-Union sends Sputnik as the first manmade object into earth-orbit. 3 years later Yuri...