Watch we are not alone on HDtoday. Reviews the evidence supporting the assertion of the existence of extraterrestrial life. Reveals some research techniques in this field.
52017HD
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...
72019HD
The first American space station Skylab is found in pieces scattered in Western Australia. Putting these pieces back together and re-tracing the...
02001HD
214 million years ago a gigantic meteorite broke up and impacted Earth. 65 million years ago, the impact that killed the dinosaurs occurred where the...
7.32017HD
A new age of space exploration, and exploitation, is dawning. But surprisingly, some of the boldest efforts at putting humans into space are now...
02022HD
European Space Agency astronaut Alexander Gerst and his NASA colleague Reid Wiseman are launched into space from the Baikonur Cosmodrome in...
82017HD
An incredible travel through space and time between the walls of the Paris Observatory, which is celebrating its 350th birthday. Place of discoveries...
5.82005HD
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...
6.11988HD
In a studio setting, Stephen Hawking, Arthur C. Clarke and Carl Sagan (who joins them via satellite) discuss the Big Bang theory, God, our existence...
71985HD
One film projected two times with a difference of a couple of seconds.
7.12022HD
At the edge of our solar system supposedly lies an immense planet. Five to ten times the size of the Earth. Several international teams of scientists...
9.52016HD
Horizon visits state-of-the-art laboratories and uses CGI to recreate the science-fiction-worthy weather experienced on other planets.
6.32021HD
Billions of years ago, Venus may have harbored life-giving habitats similar to those on the early Earth. Today, Earth's twin is a planet knocked...