The complex engineering challenges that make re-entry into the earth's atmosphere so dangerous. Scientists have labored for years to bring a crew safely home in what is essentially a meteorite, wrapped in a cocoon of fire, hurtling towards earth six times faster than the fastest bullet. Scientific experts from NASA explain the significance of Columbia's events as they unfolded, offer insights into what may have caused them and how those key events contributed to the shuttle’s ultimate destruction.

Twin astronauts Scott and Mark Kelly were separated for almost a year, undergoing intensive measurem...

Twelve men who belong to one of the world's most exclusive fraternities -- people who've walked on t...

In a studio setting, Stephen Hawking, Arthur C. Clarke and Carl Sagan (who joins them via satellite)...

A young apprentice struggles to master nanotechnology on an alien world and prove herself to her eni...

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

In the summer of 1977, NASA sent Voyager 1 and Voyager 2 on an epic journey into interstellar space....

Did Mars ever have life on it? To answer this question, Europe and Russia have launched a unique and...

From the unique vantage point of 200 miles above Earth's surface, we see how natural forces - volcan...
A short documentary about Fritz Lang's film 'Frau im Mond', and its relation to the science and hist...

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

Some 220 miles above Earth lies the International Space Station, a one-of-a-kind outer space laborat...

A new age of space exploration, and exploitation, is dawning. But surprisingly, some of the boldest ...

A testament to NASA's Apollo program of the 1960s and '70s. Composed of actual NASA footage of the m...

In one single, epic camera move we journey from Earth's surface to the outermost reaches of the univ...

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

Join the Mars rovers Spirit and Opportunity for an awe-inspiring journey to the surface of the myste...

National Geographic and NASA are sending you into space - live! For the first time ever, board the I...

An epic journey around Mars — built from real satellite and rover data — revealing the red planet as...

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

The Academy Award® nominee Cosmic Voyage combines live action with state-of-the-art computer-generat...