Ultimate Mars Challenge

The remarkable story of the determination and courage of a generation. A tribute to three brave astronauts and the thousands of men and women behind...

July 1969. Astronauts Neil Armstrong and Buzz Aldrin are 240,000 miles from earth facing the most hazardous venture in the history of space flight;...

From the unique vantage point of 200 miles above Earth's surface, we see how natural forces - volcanoes, earthquakes and hurricanes - affect our...

Explores achievements of Eileen Collins, the first woman to pilot and command a spacecraft, paving the way for the next generation of female space...

Sally Ride's groundbreaking journey as the first American woman in space concealed a deeply personal story. Her life partner, Tam O'Shaughnessy,...

Tragedy struck when the Space Shuttle Challenger disintegrated just 73 seconds into flight. Hours earlier, engineers argued to cancel the launch,...

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...

An epic journey around Mars — built from real satellite and rover data — revealing the red planet as you’ve never seen it before.

Before the joint NASA/ESA Cassini-Huygens mission, humanity only knew what had been learned, decades earlier, with the previous limited, rapid...

The Academy Award® nominee Cosmic Voyage combines live action with state-of-the-art computer-generated imagery to pinpoint where humans fit in...

How an electric lineman's tool manufacturer in Centralia, Missouri, helped save the first American space station from catastrophe.

Spacecraft OSIRIS-REx attempts to grab a piece of an asteroid to bring back to Earth so scientists can study it to learn about the planet's origins.