In Their Own Words... Remembering Columbia's Crew

A Space.com TV exclusive.

Credit: NASA

Featured Videos

When Worlds Collide

Watch as two planets, one the size of the moon and the other as large as Mercury, smash into each ...

Play Video
Star Trek's Warp Drive: Are We There Yet?

Marc Millis, former head of NASA's Breakthrough Propulsion Physics ...
How the Sun Will Die: And What Happens to Earth

Five or so billion years from now, Earth's present orbit won't be a ...
Kibo: Japan's Hope in Space - Part 1

Watch the evolution of Japan's first space lab Kibo, which means Hope ...