If you've already built your Space Shuttle in CityVille, you can now launch the shuttle into outer space, as a new series of ...

The X-37B looks like a miniature Space Shuttle, disappears into orbit for months or even years, and returns with very little publicly revealed about what it was doing. That secrecy has helped fuel one ...

An uncrewed U.S. Air Force space plane has just broken the record for time spent in orbit. What it's specifically been doing up there has been kept a tightly guarded secret. The X-37B, which looks ...

On April 22, 2010, the U.S. Air Force launched the super-secret X-37B space plane on its first spaceflight. [‘On This Day in Space’ Video Series on Space.com] This space plane is also known as the ...