Five years after Columbia disintegrated 63 kilometers over Texas as it returned from a 16-day mission, one thing is clear: The identity of this tight-knit community will be forever twinned with the fate of Columbia.
Science editor Alan Boyle's blog: Fifty years ago, the Explorer 1 launch put America in the space race and set a course that is still yielding scientific discoveries galore.
Atlantis is supposed to lift off with the European Space Agency's Columbus lab next week after a two-month delay, but a new problem could force yet another postponement.
A whole new side of Mercury has been revealed in pictures taken by NASA's Messenger probe, which flew by the tiny planet two weeks ago in the first mission to Mercury in more than three decades.
Five years after NASA's shuttle Columbia disintegrated during reentry and killed seven astronauts, the agency looks to test new safety features even beyond the upcoming launch of the Atlantis orbiter.
An asteroid once thought to be on a collision course with Mars passed the Red Planet today without incident.
The space station's two American astronauts go out on a riskier-than-usual spacewalk to fix one of two equipment failures that have crippled their power system.
The U.S. military is developing contingency plans to deal with the possibility that a large spy satellite expected to fall to Earth in late February or early March could hit North America.