The space shuttle Atlantis is moving ever closer to its Monday launch toward the Hubble Space Telescope, but there's a second spaceship standing by for a rescue mission NASA hopes it never needs. That ...

NASA could have launched another shuttle to rescue the Columbia astronauts if it had known early in the flight how severe the wing damage was and decided it was worth the extraordinary risk to the ...

HOUSTON - As NASA prepares for its final service call to the Hubble Space Telescope, it's also preparing for something never attempted in the history of the shuttle program: a rescue operation so ...

The space shuttle Endeavour was hauled to launch pad 38B early Friday for work to ready the ship for a flight NASA hopes will never happen. Bill Harwood has been covering the U.S. space program ...

With new tests convincing investigators that a piece of foam insulation breaking off the space shuttle Columbia during liftoff was the eventually cause of the tragedy last February, the debate now ...