NASA will begin the countdown for launch of Space Shuttle Columbia on mission STS-109 Feb. 25 at 10 a.m. EST at the T-43 hour mark. This mission marks the fourth Shuttle servicing mission to the ...

Engineers restarted the shuttle Endeavour's countdown Wednesday on the assumption the ship's damaged robot arm will be cleared for launch Friday night "as is." While an analysis of the arm's ...

The countdown for the final Space Shuttle launch began earlier this week. I’ve set my calendar alarms to remind me of Atlantis’ liftoff, scheduled for 11:26 am EDT this Friday, weather permitting.

The countdown clocks began ticking again Saturday for NASA's NASA's return to space, as shuttle managers voiced optimism, but not certainty, that they had fixed the fuel gauge problem that thwarted ...

NASA turned on the countdown clock June 10 for the space shuttle Endeavour’s scheduled June 13 launch to the International Space Station. The 16-day mission is the first of the final eight NASA ...