NASA will begin the countdown for the second Return to Flight launch attempt of Space Shuttle Discovery at noon EDT, July 23, 70 hours before the targeted liftoff. On mission STS-114, Discovery’s ...
NASA began the countdown for the launch of Space Shuttle Atlantis on mission STS-115 at noon EDT Thursday, Aug. 24, at the T-43 hour point. During this mission, Atlantis’ crew will resume the ...
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