NASA will begin the launch countdown for Space Shuttle Atlantis’ STS-115 mission at 6 p.m. EDT Thursday, Aug. 24, at the T-43 hour point. During this mission, Atlantis’ crew will resume construction ...
The four astronauts preparing to fly around the Moon on Artemis II have now practiced their biggest moment short of launch itself, completing a full countdown rehearsal that took them all the way to ...
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