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 ...
CAPE CANAVERAL, Fla. — NASA will start the launch countdown for space shuttle Discovery’s STS-120 mission at 2 p.m. EDT Saturday, Oct. 20, at T-43 hours. The countdown includes 26 hours and 38 minutes ...
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 ...