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 ...
Terminal Countdown Demonstration Test (TCDT). The following events are available to media. training exercises at the pad and have opportunities to view and inspect the payloads in the orbiter’s ...
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