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 ...
Over the course of five tightly choreographed spacewalks during NASA's upcoming Hubble Space Telescope (HST) servicing mission (STS-109), the space agency's on-orbit repair skills will be greatly ...
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