KENNEDY SPACE CENTER, FLA. At Astrotech Space Operations in Titusville, Fla., STS-121 crew members look at equipment. From left are Pilot Mark Kelly, Mission Specialist Lisa Nowak. The STS-121 crew is at KSC to take part in Crew Equipment Interface Test activities, which provide hands-on experience with equipment they will use on-orbit. STS-121, the second Return to Flight mission, is targeted for launch in a lighted planning window of Sept. 9 to Sept. 25. CREDIT: NASA Kennedy Space Center...
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