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KENNEDY SPACE CENTER, FLA. - Excited about her first space flight, STS-121 Mission Specialist Lisa Nowak completes a fitting on her launch suit in the Operations and Checkout Building. The crew is making final preparations for the launch on July 1 to the International Space Station. On the 12-day mission, the crew will test new equipment and procedures to improve shuttle safety, as well as deliver supplies and make repairs to the station. This mission is the 115th shuttle flight and the 18th U.S. flight to the station. Photo credit: NASA/Kim Shiflett