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KENNEDY SPACE CENTER, FLA. - At Launch Pad 39B, the payloads for mission STS-121 are being moved from the payload changeout room into Space Shuttle Discovery's payload bay. Seen in the background is the multi-purpose logistics module Leonardo. Other payloads include the integrated cargo carrier that holds the mobile transporter reel assembly the astronauts will replace on the station and a spare pump module. Discovery is scheduled to launch at 3:48 p.m. July 1 carrying a crew of seven on the 12-day mission to the International Space Station. Photo credit: NASA/Charisse Nahser