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KENNEDY SPACE CENTER, FLA. -- The crew members of mission STS-116 are suiting up for a second launch attempt at 8:47 p.m. EST from Launch Pad 39B aboard Space Shuttle Discovery. Pictured here is Pilot William Oefelein, who is making his first shuttle flight. The first launch attempt of STS-116 on Dec. 7 was postponed due a low cloud ceiling over Kennedy Space Center. This is Discovery's 33rd mission and the first night launch since 2002. The 20th shuttle mission to the International Space Station, STS-116 carries another truss segment, P5. It will serve as a spacer, mated to the P4 truss that was attached in September. After installing the P5, the crew will reconfigure and redistribute the power generated by two pairs of U.S. solar arrays. Landing is expected Dec. 19 at KSC. Photo credit: NASA/Kim Shiflett