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CAPE CANAVERAL, Fla. – Center Director Bob Cabana (center) shares a happy moment in the Firing Room of the Launch Control Center at NASA's Kennedy Space Center in Florida after the successful launch of space shuttle Endeavour on the STS-126 mission. Liftoff was on time at 7:55 p.m. EST. STS-126 is the 124th space shuttle flight and the 27th flight to the International Space Station. The mission will feature four spacewalks and work that will prepare the space station to house six crew members for long-duration missions. Photo credit: NASA/Kim Shiflett