On Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Endeavour is revealed as the rotating service structure, or RSS, is rolled away. First motion was at 11:00 p.m. EDT. The rollback is in preparation for Endeavour's liftoff on the STS-127 mission with a crew of seven. This is the third launch attempt for the STS-127 mission. The first two attempts on June 13 and June 17 were scrubbed when a hydrogen gas leak occurred during tanking due to a misaligned Ground Umbilical Carrier Plate. Endeavour will deliver the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, in the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the International Space Station. STS-127 is the 29th flight for the assembly of the space station. Photo credit: NASA/Jack Pfaller