07/01/10: NASA sets launch target dates for Space Shuttles Discovery and Endeavour. Image credit: NASA NASA is targeting approximately 4:33 p.m. EDT [20:33 UT) on Nov. 1 for the launch of space shuttle Discovery's STS-133 mission and 4:19 p.m. EST (21:19 UT) on Feb. 26, 2011, for the liftoff of shuttle Endeavour's STS-134 flight from the Kennedy Space Center in Florida. The target dates were adjusted because critical payload hardware for STS-133 will not be ready in time to support the previously planned Sept. 16 launch. With STS-133 moving to November, STS-134 cannot fly as planned, so the next available launch window is in February 2011. NASA will schedule the official launch date for each mission following the agency's Flight Readiness Reviews, which typically occur about two weeks prior to launches. All target launch dates are subject to change. STS-133 poster. Image credit: NASA STS-134 poster. Image credit: NASA Launch Target Assembly Flight Launch Vehicle Element(s) Sept. 8, 2010 39P ISS Progress 39 Logistics and resupply Sept. 29, 2010 24S Soyuz TMA-20 Expedition 25 Crew transport Oct. 27, 2010 40P ISS Progress 40 Logistics and resupply Nov. 1, 2010 ULF5 Discovery STS-133 EXPRESS Logistics Carrier 4 (ELC4) Permanent Multi-Purpose Module (PMM) Dec. 27, 2010 41P ISS Progress 41 Logistics and resupply Feb. 26, 2011 ULF6 Endeavour STS-134 EXPRESS Logistics Carrier 3 (ELC3) Alpha Magnetic Spectrometer (AMS) Dec. 2011 3R Russian Proton Multipurpose Laboratory Module with European Robotic Arm (ERA) - courtesy of NASA

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