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CAPE CANAVERAL, Fla. – STS-125 crew members acknowledge the spectators who have gathered to wish them well on their mission aboard space shuttle Atlantis to service NASA's Hubble Space Telescope. From left are Mission Specialists Mike Massimino, Michael Good, Andrew Feustel, John Grunsfeld and Megan McArthur, Pilot Gregory C. Johnson and Commander Scott Altman. Atlantis' 11-day flight will include five spacewalks to refurbish and upgrade the telescope with state-of-the-art science instruments that will expand Hubble's capabilities and extend its operational lifespan through at least 2014. The payload includes a Wide Field Camera 3, fine guidance sensor and the Cosmic Origins Spectrograph. Launch of Atlantis is scheduled for 2:01 p.m. May 11 EDT. Photo credit: NASA/Kim Shiflett