STS-125 commander Scott D. Altman, right, waves to NASA employees and family as he and his crew leave the Operations building at the Kennedy Space Center at Cape Canaveral, Fla., May 11, 2009. Atlantis'crew of seven is carrying hundreds of millions of dollars' worth of new telescope equipment. Astronauts will perform five spacewalks to install all the gear and attempt to fix two broken science instruments.
(Photo: AP Photo/Chris O Meara)
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