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After suiting up, the STS-125 crewmembers pause alongside the Astrovan to wave farewell to onlookers before heading for launch pad 39A for the launch of Space Shuttle Atlantis on the STS-125 mission to service the Hubble Space Telescope. From the right are Scott Altman, commander; Gregory C. Johnson, pilot; Megan McArthur, John Grunsfeld, Andrew Feustel, Michael Good and Mike Massimino, all mission specialists. 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 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.