CAPE CANAVERAL, FL - JUNE 01: In this handout provided by National Aeronautics and Space Administration (NASA), The STS-134 astronauts from left, European Space Agency's Roberto Vittori, Gregory H. ... more 
CAPE CANAVERAL, FL - JUNE 01: In this handout provided by National Aeronautics and Space Administration (NASA), The STS-134 astronauts from left, European Space Agency's Roberto Vittori, Gregory H. Johnson, pilot; Mark Kelly, commander; Michael Fincke, Greg Chamitoff, and Andrew Feustel, all mission specialists, pose for a group photograph shortly after landing onboard the space shuttle Endeavour at the Shuttle Landing Facility (SLF) at Kennedy Space Center, on June 01, 2011, in Cape Canaveral, Florida. Endeavour, completing a 16-day mission to outfit the International Space Station, spent 299 days in space and travelled more than 122.8 million miles during its 25 flights. It launched on its first mission on May 7, 1992. (Photo by Bill Ingalls/NASA Via Getty Images) less 
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Wed, Jun 1, 2011 8:13 AM EDT