JSC2006-E-20866 (1 June 2006) --- Astronaut Michael E. Fossum, STS-121 mission specialist, dons a training version of his Extravehicular Mobility Unit (EMU) spacesuit prior to being submerged in the waters of the Neutral Buoyancy Laboratory (NBL) near Johnson Space Center.

JSC2006-E-09827 (21 March 2006) --- The crewmembers assigned to STS-121 take a break from training for a group shot in the Johnson Space Center's Space Vehicle Mockup Facility. From the left are astronauts Thomas Reiter of the European Space Agency, Michael E. Fossum, Piers J. Sellers, Steven W. Lindsey, Mark E. Kelly, Stephanie D. Wilson and Lisa M. Nowak. Lindsey is mission commander and Kelly is pilot, with the other five serving as mission specialists. Once onboard the International Space Station, Reiter, who flew for six months on the Russian space station Mir, will become the first non-American or non-Russian long-duration crewmember on the Station. Joining the Expedition 13 crew, he will fly under a commercial agreement between ESA and Roscosmos.

JSC2005-E-03861 (28 January 2005) --- Astronauts Lisa M. Nowak (left), Michael E. Fossum and Piers J. Sellers, all STS-121 mission specialists, attired in training versions of the shuttle launch and entry suit, await the start of an emergency egress training session in the crew compartment trainer (CCT-1). The CCT is one of several shuttle-training components located in the Space Vehicle Mockup Facility at the Johnson Space Center (JSC).

NASA Associate Administrator for Space Operations William Gerstenmaier speaks during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin speaks during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, and Associate Administrator for Space Operations William Gerstenmaier, right, smile as Space Shuttle Program Manager Wayne Hale, right on television screen, and Ken Welzyn, External Tank Chief Engineer, join in from NASA's Marshall Space Flight Center during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, looks on as Associate Administrator for Space Operations William Gerstenmaier, right, speaks while Space Shuttle Program Manager Wayne Hale of NASA's Marshall Space Flight Center waits by during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Associate Administrator for Space Operations William Gerstenmaier, right, look on as Space Shuttle Program Manager Wayne Hale speaks from NASA's Marshall Space Flight Center during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, and Associate Administrator for Space Operations William Gerstenmaier, right, look on as Space Shuttle Program Manager Wayne Hale talks from NASA's Marshall Space Flight Center about the space shuttle's ice frost ramps during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, and Associate Administrator for Space Operations William Gerstenmaier, right, look on as Space Shuttle Program Manager Wayne Hale from NASA's Marshall Space Flight Center, holds a test configuration of an ice frost ramp during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, and Associate Administrator for Space Operations William Gerstenmaier, right, look on as Space Shuttle Program Manager Wayne Hale speaks from NASA's Marshall Space Flight Center during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. At left on screen is Ken Welzyn, External Tank Chief Engineer. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, second from left, and Associate Administrator for Space Operations William Gerstenmaier, right, look on as Space Shuttle Program Manager Wayne Hale speaks from NASA's Marshall Space Flight Center during a media briefing about the space shuttle program and processing for the STS-121 mission, Friday, April 28, 2006, at NASA Headquarters in Washington. Moderator Dean Acosta looks on af far left. Photo Credit (NASA/Bill Ingalls)