The STS-121 crewmembers gather for an in-flight crew photo. From the left (bottom) are astronauts Stephanie D. Wilson, mission specialist; Steven W. Lindsey, commander; and Lisa M. Nowak, mission specialist. From the left (top) are astronauts Piers J. Sellers, Michael E. Fossum, both mission specialists, and Mark E. Kelly, pilot.
The STS-121 crewmembers gather for an in-flight crew photo in the Destiny laboratory of the International Space Station. From the left (bottom) are astronauts Stephanie D. Wilson, mission specialist; Steven W. Lindsey, commander; and Lisa M. Nowak, mission specialist. From the left (top) are astronauts Piers J. Sellers, Michael E. Fossum, both mission specialists, and Mark E. Kelly, pilot.Image credit: NASA