current and former astronauts who formed the crews of STS-1, the first
space shuttle mission, and STS-135, the final shuttle mission, pose for a
group photo at the Johnson Space Center in Houston on Nov. 2, 2011.
They are, from left, John Young, STS-1 commander, Robert Crippen, STS-1
pilot, with the STS-135 crew of commander Chris Ferguson, pilot Doug
Hurley and mission specialists Sandy Magnus and Rex Walheim.