JSC2010-E-193582 (30 Nov. 2010) --- NASA astronaut Chris Ferguson, STS-135 commander, participates in a training session in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. STS-135 is planned to be the final mission of the space shuttle program. Photo credit: NASA or National Aeronautics and Space Administration
Photographer BILL STAFFORD
Date November 30, 2010