JSC2010-E-171243 (30 Sept. 2010) --- NASA astronauts Nicole Stott, Michael Barratt (center) and Alvin Drew, all STS-133 mission specialists, participate in an ingress/egress timeline training session in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Photo credit: NASA or National Aeronautics and Space Administration
Photographer MARK SOWA
Date September 30, 2010