Quantcast
S121-E-06058
131 of 420

S121-E-06058

August 18, 2011
Astronauts Piers J. Sellers (red stripes) and Michael E. Fossum, STS-121 mission specialists, work in tandem on the shuttle's Remote Manipulator System/Orbiter Boom Sensor System (RMS/OBSS) during the mission's first scheduled session of extravehicular activity (EVA).


comments powered by Disqus