Quantcast
Last updated on June 18, 2013 at 17:01 EDT
407 of 1107

August 13, 2012
NASA astronaut Doug Hurley, STS-135 pilot, participates in a training session in the Neutral Buoyancy Laboratory (NBL) near 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