JSC2010-E-119534 (25 Aug. 2010) --- NASA astronaut Gregory H. Johnson (second left), STS-134 pilot; along with NASA astronauts Greg Chamitoff (left), Andrew Feustel and European Space Agency astronaut Roberto Vittori, all mission specialists, are pictured in the check-out facility at Ellington Field near NASA's Johnson Space Center prior to a familiarization flight in NASA T-38 trainer jets. Photo credit: NASA or National Aeronautics and Space Administration