STS-122 Neutral Buoyancy Laboratory (NBL) at the Sonny Carter Training Facility (SCTF) Training Session

JSC2007-E-27765 (6 June 2007) --- Astronauts John M. Grunsfeld (right, partially obscured), Michael J. Massimino (third right, partially obscured) and Andrew J. Feustel (left foreground), STS-125 mission specialists, participate in a training session with a Hubble Space Telescope mockup in the Neutral Buoyancy Laboratory (NBL) near Johnson Space Center.