Keywords: US Navy 090325-N-2959L-542 Astronauts Tom Marshburn, left, and Dave Wolf train for a spacewalk in the Integrated EVA-RMS Virtual Reality Simulator Facility at Johnson Space Center.jpg en HOUSTON March 24 2009 Astronauts Tom Marshburn left and Dave Wolf train for a spacewalk in the Integrated EVA/RMS Virtual Reality Simulator Facility at Johnson Space Center Marshburn and Wolf are members of STS-127 and will take a space flight with Lt Cmdr Chris Cassidy in an upcoming mission to the International Space Station in June U S Navy photo by Mass Communication Specialist 2nd Class Dominique M Lasco/Released 2009-03-24 090325-N-2959L-542 Navy http //www navy mil/view_image asp id 72274 U S Navy photo by Mass Communication Specialist 2nd Class Dominique M Lasco PD-USGov-Military-Navy 2009 in Houston Lyndon B Johnson Space Center Thomas Marshburn David Wolf |