Stock Photo - NASA astronaut Mark Polansky, STS-127 commander, is pictured in the hatch between Space Shuttle Endeavour and the International Space Station as the STS-127 crew members prepare for the undocking of the two spacecraft.

Stock Photo: NASA astronaut Mark Polansky, STS-127 commander, is pictured in the hatch between Space Shuttle Endeavour and the International Space Station as the STS-127.