STS-120 and Expedition 16 crewmembers pose in the Harmony node of the International Space Station (ISS). Astronaut Pam Melroy is at center. Clockwise, from bottom left: Peggy Whitson, Clay Anderson, Stephanie Wilson, Dan Tani, Scott Parazynski, Doug Wheelock, Paolo Nespoli, George Zamka and Yuri Malenchenko. Credit: NASA
