NASA's STS-121 shuttle astronauts: (from top left) spacewalkers Piers Sellers and Michael Fossum, (from middle left) mission specialists Stephanie Wilson and Lisa Nowak, (from bottom left) pilot Mark Kelly and Expedition 13 astronauts Pavel Vinogradov and Jeff Williams, during a July 14, 2006 press interview. Not pictures are STS-121 commander Steven Lindsey and Expedition 13 flight engineer Thomas Reiter. Credit: NASA TV. Click to enlarge.
