The crews of STS-131 and Expedition 23 gathered for a group portrait

The crews of STS-131 and Expedition 23 gathered for a group portrait in the Kibo laboratory of the International Space Station while space shuttle Discovery was docked at the station. STS-131 crew (in light blue shirts) are commander Alan Poindexter, pilot James P. Dutton Jr., and mission specialists Clayton Anderson, Rick Mastracchio, Dorothy Metcalf-Lindenburger, Stephanie Wilson and Japan Aerospace Exploration Agency astronaut Naoko Yamazaki. Expedition 23 crew Commander Oleg Kotov, cosmonauts Mikhail Kornienko and Alexander Skvortsov, Japan Aerospace Exploration Agency astronaut Soichi Noguchi, and NASA astronauts T.J. Creamer and Tracy Caldwell Dyson.