Expedition 39 crew members take a break from training at NASA's Johnson Space Center to pose for a crew portrait.
Expedition 39 crew members take a break from training at NASA’s Johnson Space Center to pose for a crew portrait. Pictured on the front row are Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata (right), commander; and NASA astronaut Steve Swanson, flight engineer. Pictured from the left (back row) are Russian cosmonauts Oleg Artemyev, Alexander Skvortsov, Mikhail Tyurin and NASA astronaut Rick Mastracchio, all flight engineers. Photo credit: NASA