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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.