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Expedition 37 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 Russian cosmonauts Fyodor Yurchikhin (left), commander; and Oleg Kotov, flight engineer. Pictured from the left (back row) are NASA astronaut Karen Nyberg, European Space Agency astronaut Luca Parmitano, NASA astronaut Michael Hopkins and Russian cosmonaut Sergey Ryazanskiy, all flight engineers.