Alexander Gerst and Maxim Suraev during training

Russian cosmonaut Maxim Suraev (right), Expedition 40 flight engineer and Expedition 41 commander; and European Space Agency astronaut Alexander Gerst, Expedition 40/41 flight engineer, participate in an emergency scenario training session in an International Space Station mock-up/trainer in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center, 17 September 2013.