English: European Space Agency astronaut Samantha Cristoforetti, Expedition 42/43 flight engineer; along with NASA astronauts Terry Virts, Expedition 42 flight engineer and Expedition 43 commander, and Barry Wilmore, Expedition 41 flight engineer and Expedition 42 commander, participate in an exercise in a Cupola trainer in the systems engineering simulator in the Avionics Systems Laboratory at NASA's Johnson Space Center.