Expedition 43 Russian Cosmonaut Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), left, Russian cosmonaut Gennady Padalka of Roscosmos, center, and NASA Astronaut Scott Kelly pose for a photograph outside a Soyuz simulator during the second day of qualification exams, Thursday, March 5, 2015 at the Gagarin Cosmonaut Training Center in Star City, Russia.