Stock Photo - At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 4041 Soyuz Commander Maxim Suraev of the Russian Federal Space Agency (Roscosmos, front row and center), signs a ceremonial book during a tour of the Gagarin Museum May 8 as his crewmates and their backups look on. Also pictured are prime crewmember Alexander Gerst of the European Space Agency (front row, left) and NASA's Reid Wiseman (front row, right) and backup crew members Terry Virts of NASA (back row, left), Anton Shkaplerov of Roscosmos (back row, center) and Samantha Cristoforetti of the European Space Agency (back row, right). Gerst, Suraev and Wiseman of NASA are preparing for launch May 29, Kazakh time, from the Baikonur Cosmodrome in Kazakhstan on the Soyuz TMA-13M spacecraft for a 5 ½ month mission on the International Space Station.