At the Gagarin Cosmonaut Training Center in Star City, Russia, the Expedition 46-47 prime and backup crewmembers pose for pictures Nov. 23 during a photo opportunity in which they signed a ceremonial book at the Gagarin Museum. In the front row are the prime crewmembers, Tim Peake of the European Space Agency (left), Yuri Malenchenko of the Russian Federal Space Agency (Roscosmos, center) and Tim Kopra of NASA (right). In the back row are backup crewmembers Kate Rubins of NASA, Anatoly Ivanishin of Roscosmos and Takuya Onishi of the Japan Aerospace Exploration Agency. Peake, Kopra and Malenchenko will launch on Dec. 15 on the Soyuz TMA-19M spacecraft from the Baikonur Cosmodrome in Kazakhstan for a six-month mission on the International Space Station.