Expedition 47 Soyuz Commander Alexey Ovchinin of Roscosmos, bottom; Flight Engineer Jeff Williams of NASA, center; and Flight Engineer Oleg Skripochka, of Roscosmos, top, wave farewell prior to boarding the Soyuz TMA-20M spacecraft for launch, Saturday, March 19, 2016 at the Baikonur Cosmodrome in Kazakhstan. Ovchinin, Williams, and Skripochka will spend the next five and a half months aboard the International Space Station.