Expedition 47 prime crew members: Flight Engineer Jeff Williams of NASA, left; Soyuz Commander Alexey Ovchinin of Roscosmos, second left; and Flight Engineer Oleg Skripochka of Roscosmos, center; are seen at a press conference with Expedition 47 back up crew members, Flight Engineer Shane Kimbrough of NASA, third right; Soyuz Commander Sergey Ryzhikov of Roscosmos, second right; and Flight Engineer Andrey Borisenko of Roscosmos, far right; held at the Cosmonaut Hotel in Baikonur, Kazakhstan on Thursday, March 17, 2016. The mission is set to launch March 19 from the Baikonur Cosmodrome.