Backup Flight Engineer Salizhan Sharipov, front, NASA Expedition 9 backup commander Leroy Chiao, center and backup European Space Agency astronaut Gerhard Thiele, of Germany arrive at Baikonur, Kazakhstan, Tuesday, April 13, 2004, six days prior to the scheduled launch of Expedition 9 on a Soyuz rocket. Photo Credit: (NASA/Bill Ingalls)