JSC2010-E-038787 (March 2010) --- NASA astronaut Tracy Caldwell Dyson, Expedition 23 flight engineer. Photo Credit: Roscosmos/Gagarin Cosmonaut Training Center.
JSC2010-E-038787 (March 2010) --- NASA astronaut Tracy Caldwell Dyson, Expedition 23 flight engineer. Photo Credit: Roscosmos/Gagarin Cosmonaut Training Center.