April 24, 2013
Carl Walz aboard the International Space Station
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Carl E. Walz had a distinguished career as a NASA astronaut and is a veteran of four space flights, logging a total of 231 days in space. He was a mission specialist on STS-51 (1993), was the Orbiter flight engineer (MS-2) on STS-65 (1994), was a mission specialist on the STS-79 (1996) mission to the Russian Mir Space Station, and served as flight engineer (FE-1) on ISS Expedition 4 (2001-2002).