Jack N. James (1920–2001) was a US rocket engineer who worked for over 35 years at the Jet Propulsion Laboratory, Pasadena, California, USA. His work as a Project Manager for NASA's Mariner program in the 1960s included the first planetary flyby (of Venus) and first photographs by a space probe of Mars. He received commendations for his work from several U.S. Presidents, and his awards include the NASA Exceptional Scientific Achievement Medal (1965) and the Stuart Ballantine Medal (1967).
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