Edgar Maurice Cortright ( July 29 , 1923 -- May 4 , 2014 ) was a scientist and engineer , and senior official at the National Aeronautics and Space Administration ( NASA ) in the United States .
Edgar Maurice Cortright ( July 29 , 1923 -- May 4 , 2014 ) was an American scientist and engineer , and senior official at the National Aeronautics and Space Administration ( NASA ) in the United States .