Bachelor of science in physics from CalTech,
1962;
Ph.D. in physics from the University of
California-Berkeley, 1967; research physicist in the University of California;
was selected and served as backup payload specialist for
STS-9; selected as payload specialist for the
STS-61K/Spacelab
EOM
1-2 mission (manifested March 09, 1986, but cancelled after the Challenger
accident), December 27, 1985; selected as payload specialist for the same (but
renamed) mission,
STS-45/
ATLAS-1, October 1989; replaced by backup payload
specialist Dirk
Frimout from Belgium due to medical problems, September 10,
1991.