Bachelor of arts from University of California, Berkeley, 1963, master of science and Ph.D. in physiology & biophysics from the University of Illinois, Urbana-Champaign, 1963, 1965 and 1969 respectively; Joined NASA as a research scientist in 1969 where he served as Payload Specialist on Mission Simulations in 1976. Unsuccessful interview for NASA astronaut group 9, Mission Specialist Candidate in 1980; selected for Payload Specialist on STS-61D from 1983-1985, but resigned because he wanted to spend more time with his family; worked with US EPA as a research scientist and later Vice President of a research firm in Corvallis; currently he is living in West Linn, Oregon and working as Senior Environmental Consultant for Kennedy Jenks Consultants; eight grandchildren.