Bachelor of science in physics from CalTech, 1955; Ph.D. in physics from CalTech, 1962; 1962 - 1963 Research Fellow, California Institute of Technology; 1963 - 1965 and 1965 - 1970 Assistant Professor of Space Science, Rice University; June - September 1970 Visiting Scientist, Institute of Theoretical Astronomy, Cambridge, England; 1971 - 1972 Member, Institute for Advanced Study Princeton, New Jersey; June - July 1972 Visiting Scientist, Institute of Theoretical Astronomy, Cambridge, England; 1970 - 1974 Professor of Space Physics and Astronomy and of Physics, Rice University; 1974-1979 Chairman, Department of Space Physics and Astronomy, Rice University; 1979 - 1980 Guggenheim Fellow, Ecole Polytechnique, Palaiseau, France; 1983-1984 Alexander von Humboldt Senior U.S. Scientist Max-Planck-Institut fuer Kernphysik Heidelberg, Federal Republic of Germany; 2001 - 2002 Visiting Professor Solar Terrestrial Environment Laboratory, University of Nagoya; since 1974 Andrew Hays Buchanan professor of astrophysics, Department of Space Physics and Astronomy, Rice University, Houston; hobbies: Photography, tennis, handball, baseball.