Education
Bachelor of Science in Math & Physics, Theoretical, U. Witwatersrand, Johannesburg, 1968; Doctor of Philosophy, U. Cambridge, 1972.
Bachelor of Science in Math & Physics, Theoretical, U. Witwatersrand, Johannesburg, 1968; Doctor of Philosophy, U. Cambridge, 1972.
Royal Society Weir research fellow, Cavendish Laboratory, Cambridge U., 1972-1977; director, Owens Valley Radio Observatory, 1981-1986; senior research fellow, California Institute Technology, 1977-1979; research associate, California Institute Technology, 1979-1981; professor radio astronomical, California Institute Technology, 1981-1990; Executive officer, Department Astronomy, California Institute Technology, 1990-1992; professor astronomy, California Institute Technology, since 1990. Weir Research fellow Royal Society London, 1973-1977.
Member NAS, American Association for the Advancement of Science, American Astronomical Society, Royal Astronomical Society, International UnionRadio Science.