Boksenberg, Prof. Alexander, (born 18 March 1936), Hon. Professor of Experimental Astronomy, Institute of Astronomy, University of Cambridge, since 1991; Research Professor and PPARC Senior Research Fellow, Universities of Cambridge and London, 1996–99; Extraordinary Fellow, Churchill College, Cambridge, since 1996; Director, Royal Observatories, 1993–96: Royal Greenwich Observatory, Cambridge; Royal Observatory, Edinburgh; Isaac Newton Group of optical telescopes, Canary Islands; Joint Astronomy Centre, Hawaii; Chairman, UK National Commission for UNESCO, since 2004