| Director, Institute of Astronomy, University of Cambridge |
2008 - pres. |
| Plumian Professor of Astronomy &
Experimental Philosophy, University of Cambridge |
2005 - pres. |
| Professorial Fellow, Churchill College,
University of Cambridge |
2006 - pres. |
| Professor/Astronomer, Steward Observatory, University of Arizona |
1992 - 2006 |
| Editor-in-Chief, The Astrophysical Journal |
1999 - 2006 |
| Deputy Head, Department of Astronomy, University of Arizona |
1991 - 1998 |
| Associate Professor/Astronomer, Steward Observatory, University of Arizona |
1988 - 1992 |
| Associate Professor, Department of Astronomy, University of Minnesota |
1985 - 1988 |
| Assistant Professor, Department of Astronomy, University of Minnesota |
1980 - 1985 |
| Carnegie Postdoctoral Fellow, Hale Observatories |
1978 - 1980 |
| Adjunct Research Fellow, California Institute of Technology |
1978 - 1980 |
| Bruno Rossi Lecturer, Arcetri Observatory, Florence |
2008 |
| Lyman Spitzer Lecturer, Department of
Astrophysical Sciences, Princeton University |
2007 |
| Caroline Herschel Distinguished Visitor, STScI |
2006 - 2007 |
| Adriaan Blaauw Professor, University of Groningen |
2001 |
| Visiting Astronomer, Carnegie Observatories |
1995 |
| Beatrice M. Tinsley Centennial Professor, University of Texas |
1994 |
| Spring Lecturer, Department of Astrophysical Sciences, Princeton University |
1990 |
| Visiting Fellow, Leiden Observatory, University of Leiden |
1982 |
| Hendrik de Waard Lecture, Faculty of
Mathematics & Natural Sciences, U. Groningen |
2009 |
| Grubb-Parsons Lecture, Department of Physics,
University of Durham |
2009 |
| Joseph Larmor Lecture, Cambridge Philosophical Society |
2007 |
| Faculty, Ninth Vatican Summer School in Observational Astronomy & Astrophysics |
2002 - 2003 |
| Whitford Lecturer, Department of Astronomy, University of Wisconsin |
2002 |
| Lecturer, IAG Advanced School on Star Formation, Sao Paolo, Brazil |
1998 |
| Lecturer, Jerusalem Winter School in Theoretical Physics |
1997 - 1998 |
| Lecturer, 26th Saas Fee Advanced Course |
1996 |
| Lecturer, Les Houches Summer School |
1996 |
| Lecturer, 3rd Latin American Conference on
Extragalactic Astronomy, Cordoba, Argentina |
1996 |
| Lecturer, Canary Islands Winter School in Astronomy |
1991 |
| Chair, Herschel Space Observatory Users Group |
2009 - pres. |
| Member, STFC Groundbased Astronomy Facilities
Review Panel |
2009 |
| Member, NRC/NAS Astronomy 2010 Decadal Survey Committee |
2008 - 2010 |
| Member, Section 12 Nominating Committee,
National Academy of Sciences |
2008 - 2011 |
| Member, National Radio Astronomy Observatory
Visiting Committee |
2008 - pres. |
| Astrophysics Series Editorial Board, Cambridge
University Press |
2007 - pres. |
| Member, International Advisory Board,
Netherlands Research School for Astronomy (NOVA) |
2007 - pres. |
| Member, Wissenschaftlicher Beirat, Astrophysikalisches Institut Potsdam |
2006 - 2010 |
| Member, RAS Awards Committee |
2008 - 2009 |
| Member, European Southern Observatory OPC Nominating Committee |
2007 - 2009 |
| Member, Astrophysics Subcommittee to NASA Advisory Council |
2006 - 2009 |
| Member, Scientific Advisory Committee, European Virtual Observatory Project |
2006 - 2009 |
| Chair, Hubble Space Telescope Time Allocation Committee |
2008 |
| Member, STFC Programmatic Review Groundbased Astronomy Panel |
2008 |
| Member, NASA Astrophysics Program Senior Review Committee |
2008 |
| Member, MNRAS Editor Search Committee |
2008 |
| International Advisory Committee, Chinese Journal of Astronomy and Astrophysics |
2002 - 2008 |
| Panel Chair and Member, Hubble Space Telescope Time Allocation Committee |
2007 |
Member and Panel Co-Chair, Science Vision
Working group, ASTRONET European Decadal survey in Astronomy/Astrophysics |
2006 - 2007 |
| Editor-in-Chief, The Astrophysical Journal |
1999 - 2006 |
| Member, Gemini Observatory Visiting Committee |
2004 - 2005 |
| Member, NSF National Virtual Observatory Advisory Committee |
2002 - 2006 |
| Member, Spitzer Legacy Science Working Group |
2001 - 2006 |
| Member, NASA Science Mission Directorate Evaluation Team |
2004 - 2005 |
| Member, Hubble Space Telescope Science Institute Council |
2000 - 2004 |
| Chair, STScI Director Search Committee |
2004 - 2005 |
| Member, MMT Observatory Director Search Committee |
2003 - 2004 |
| Chair, NSF Astronomy Early Career Award Selection Committee |
2003 |
| Member, European Southern Observatory Visiting Committee |
1997 - 2003 |
| Member, NASA Future Space UV-Optical Telescope Study Working Group |
2002 - 2003 |
| Member, Carnegie Observatories Visiting Committee |
2002 |
| Member, External Review Committee, CWRU Astronomy Department |
2004 |
| Vice President, American Astronomical Society |
1998 - 2001 |
| Member, NGST Interim Science Working Group |
2000 - 2001 |
| Member, Steward Observatory Council | 1989 - 2005 |
| Member, NOAO Director Search Committee | 2000 |
| Member, External Review Committee, Michigan State University Astronomy Program |
2000 |
| Member, NAS/NRC Committee on Astronomy and Astrophysics |
1998 - 2001 |
| Member, NSF Extragalactic Astronomy & Cosmology Program Peer Review Panel |
2000 |
| Member, American Astronomical Society Executive Committee |
1999 - 2001 |
| Member, AURA Nominating Committee |
1998 - 2000 |
| SOC Member, From Stars to Galaxies, Gainesville, Florida, USA |
2009 - 2010 |
| SOC Member, SFR@50: Filling the Cosmos with Stars, Spineto, Italy |
2008 - 2009 |
SOC Member, Unveiling the Mass: Extracting
and Interpreting Galaxy Masses, and a Celebration of Vera
Rubin's Career, Halifax |
2008 - 2009 |
| SOC Member, Gas and Stars in Galaxies: a Multi-Wavelength 3D Perspective, ESO |
2007 - 2008 |
| SOC Member, Galaxy Evolution: Emerging Insights and Future Challenges, Austin |
2008 |
| SOC, LOC Member, Putting Gravity to Work:
From Black Holes to Galaxy Clusters, Cambridge |
2007 - 2008 |
| SOC Member, The Evolving Interstellar Medium in the Milky Way and Nearby Galaxies, Pasadena |
2007 |
| SOC Member, Legacy of Multiwavelength Surveys, Xining, China |
2007 |
| SOC Member, Astrophysics in the Next Decade: JWST and Concurrent Facilities, Tucson |
2006 - 2007 |
| SOC Member, Formation and Evolution of Galaxy Disks, Rome |
2005 - 2007 |
| SOC Member, Gas Accretion and Star Formation in Galaxies, Garching |
2006 - 2007 |
| SOC Member, Pathways Through an Eclectic Universe, Tenerife |
2005 - 2007 |
| SOC Member, Galaxies in the Local Volume, Sydney |
2006 - 2007 |
| SOC Member, Dwarf Galaxies as Astrophysical and Cosmological Probes, Ringberg |
2005 - 2006 |
| SOC Member, Island Universes: Galaxy
Disks and Disk Galaxies, Terschelling |
2004 - 2005 |
| SOC Member, Extreme Starbursts Near and Far, Lijiang, China |
2004 - 2005 |
| SOC Member, Extra-Planar Gas, Dwingeloo, Netherlands |
2003 - 2004 |
SOC Co-Chair, AURA/NASA/ESA Workshop
Hubble's Science Legacy: Future Visible/UV Astronomy from Space, Chicago |
2001 - 2002 |
| Director and Head of Department, Institute of
Astronomy, University of Cambridge |
2008 - pres. |
| Member, Investments Advisory Committee, Churchill College |
2009 |
| Member, Council of the School of Physical
Sciences, University of Cambridge |
2008 - pres. |
| Member, Faculty Board for Physics and Chemistry,
University of Cambridge |
2008 - pres. |
| Member, Needs Committee, Faculty of Physics & Chemistry, University of Cambridge |
2008 - pres. |
| Member, Degree Committee for Physics & Chemistry, University of Cambridge |
2008 - pres. |
Member and Chair (2006 - 07), Faculty Promotions
Committee (Physics & Chemistry), University of Cambridge |
2005 - pres. |
| Member, Board of Discipline, Churchill College, Cambridge |
2008 - pres. |
| Member, Advisory Board, Kavli Institute for Cosmology, University of Cambridge |
2007 - pres. |
| Member, Professorial Search Committee, Leiden Observatory |
2007 - 2008 |
| Member, Sackler Visitor and Lecture Committee, IoA |
2006 - pres. |
| Member, Institute of Astronomy Teaching Committee |
2006 - pres. |
| Chair, Strategic Review of IoA and Cavendish Astrophysics Programs |
2006 - 2007 |
| Member, IoA Faculty Search and Selection Committee |
2005 - 2006 |
| Academic Director, Department of Astronomy, University of Arizona |
1990 - 1998 |
| Member, College of Science Advisory Committee for Science Teacher Education Program |
1994 - 1998 |