Honors and Awards



- Centennial Medal, Harvard University, 2008 - Caroline Herschel Lecturer, Space Telescope Science Institute 2007.
- Ta-You Wu Lecturer, University of Michigan, 2007.
- TWAS, Academy of Sciences for the Developing World, 2006.
- Foreign Associate, Royal Astronomical Society, 2005.
- American Philosophical Society, 2003.
- Outstanding Scholar Award, Taiwan, 2002-2006.
- Faculty Research Lecturer, UC Berkeley 2001.
- Heineman Prize, American Institute of Physics & American Astronomical Society, 2000.
- Bruno Rossi Lecturer, Arcetri Observatory, Italy 1999.
- Brouwer Award, Division of Dynamical Astronomy, 1997.
- Oort Professor, Leiden University, 1996.
- President, American Astronomical Society, 1994-1996.
- American Academy of Arts & Sciences, 1992.
- Academia Sinica, 1990.
- US National Academy of Sciences, 1987.
- Warner Prize, American Astronomical Society 1977.