 In 1998, the Research Corporation designated him as a Cottrell Scholar.He was awarded the Helen B. Warner Prize of the American Astronomical Society in 1999 and the 2017 Dannie Heineman Prize.His invited lectureships include the 2000 Edwin Salpeter Lecture at Cornell, and the 2004 Biermann Lecture at the Max-Planck Institute for Astrophysics.