ハーバード・スミソニアン天体物理学センター
He was a member of the EFAR project, a detailed study of the peculiar velocity distribution of a large number elliptical-rich galaxy clusters. At the Harvard–Smithsonian Center for Astrophysics he developed 3d visualization software that was used in the 40-minute film, "So Many Galaxies...So Little Time," which was on display at the National Air and Space Museum.