Member Directory The AAS maintains a membership directory to facilitate member interaction and to support the conduct of official Society business. Search directory for: Filter Results By Clear Filters Type of Science GRBs (3) High-Energy Pheno (3) Supernovae (3) Clusters of Galaxies/Large-scale Struc (2) Galaxy Formation & Evolu (2) Solar System/Planetary Sci (2) Star Formation & Evolu (2) Active Galactic Nu (1) Astrobio (1) Astronomy Educa (1) Cosmo (1) Exopla (1) Galactic Structure & Stellar Populat (1) Heliophy (1) (-) Interstellar Me (1) State MD (1) NM (1) WI (1) (-) MA (1) Facet State City Cambridge (1) Facet City Membership Class Full Member (7) (-) Full Emeritus Member (1) Facet Membership Class Division (-) HEAD (1) Facet Division Showing 1-1 of 1 results George Clark Full Emeritus Member Affiliation MIT State/Province MA Country United States