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 Active Galactic Nu (21) GRBs (21) High-Energy Pheno (21) Supernovae (21) Star Formation & Evolu (14) Cosmo (10) Astronomy Educa (8) Clusters of Galaxies/Large-scale Struc (8) Interstellar Me (7) Galaxy Formation & Evolu (6) Galactic Structure & Stellar Populat (5) Exopla (4) Heliophy (4) Solar System/Planetary Sci (4) (-) Astrobio (1) State AZ (1) CA (3) CT (1) IL (1) IN (1) MD (5) NM (3) NY (1) OH (2) (-) MA (1) Facet State City Cambridge (1) Facet City Membership Class Full Emeritus Member (1) Facet Membership Class Division DDA (1) DPS (1) HAD (1) (-) HEAD (1) Facet Division Showing 1-1 of 1 results George Clark Full Emeritus Member Affiliation MIT State/Province MA Country United States