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 (17) High-Energy Pheno (17) Supernovae (17) Star Formation & Evolu (12) Clusters of Galaxies/Large-scale Struc (9) Cosmo (8) Interstellar Me (8) Astronomy Educa (6) Galaxy Formation & Evolu (6) Exopla (5) Heliophy (5) Galactic Structure & Stellar Populat (4) Solar System/Planetary Sci (4) (-) Astrobio (1) State AL (1) AZ (1) CA (5) CT (1) IL (1) MD (3) NM (2) NY (1) OH (1) TX (1) (-) MA (1) Facet State City Cambridge (1) Facet City Membership Class Full Emeritus Member (1) Facet Membership Class Division DPS (3) DDA (2) HAD (2) SPD (1) (-) HEAD (1) Facet Division Showing 1-1 of 1 results George Clark Full Emeritus Member Affiliation MIT State/Province MA Country United States