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 Astronomy Educa (4) Exopla (2) Interstellar Me (2) Solar System/Planetary Sci (2) Star Formation & Evolu (2) Active Galactic Nu (1) Astrobio (1) Cosmo (1) Galactic Structure & Stellar Populat (1) Galaxy Formation & Evolu (1) GRBs (1) Heliophy (1) High-Energy Pheno (1) Supernovae (1) (-) Clusters of Galaxies/Large-scale Struc (1) State AL (1) CA (3) CO (2) CT (1) HI (1) IA (1) IN (1) NE (1) OR (1) PA (1) TX (1) (-) MA (1) Facet State City Cambridge (1) Facet City Membership Class AM (1) F (11) Full Member (2) GR (2) Undergrad Student (1) (-) 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