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 Cosmo (9) Galaxy Formation & Evolu (9) Clusters of Galaxies/Large-scale Struc (6) Star Formation & Evolu (6) GRBs (5) High-Energy Pheno (5) Solar System/Planetary Sci (5) Supernovae (5) Astronomy Educa (4) Exopla (4) Galactic Structure & Stellar Populat (4) Interstellar Me (4) Active Galactic Nu (3) Astrobio (2) Heliophy (1) State Facet State City Facet City Membership Class Facet Membership Class Division Facet Division