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 (6) Galaxy Formation & Evolu (4) Active Galactic Nu (3) Clusters of Galaxies/Large-scale Struc (3) GRBs (3) High-Energy Pheno (3) Supernovae (3) Star Formation & Evolu (2) Exopla (1) State Facet State City Facet City Membership Class Facet Membership Class Division Facet Division