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 Astrobio (1) Exopla (1) Solar System/Planetary Sci (1) State Facet State City Alexandria (1) Baltimore (14) Crownsville (1) Ellicott City (1) Germantown (1) Greenbelt (3) Marriottsville (1) Middle River (1) Mountain View (1) Socorro (1) Washington (3) Facet City Membership Class Facet Membership Class Division Facet Division