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 (2) Cosmo (1) Galaxy Formation & Evolu (1) State Facet State City Baltimore (3) Bethesda (2) Boulder (1) Chevy Chase (1) College Park (1) Ellicott City (1) Fairfax (1) Greenbelt (13) Laurel (4) Marriottsville (1) Potomac (1) Silver Spring (1) Washington (1) White Hall (1) Facet City Membership Class Facet Membership Class Division Facet Division