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 State Facet State City Bethesda (1) Greenbelt (3) Laurel (1) Marriottsville (1) Silver Spring (1) Towson (1) Facet City Membership Class F (1) Facet Membership Class Division Facet Division