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 Baltimore (1) Bethesda (1) Pasadena (1) Sacramento (1) Silver Spring (1) Facet City Membership Class F (1) Facet Membership Class Division DDA (1) DPS (1) Facet Division