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 CO (2) Facet State City Arecibo (1) Erie (1) Greenbelt (1) Indiana (1) Lititz (2) Mechanicsburg (1) Philadelphia (1) Pittsburgh (2) Selinsgrove (1) State College (1) Staten Island (1) University Park (5) Washington (1) Facet City Membership Class Facet Membership Class Division Facet Division