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 Cosmo (1) (-) Solar System/Planetary Sci (1) State (-) MD (1) Facet State City Alexandria (1) Baltimore (18) Bern (1) Bethesda (3) Boulder (1) Cambridge (1) Chevy Chase (1) College Park (8) Ellicott City (1) Gaithersburg (2) Germantown (1) Greenbelt (12) Hampstead (1) Hanover (1) Houston (1) Laurel (8) Marina (1) Marriottsville (1) Potomac (1) Rockville (1) San Marcos (1) Silver Spring (3) Tempe (1) Tucson (1) Washington (3) (-) Glenn Dale (1) Facet City Membership Class Full Member (1) Facet Membership Class Division Facet Division Showing 1-1 of 1 results Edward Cheng Full Member Affiliation Conceptual Analytics State/Province MD Country United States