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 GRBs (1) High-Energy Pheno (1) Supernovae (1) (-) Active Galactic Nu (1) State (-) MD (1) Facet State City Alexandria (1) Baltimore (7) Boulder (1) Catonsville (1) Crownsville (1) Greenbelt (6) Severna Park (1) (-) Silver Spring (1) Facet City Membership Class Full Member (1) Facet Membership Class Division (-) HEAD (1) Facet Division Showing 1-1 of 1 results Haocheng Zhang Full Member Affiliation UMBC/NASA GSFC State/Province MD Country United States