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 Active Galactic Nu (1) GRBs (1) High-Energy Pheno (1) (-) Supernovae (1) State (-) MD (1) Facet State City Alexandria (1) Baltimore (6) Boulder (1) Catonsville (1) College Park (2) Crownsville (1) Derwood (1) Ellicott City (1) Greenbelt (8) Hyattsville (1) Melbourne (1) Paterswolde (1) Scaggsville (1) Washington (3) (-) Silver Spring (1) Facet City Membership Class Full Member (1) Facet Membership Class Division DDA (1) (-) HEAD (1) Facet Division Showing 1-1 of 1 results Haocheng Zhang Full Member Affiliation UMBC/NASA GSFC State/Province MD Country United States