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 (2) Facet State City Adelphi (1) Alexandria (2) Annapolis (1) Baltimore (18) Boulder (1) Bowie (1) Brockport (1) Cambridge (1) Catonsville (1) Central (1) Clemson (1) College Park (8) Columbia (1) Crownsville (2) Derwood (1) Ellicott City (1) Greenbelt (51) Hyattsville (1) La Jolla (1) Lanham (1) Melbourne (1) Middle River (1) Mountain View (1) Pasadena (1) Potomac (1) Rome (1) Scaggsville (1) Severna Park (1) Sykesville (1) Washington (5) (-) Silver Spring (2) Facet City Membership Class Full Emeritus Member (1) Full Member (1) Facet Membership Class Division DPS (3) DDA (2) SPD (1) (-) HEAD (2) Facet Division Showing 1-2 of 2 results John Hornstein Full Emeritus Member Affiliation State/Province MD Country United States Haocheng Zhang Full Member Affiliation UMBC/NASA GSFC State/Province MD Country United States