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 Astrobio (2) Solar System/Planetary Sci (1) Star Formation & Evolu (1) (-) Interstellar Me (2) (-) Heliophy (1) State AB (1) CA (2) CO (2) NM (1) NY (1) PA (1) VT (1) (-) MD (2) Facet State City Bethesda (1) Damascus (1) Facet City Membership Class Div Affil - DPS (2) F (4) Full Member (2) GR (1) (-) E (2) Facet Membership Class Division LAD (2) HEAD (1) SPD (1) (-) DPS (2) Facet Division Showing 1-2 of 2 results John Cooper E Affiliation NASA Goddard Space Flight Center State/Province MD Country United States Hal Heaton E Affiliation Johns Hopkins Univ. (Ret.) State/Province MD Country United States