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 (1) Exopla (1) Interstellar Me (1) State DC (10) MD (5) (-) PA (1) Facet State City Arecibo (1) Erie (1) Greenbelt (1) Philadelphia (1) Pittsburgh (1) Selinsgrove (1) University Park (4) (-) Washington (1) Facet City Membership Class (-) Full Member (1) Facet Membership Class Division LAD (1) (-) DPS (1) Facet Division Showing 1-1 of 1 results Douglas Hudgins Full Member Affiliation NASA Headquarters State/Province PA Country United States