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 Interstellar Me (1) Star Formation & Evolu (1) (-) Heliophy (1) State NM (1) Facet State City Arlington (1) Baltimore (2) Columbus (1) Greenbelt (1) Pasadena (2) Pittsburgh (1) Silver Spring (1) Staten Island (1) Tucson (1) Washington (1) (-) Los Alamos (1) Facet City Membership Class (-) Full Member (1) Facet Membership Class Division HEAD (3) (-) DDA (1) Facet Division Showing 1-1 of 1 results Ka Ho Yuen Full Member Affiliation Los Alamos National Lab State/Province NM Country United States