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 Heliophy (2) Astronomy Educa (1) Solar System/Planetary Sci (1) Star Formation & Evolu (1) (-) Interstellar Me (1) State CA (1) MD (3) OR (1) TX (1) (-) NM (1) Facet State City Los Alamos (1) Facet City Membership Class (-) Full Member (1) Facet Membership Class Division HEAD (2) DPS (1) (-) 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