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 Solar System/Planetary Sci (6) Astrobio (3) Exopla (3) Astronomy Educa (2) Star Formation & Evolu (2) High-Energy Pheno (1) Supernovae (1) (-) GRBs (1) State (-) CA (1) Facet State City San Ramon (1) Facet City Membership Class F (3) Full Member (1) GR (2) (-) Full Emeritus Member (1) Facet Membership Class Division HAD (1) HEAD (1) (-) DPS (1) Facet Division Showing 1-1 of 1 results Cynthia Cheung Full Emeritus Member Affiliation NASA's GSFC State/Province CA Country United States