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 (11) Astronomy Educa (5) Astrobio (4) Exopla (4) Clusters of Galaxies/Large-scale Struc (2) Galaxy Formation & Evolu (2) Heliophy (2) Star Formation & Evolu (2) Active Galactic Nu (1) Cosmo (1) Galactic Structure & Stellar Populat (1) Interstellar Me (1) (-) GRBs (1) (-) High-Energy Pheno (1) (-) Supernovae (1) State AB (1) GA (1) NM (1) (-) CA (1) Facet State City San Ramon (1) Facet City Membership Class Full Member (5) Graduate Student (2) Undergrad Student (1) (-) Full Emeritus Member (1) Facet Membership Class Division HEAD (3) HAD (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