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 (4) Astronomy Educa (3) Star Formation & Evolu (3) Galactic Structure & Stellar Populat (2) Galaxy Formation & Evolu (2) Heliophy (2) Active Galactic Nu (1) Astrobio (1) Cosmo (1) Exopla (1) GRBs (1) High-Energy Pheno (1) Interstellar Me (1) (-) Supernovae (1) State AB (1) GA (1) (-) CA (1) Facet State City San Ramon (1) Facet City Membership Class Full Member (2) Graduate Student (3) (-) Full Emeritus Member (1) Facet Membership Class Division HEAD (3) DPS (1) (-) HAD (1) Facet Division Showing 1-1 of 1 results Cynthia Cheung Full Emeritus Member Affiliation NASA's GSFC State/Province CA Country United States