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 Star Formation & Evolu (10) Solar System/Planetary Sci (6) Astronomy Educa (5) Galactic Structure & Stellar Populat (3) Heliophy (2) Astrobio (1) Clusters of Galaxies/Large-scale Struc (1) Cosmo (1) Exopla (1) Galaxy Formation & Evolu (1) GRBs (1) Supernovae (1) (-) High-Energy Pheno (1) State CA (1) Facet State City San Ramon (1) Facet City Membership Class Amateur Affiliate (2) E (2) ED (1) Educator Affiliate (1) F (7) Full Member (3) GR (7) Graduate Student (4) International Affil (2) JR (3) Undergrad Student (5) (-) Full Emeritus Member (1) Facet Membership Class Division HEAD (5) 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