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 Astronomy Educa (2) Solar System/Planetary Sci (2) Star Formation & Evolu (2) Astrobio (1) Exopla (1) GRBs (1) Supernovae (1) (-) High-Energy Pheno (1) State CO (1) (-) CA (1) Facet State City San Ramon (1) Facet City Membership Class AM (1) E (2) F (4) Full Member (1) GR (4) Graduate Student (1) JR (2) Undergrad Student (1) (-) Full Emeritus Member (1) Facet Membership Class Division HEAD (2) 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