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M. Shao (JPL)
SIM, the Space Interferometry Mission is a ultra high precision astrometric interferometer. Last year, NASA issued an A.O. for the SIM science team and selected 10 key projects and 5 mission scientists. Approximately 50 science observing time was allocated in this first AO. This paper has two parts, one is a brief description of how SIM works, and the second is an introduction to the science in the 10 key projects.