Additional scientific products include detection and orbital classification of tens of thousands of extra-solar planetary systems, a comprehensive survey of objects ranging from huge numbers of minor bodies in our Solar System, through galaxies in the nearby Universe, to some 500,000 distant quasars. It will also provide a number of stringent new tests of general relativity and cosmology.
Building on our experience in processing the data from the Hipparcos mission, the main involvement of the CASU group in the Gaia project is with the photometric data processing. CASU are the largest group contributing to this task - CU5 (Photometric Processing). We also provide expertise to the tasks of attitude reconstruction and variable star analysis.