Gaia is a mission to catalogue the night sky, taking a census of millions of stars and recording their positions and other details many times over the expected lifetime of five years. The resulting database will allow astronomers to trace the history of the...
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Gaia is a mission to catalogue the night sky, taking a census of millions of stars and recording their positions and other details many times over the expected lifetime of five years. The resulting database will allow astronomers to trace the history of the Milky Way. This brochure describes the satellite and the mission, and introduces the science behind it.
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