ESA BR-296 Gaia: ESA’s galactic census

16 August 2012

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.
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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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