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Gaia

A Gaia satellite, a European Space Agency mission, is depicted against a starry backdrop, showcasing its solar panels extended and its spherical body with intricate details.

A European Space Agency astrometric mission, launched in 2013 and operating from the Sun-Earth L2 point. Gaia has measured the positions, distances and motions of nearly two billion stars to microarcsecond precision — the most detailed three-dimensional map of the Milky Way ever produced. Its data releases have reshaped fields from stellar evolution to dark-matter modelling.

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