By measuring the positions & motions of billions of stars, Gaia has revolutionised our understanding of the dynamics & evolution of our home galaxy.
But it has also enabled a wide range of other science, including fundamental physics, star formation, asteroids, & more, & its catalogues provides the best basic distances & other parameters used across many studies.
Its final catalogues will also enable the discovery of huge numbers of new exoplanets.
It is indispensable to modern astronomy.
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