ESA’s Gaia mission will produce an unprecedented 3D map of our Galaxy by mapping, with exquisite precision, the position and motion of a billion stars. The key to this is the billion-pixel camera at the heart of its dual telescope. This animation illustrates how the camera works.
See http://sci.esa.int/gaia/53281-inside-gaias-billion-pixel-camera/ for a more detailed description.
Catching speeding stars
From the Solar System to the Hyades cluster
The motion of two million stars
Starquakes are a thing and our Gaia mission has seen them #shorts
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