ESO helps map the Galaxy
ESO's VLT Survey Telescope (VST) has been tracking a satellite...
...to help map the Milky Way.
The European Space Agency's Gaia spacecraft scans the sky from orbit...
...measuring the locations and movements of over a billion stars in the Milky Way.
The VST's observations of Gaia refine knowledge of its orbit...
...and allow it to build an unprecedented 3D map of our stellar neighbours.
Transcribed by ESO; translated by –