ESOcast 200 Light - ESO helps map the Galaxy

The Gaia spacecraft, operated by the European Space Agency (ESA), surveys the sky from Earth orbit to create the largest, most precise, three-dimensional map of our Galaxy ever. Observations from ESO’s VLT Survey Telescope (VST), have captured Gaia in motion as a faint series of dots trailing across the night sky. These observations were taken as part of an ongoing collaborative effort to measure Gaia’s orbit and improve the accuracy of its unprecedented star map.

https://www.eso.org/public/news/eso1908/

Credit/Courtesy: ESO