Facebook post by University of Helsinki Julkaistu 14.12.2020 klo 08:03 University of Helsinki kirjoitti Facebookissa A massive endeavour by researchers results in three-dimensional mapping of our galaxy. Novel observational data by Gaia space telescope will improve satellite navigation. Gaia space telescope measured the acceleration of the Solar System | University of Helsinki l.facebook.com (ESA) released observational data from the Gaia telescope (Gaia Early Data Release 3 or EDR3) Dec. 3, 2020