The European Space Agency's Milky Way-mapper Gaia has completed the sky-scanning phase of its mission, racking up more than 3 trillion observations of about 2 billion stars and other objects over the ...
The Gaia space telescope, launched by the European Space Agency (ESA) in December 2013 with the aim of creating a detailed three-dimensional map of the Milky Way galaxy, has observed about 2 billion ...