After more than a decade of mapping billions of stars across the Milky Way and beyond, a groundbreaking spacecraft is retiring. The European Space Agency’s space-based observatory known as Gaia is ...

This observatory has probably been the most transformative astronomy project of the 21st century, but there’s a good chance you’ve never heard of it. Just last week, for instance, the Hayden ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Artist impression of ESA's ...

Europe's star-mapping Gaia space observatory has entered its final orbit, after gathering valuable cosmic data for more than a decade. The spacecraft's control team at the European Space Operations ...