ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

Gaia was launched on December 19, 2013, and began scanning the stars in July 2014. It mapped over two billion stars, ...

Milky Way stars that are high and low in metallicity have been mapped by the ESA Gaia mission. [Gaia spacecraft: Mapping the ...

Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Giant radio galaxies are cosmic megastructures that can span millions of light-years, making them some of the largest-known ...

Cornwall has made the top ten places in the world to stargaze with searches to witness phenomenon such as the northern lights ...

NASA will host a news conference at 12 p.m. EST Friday, Jan. 31, to discuss a new telescope that will improve our ...