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

Exoplanets have captured the imagination of the public and scientists alike and as the search continues for more, researchers ...

The plasma jets of this cosmic giant span 3.3 million light-years from end to end - over 32 times the size of the Milky Way ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

To celebrate the 100-year Edwin Hubble discovery that Andromeda was a galaxy outside our own, astronomers release the most ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

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

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

High radiation during a time of frenzied star formation in the Milky Way left one stellar population with few chances to form planets, a study reports.

Messier 31 is located 2.5 million light-years away from Earth and was a much bigger target in the sky than the galaxies ...

But only one galaxy stands out as the most important nearby ... models of Andromeda's merger history and disk evolution. Though the Milky Way and Andromeda formed presumably around the same time many ...