After 11 years in solar orbit, the European Space Agency’s Gaia spacecraft has completed its mapping of our Milky Way Galaxy ...

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

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 ...

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

Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...

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

Astronomers have discovered two strange objects that could be young stars — except they're completely surrounded by ice.

Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

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

Issues delivered straight to your door "I expect Gaia's best results are still to come." ...

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