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

A short historical outline of the subject is given, commencing with Glydén's discovery in 1871 of the galactic rotation effect in stellar proper motions, and dealing finally with recent research ...

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

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

The intrepid mapping mission has collected more than three trillion observations that'll change the way we see our neck of ...

In the nothingness' Like most galaxies in the universe, the Milky Way spins like water in a whirlpool, and its rotation is driven, in part, by all the matter that swirls within its disk.

Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

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.

The European Space Agency's Milky Way-mapper Gaia has completed the sky-scanning phase of its mission, racking up more than 3 ...

Prior to Gaia, obtaining a robust rotation curve for our galaxy was challenging, unlike the case for external spiral galaxies. This challenge stemmed from our position within the Milky Way ...