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

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

So how well do you know the Milky Way? Let's test your knowledge of our galaxy's size, age, speed and more with the 15 ...

In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic center.

The Gaia mission, launched by the European Space Agency, has completed a decade of groundbreaking astronomical observations, collecting over three trillion data points on two billion stars and ...

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

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

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 ...

Two Micron All-Sky Survey (2MASS) imagery was used to create a animation of the warp of the Milky Way galaxy. Credit: 2MASS, Adrian Price-Whelan ...

A trio of astronomers from the University of Tokyo and Niigata University have found what they describe as "peculiar embedded ...

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