A SUMMARY of the most up-to-date knowledge of the galaxy is provided by an article ... commencing with Glydén's discovery in 1871 of the galactic rotation effect in stellar proper motions ...

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 questions below. Remember to log in to put your name on the leaderboard and ...

An artist's impression of the Milky Way, seen edge-on ... “Even basic ideas have been revised, such as the rotation of our galaxy’s central bar, the warp of the disc, the detailed structure ...

The Bullseye galaxy is two and a half times the size of our Milky Way and has nine rings. Fifty million years ago, two galaxies met up in space. One was tiny, the other large. The small galaxy ...

The Fermi Bubbles, massive shockwaves from a black hole eruption, still expand over the Milky Way. This event reshaped our ...

By that metric, the ESA's Gaia mission is a resounding success. The spacecraft gave us a precise, 3D map of our Milky Way galaxy and has forced us to abandon old ideas and replace them with compelling ...

"It's easy to romanticize Hubble and his discovery of the universe beyond the Milky Way galaxy, but his work really stood on the shoulders of a number of people," said Jeff Rich, an astronomer at ...

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 ...

"It contains major changes from previous models, because Gaia has changed our impression of the Milky Way. Even basic ideas have been revised, such as the rotation of our galaxy's central bar ...

But only one galaxy stands out as the most important nearby stellar island to our Milky Way -- the magnificent Andromeda galaxy (Messier 31). It can be seen with the naked eye on a very clear ...

In early 1920s astronomy, most researchers believed our Milky Way was the entire universe. They assumed those faint spiral patches in the sky were just cloudy formations within our own galaxy. Little ...

The European Space Agency's (ESA) Gaia telescope has completed its objective - making the most detailed and precise map of the Milky Way galaxy. The agency shared the visuals on social media, ...