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 ...

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

That data release included stars as far out as 25 kiloparsecs, or about 81,000 light years, from the galaxy's center. Based on these data, Eilers observed that the Milky Way's rotation curve ...

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 ...

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 ...

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

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

We’re just coming up on August’s “Milky Way” window, arguably the best 10 days of the year for viewing our galaxy. So clear your diary this weekend and get outside to as dark a site as ...

"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 ...

Situated approximately 2.5 million light-years from Earth, the Andromeda Galaxy is the closest major galaxy to the Milky Way, belonging ... the most detailed rotation curve ever made for it ...

This illustration shows a stage in the predicted merger between our Milky Way galaxy and the ... [+] neighboring Andromeda galaxy, as it will unfold over the next several billion years.