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 ...

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.

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 ...

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

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

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 ...

The European Space Agency's (ESA) Gaia telescope has completed its objective - making the most detailed and precise map of ...

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 ...

Scientists have found the beginnings of a young universe that may offer insights into the beginnings of our own Milky Way Galaxy. Geoff Bennett and Miles O'Brien discussed why scientists are ...

Our solar system resides in a galaxy called the Milky Way, stuffed with between 100 billion and 400 billion other stars, many of them with planets of their own. The Milky Way got its name from the ...