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

The Andromeda galaxy is our closest galactic neighbour, barring dwarf galaxies that are gravitationally bound to the Milky ...

Gaia, the European Space Agency’s observatory that is mapping the Milky Way, has completed the sky-scanning phase of its mission - and its fuel is now nearly empty.

But only one galaxy stands out as the most important nearby stellar island to our Milky Way—the magnificent ... "This was probably due to a collision with another galaxy in the neighborhood." ...

to finding evidence for an ongoing collision with the Sagittarius dwarf galaxy today, Gaia is rewriting the Milky Way's history and making predictions about its future. In the process of scanning ...

An ultra-deep image from the National Science Foundation's Dark Energy Camera reveals a wide variety of galaxies in the unusual Antlia Cluster.

Surprising discovery: NASA reveals a planet is disintegrating in an unprecedented way ... galaxy in our cosmic neighborhood, is approaching us at a speed of 400,000 kilometers per hour. The ...

Leo P, a small galaxy and a distant ... all isolated from the Milky Way -- and they all show a similar pattern," McQuinn said. Observations of the dwarf galaxies within the Local Group, however ...

Astronomers say Andromeda will smash into our own Milky Way galaxy in about 4.5 billion years' time, in an event dubbed the Andromeda-Milky Way collision.

This image from NASA’s James Webb Space Telescope shows a portion of the Leo P dwarf galaxy ... Leo P, a small galaxy and a distant neighbor of the Milky Way, is lighting the way for astronomers ...