It seems like everything orbits something in space. Moons orbit planets. Planets orbit stars. Stars orbit the centers of galaxies. But beyond that, things get a little harder to visualize. Do galaxies ...

Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.

Learn how many suns exist in the Milky Way and how to understand how many sun-like stars are out there could help us ...

For decades, astronomers have known that stars orbit the Milky Way’s centre and that the galactic disc is warped.

The Vera Rubin Observatory (VRO) hasn't yet begun its much-anticipated Legacy Survey of Space and Time. But it saw its first ...

A long-term survey of small, “satellite” galaxies that orbit larger galaxies across the universe offers new insights into our own galaxy, the Milky Way. Since 2012, the Satellites Around Galactic ...

Our Milky Way is far from calm — it ripples with a colossal wave spanning tens of thousands of light-years, revealed by ESA’s ...

NEW YORK — Scientists have spotted what appear to be two stars whipping around each other near the supermassive black hole at the center of our Milky Way galaxy. Nearly every large galaxy has a ...

As far as black holes go, there are two categories: supermassive ones that live at the center of the galaxies (and we’re unsure about how they got there) and stellar mass ones that formed through the ...

Astronomers have traced the 12-billion-year journey of interstellar comet 3I/ATLAS, believed to be the oldest comet ever ...

The star S0–6 appears to have traveled 50,000 light-years from a now-extinct galaxy to reach the supermassive black hole at the heart of the Milky Way When you purchase through links on our site, we ...

At larger scales, things get a little more complicated. Our galaxy is part of a collection of galaxies called the Local Group, which includes the Milky Way; the Andromeda galaxy; a smaller spiral ...