By studying what makes the Milky Way unique, astronomers are hoping to understand our galaxy’s past and unravel the mystery ...

We are entering a new era of cosmic exploration. The new Vera C Rubin Observatory in Chile will transform astronomy with its ...

The Milky Way's system of small, orbiting satellite galaxies is quite unusual, a new 12-year study of other galaxies in the local universe has found. The Satellites Around Galactic Analogs (SAGA ...

Galaxies have an overall internal motion called disk velocity. It’s how gas, dust, and stars move around the galactic center.

But most astronomers agree that there should be many more, currently unknown, satellite galaxies out there. Based on our current understanding of dark matter — which doesn't react with light but ...

Milky Way viewing is at its best right now, especially if you’re in the southern hemisphere. Here's what to look out for, ...

Smaller satellite galaxies we see around larger galaxies like Andromeda or our own Milky Way are thought, essentially, to be there because they haven't fallen in quite yet.

"Satellite galaxies are gravitationally bound to the Milky Way," Graur said. "The Milky Way keeps pulling on them gravitationally. Slowly, it pulls them in.

Though it is a full-fledged galaxy, Andromeda XXXV is small enough to be ensnared by the gravitational pull of Andromeda—much like the satellite galaxies of the Milky Way.

The study also suggests a correlation between the most massive satellites and the total number of satellites in a system. The researchers found that systems with the most massive satellite galaxies — ...

The Milky Way's system of small, orbiting satellite galaxies is quite unusual, a new 12-year study of other galaxies in the local universe has found. Skip to main content.