The Andromeda Galaxy, our Milky Way’s colossal neighbor, lies 2.5 million light-years away yet shines visibly in dark skies.

A tiny, newly discovered galaxy being shredded by the gravity of the Milky Way is our galaxy's closest known neighbor, residing just 42,000 light-years from the Milky Way's center.

The Milky Way could be surrounded by dozens of yet-undetected satellite galaxies. Scientists are using advanced simulations to predict the existence of these invisible structures. Satellite ...

The nearest galaxy to our own Milky Way has been revealed. It is so close that the Milky Way is gradually consuming it by pulling in its stars. But it will be few billion years before it is ...

The Andromeda Galaxy, a spiral galaxy 2.5 million light-years away, is something of a big sister to our own Milky Way. NASA/JPL-Caltech/UCLA Join Our Community of Science Lovers!

There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to ...

The Large Magellanic Cloud, a close neighbor to the Milky Way, may house a giant black hole. It's the closest supermassive black hole outside of our galaxy.

What does the Milky Way look like?. Sometimes, the billions of stars comprising our home galaxy appear especially vibrant during “Milky Way season” as the band arcs across the night sky. The ...

The SMC remains one of the closest galaxies to the Milky Way. This proximity allowed the research team to identify and track approximately 7,000 massive stars within the galaxy.

It's the so-called "Milky Way season" in the Northern Hemisphere. Here's everything you need to know about viewing the galaxy's core this summer.