The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On ...

NASA's Chandra Observatory has combined different wavelength images of the Andromeda galaxy to honor astronomer Vera Rubin, and then created a music video by converting the light in those images to ...

A collision between our Milky Way galaxy and the neighboring Andromeda galaxy, long considered inevitable, may be in question, astronomers say.

New data show a 50% chance the Milky Way won't collide with Andromeda. A merger with the Large Magellanic Cloud is far more likely.

Shockingly Tiny Galaxy Near Andromeda Is Just One-Millionth the Size of the Milky Way The fully formed galaxy is remarkably teeny, raising new questions about how galaxies emerge and evolve.

Astronomers have long thought that the Milky Way is headed for an inevitable crash with its neighbor, Andromeda. But a new study complicates the story.

NASA recently released images of the Andromeda galaxy, an "enticing empire of stars" that can be seen with the naked eye if weather conditions are just right.

Not so fast Before Edwin Hubble determined that Andromeda was far outside the Milky way and a galaxy in its own right, it was one of many so-called spiral nebulae believed to lie within the Milky Way.

NASA scientists have detected a massive halo of plasma surrounding the nearby Andromeda galaxy. The halo, a massive orb of influence stretching deep into space, … ...

The Milky Way galaxy may collide with the Andromeda galaxy in billions of years, creating an even bigger galaxy. Experts explain what will happen to Earth.

Astronomers have long believed that our Milky Way will eventually collide with the Andromeda galaxy. A new study suggests that we might escape that fate. The spiral Andromeda galaxy is our closest ...