Our Milky Way galaxy is a cannibal. You might wonder what would happen if our disk-shaped spiral galaxy were to one day collide with Andromeda, which is over twice the size of the Milky Way.

The Andromeda galaxy, our cosmic neighbor, is far more turbulent than previously thought. A new survey by the Hubble Space ...

A new study of M31, also known as Andromeda, explains how our cosmic neighbor kills off smaller nearby galaxies.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. When will the Milky Way collide with the Andromeda Galaxy?

An ambitious new survey by the Hubble Space Telescope provides the first-ever bird's-eye view of all known dwarf galaxies orbiting the Andromeda galaxy. The results reveal that over billions of years, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A collision between ...

Scientists from Helsinki, Durham and Toulouse universities used data from NASA’s Hubble and the European Space Agency’s Gaia space telescopes to simulate how the Milky Way and Andromeda will 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. Researchers have long thought that the Milky Way ...

The Hubble Space Telescope has produced the most comprehensive survey of the Andromeda galaxy, revealing new clues about its history. The Hubble survey, assembled from over 1,000 orbits and spanning a ...

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A cosmic train wreck may be looming in our future. The Andromeda galaxy, a near twin of our Milky Way, is barreling toward us. You can already see it coming if you know where to look—Andromeda’s great ...

The Milky Way's closest neighbor shines in a spectacular new astrophotography portrait. Astrophotographer Ronald Brecher has captured a stunning image of our neighboring spiral galaxy, Andromeda, ...