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.

Warning: This graphic requires JavaScript. Please enable JavaScript for the best experience. The Andromeda galaxy is the galaxy next door, a very faint, fuzzy thing ...

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

The Andromeda galaxy, our closest spiral neighbor to the Milky Way, becomes prominently visible in the night sky during October 2025, making it an ideal month for stargazers to observe this stunning ...

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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 ...