Add Yahoo as a preferred source to see more of our stories on Google. Researchers have long thought that the Milky Way would collide with the Andromeda galaxy in four to five billion years. This ...

Add Yahoo as a preferred source to see more of our stories on Google. The Andromeda galaxy, left, is about to collide with part of the Milky Way, as seen from Earth, in a hypothetical merger scenario.

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NASA's Hubble telescope reveals the Andromeda Galaxy has been forming fewer new stars for 500 million years. Here's why the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This illustration shows a stage in the predicted merger ...

Andromeda has slowed its star-forming rate over the last 40 million years. Scientists think they finally know why.

Scientists discovered the Andromeda galaxy, known as M31, hundreds of years ago, and around a century ago, we realized that it had negative radial velocity toward the Milky Way. In other words, ...

For years, astronomers have predicted a dramatic fate for our galaxy: a head-on collision with Andromeda, our nearest large galactic neighbor. This merger—expected in about 5 billion years—has become ...

The Milky Way and Andromeda have appeared locked on a destructive course for decades. Now, thousands of simulations suggest ...

There's a 50% chance that the predicted head-on collision will end in a galactic merger, according to a new study. Reading time 2 minutes For decades, astronomers have predicted that, in approximately ...

A recent paper reveals we're almost certainly going to collide with a galaxy in the next couple billion years, but it's not the one we thought. Reading time 2 minutes For over a decade, researchers ...

The Andromeda galaxy, left, is about to collide with part of the Milky Way, as seen from Earth, in a hypothetical merger scenario. Credit: NASA illustration "Based on the best available data, the fate ...