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?

Late October presents a perfect opportunity to spot the ancient light of the Andromeda galaxy as it climbs high overhead to brighten the autumn night sky. The Andromeda Galaxy (M31), the Milky Way's ...

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 ...

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 ...

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

Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full Moon. What backyard observers don't ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Andromeda, the Milky Way's neighboring spiral galaxy, may be a cosmic cannibal that has been ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...