Sometime between 8 and 11 billion years ago, the Milky Way crashed into a dwarf galaxy that astronomers call the Gaia Sausage. You will not see the Gaia Sausage today. As far as astronomers know, its ...

An artist's concept depicts the Milky Way galaxy and its spiral shape. Our solar system is located in one of the spiral arms. - NASA/JPL-Caltech A collision between our Milky Way galaxy and its ...

The chance that our Milky Way Galaxy will collide with the Andromeda Galaxy may not be as certain as previously thought, according to researchers, who say that a new simulation has found a 50% chance ...

The Champagne Cluster is a rare and beautiful example of two galaxy clusters smashing together. Its festive name comes from both its New Year’s Eve discovery and its bubbly appearance in space. Images ...

Composite color image of the interacting galaxy cluster El Gordo, showing X-ray light from NASA's Chandra X-ray Observatory in blue, optical data from the European Southern Observatory's Very Large ...

Astronomers report that the Champagne Cluster is actually two galaxy clusters in the process of merging, based on X-ray, optical, and spectroscopic observations published in 2025 ...

Does dark matter interact with itself? The answer may lie in vast clusters of colliding galaxies. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Image: Snapshots of the time evolution of a collision of two spiral galaxies with black holes at their center from a computer simulation. Color indicates temperature and brightness the gas density.

A new model is bringing scientists a step closer to understanding the kinds of light signals produced when two supermassive black holes, which are millions to billions of times the mass of the Sun, ...

Some galaxies meant to be spirals might've been smoothed-out into clumpy ellipticals. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. If you were ...

(CNN) — A collision between our Milky Way galaxy and its largest neighbor, the Andromeda galaxy, predicted to occur in about 4.5 billion years, has been anticipated by astronomers since 1912. But new ...

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