Roughly 2.8 billion light-years from Earth, two galaxy clusters are engaged in a cosmic tussle. These enormous structures last collided about a billion years ago, but now, it appears they’re going ...

James Webb Space Telescope imagery of Pandora’s Cluster (Abell 2744) delivers three galaxy clusters and so much more. Take a ...

Add Yahoo as a preferred source to see more of our stories on Google. Artist's impression of a forming galaxy cluster in the early universe: radio jets from active galaxies are embedded in a hot ...

The cluster is very bright at X-ray wavelengths and is one of the most extensively studied galaxy clusters at X-ray and radio ...

Researchers working with data from the South Pole Telescope have released a major catalog of galaxy clusters, giving ...

Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand individual galaxies and huge reservoirs of superheated, X-ray-emitting gas. The ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's James Webb Space Telescope (JWST) has produced a new image of the Bullet Cluster, which is a titanic collision between two ...

Astronomers studying a distant galaxy cluster stumbled upon ancient radio signals that might hold clues to the formation of the early universe. While studying the distant galaxy cluster known as ...

Most astronomers agree that young galaxy clusters should be relatively cool compared to older ones. But researchers recently found a very young... A galaxy cluster hotter than the surface of the sun ...

The discovery of the most distant galaxy cluster with a specific important trait – as described in our press release – is providing insight into how these gigantic structures formed and why the ...

Astronomers have explained how a galaxy cluster maintains its heat, despite emitting X-rays that cool the hot gas at its center. The group discovered the existence of a fast-moving, high-temperature ...

Only one billion years after the Big Bang, clusters of galaxies were already forming. This discovery pushes back the age of the youngest known galaxy cluster by a third, and shows that the largest ...