The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...

A sideways spiral galaxy shines in this NASA/ESA Hubble Space Telescope image. Located about 60 million light-years away in ...

Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The cosmic community of Abell 1489 comes into focus in this image of the galaxy cluster taken by ...

NASA's Chandra X-ray Observatory has revealed stunning cosmic structures within galaxy clusters, like bubbles and waves, ...

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 ...

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 ...

Scientists search for "decaying" dark matter (DDM) because it offers unique signatures like specific X-ray or gamma-ray lines ...

What can heat distribution within galaxy clusters, which often consist of hundreds to thousands of galaxies, teach astronomers about their formation and evolution? This is what a recent study ...

The Hercules Galaxy Cluster, designated Abell 2151, is a rich northern cluster of galaxies located 500 million light-years distant, officially cataloged by George O. Abell. A notable feature of Abell ...

Each coloured circle depicts a galaxy group or cluster. The richest galaxy clusters are marked in red; these are the richest galaxy clusters in the Hercules and Leo superclusters. The side panels show ...