Abell S1063 is so massive that the light from distant galaxies bends around it, allowing it to act as a magnifying glass to ...

Scientists using the XRISM satellite have uncovered a major clue to one of astronomy’s longstanding mysteries: why galaxy ...

A young galaxy cluster spotted by the Chandra X-ray Observatory may have gotten a head start on "relaxing" before is galactic siblings. Astronomers have discovered a galaxy cluster that appears to ...

A study published in Astronomy & Astrophysics has identified four previously unknown primordial open cluster (OC) groups in ...

Astronomers used both telescopes to observe the galaxy cluster MACS-J0417.5-1154 ... Webb is allowing us to study what the teenage years of our own galaxy would have been like," said astronomer ...

A sweeping cosmic census from the James Webb Space Telescope has unveiled nearly 1,700 galaxy groups—marking the deepest and ...

The early universe was a stressful place for galaxies. Globs of tens to hundreds of neighboring galaxies, called galaxy clusters, would share a communal pool of hot gas—but not without drama.

The core of the cluster is suffused with the pale blue light of countless stars, and a handful of particularly bright foreground stars are adorned with crisscrossing diffraction spikes. NGC 6652 lies ...

Let's start with the galactic elephant in the room: the colossal galaxy cluster at the center of the image. The focal point of Webb's deep field image is a large, bright cluster of galaxies known ...

A new paper opens a window on the largest astronomical event in the known universe: the merging of two galaxy clusters. It finds that during the galactic crunch, just one side exerts as much energy as ...

This ultra-deep view of the Antlia Cluster reveals a spectacular array of galaxy types among the hundreds that make up its population. Galaxy clusters are some of the largest known structures in ...