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 ...

Scale in the universe is hard to understand from a purely human perspective. Many times, the math just doesn't sit well with ...

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 ...

Using the James Webb Space Telescope, astronomers have spotted a massive and densely packed galaxy cluster before such structures were thought to be possible.

These clouds of radio energy are "radio relics" resulting from powerful shockwaves surging through the hot gas that fills the space amid a galaxy cluster. Credit ...

Galaxy clusters represent the most massive gravitationally bound systems in the Universe, comprising hundreds to thousands of galaxies embedded in a vast halo of dark matter and suffused by a hot, ...

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 ...

A novel "X-arithmetic" technique reveals how black holes shape the universe's largest structures.

Galaxy clusters are the largest gravitationally bound systems in the Universe and serve as critical laboratories for cosmology, astrophysics and the study of dark matter. Their mass profiles—traced by ...

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 ...

Scientists have detected a surprisingly hot galaxy cluster dating back to the universe’s infancy. The cluster formed far earlier and burned far hotter than current models predict. Researchers believe ...

It is located 27,000 light-years away in the constellation Sagittarius, and it shines like a chandelier filled with countless ...