Using NASA's Chandra X-ray space telescope, astronomers have discovered that a galaxy cluster is wrapped in an envelope of ...

A massive filament of hot gas connecting four galaxy clusters has been found by astronomers. The thread may hold part of the ...

Astronomers have captured an unprecedented image of the galaxy cluster Abell 2255, revealing intricate, radio-emitting ...

Astronomers have taken an unprecedentedly detailed look at the tendrils and filaments that wrap around supermassive black hole-dominated galaxies of Abell 2255.

Astronomers have discovered the largest known cloud of energetic particles surrounding a galaxy cluster—spanning nearly 20 ...

Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, ...

Learn how scientists found the universe's missing matter hiding in a massive cosmic filament stretching 23.5 million ...

A vast, glowing halo enveloping a galaxy cluster has been discovered, defying expectations and pointing to turbulent cosmic ...

Separated by a distance of around 11 million light-years, these structures are thought to be "shock fronts" resulting from ...

A cloud of energetic gas lit up by a collision of galaxies spans nearly 20 million light-years, leading astronomers to ...

In a dense galaxy cluster, NGC 4858 shows how cosmic winds strip gas, spark new stars, and shape stunning jellyfish-like ...

Since the first collision, the clusters have continued traveling outwards and are currently separated by about 11 million ...