Views of a massive galaxy cluster Abell 2256 have been captured by NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and ...

A galaxy cluster once thought to be “dead” is unexpectedly forming stars at an astonishing rate, challenging established ...

The core of a massive cluster of galaxies appears to be pumping out far more stars than it should. Now researchers at MIT and ...

The Phoenix Cluster's central galaxy is about 5.8 billion light-years away and should be mostly done with star formation.

Kokoro Hosogi, a physics student at The University of Alabama in Huntsville (UAH), has achieved a rare honor for an ...

Cracks in the universe refers to cosmic strings, which are hypothetical topological defects theorized to have formed during ...

It is not surprising that there are regions that are more densely populated by galaxies, and regions that are less populated.

The VLT captures a stunning infrared view of Sagittarius C, exposing a rich field of young stars. This breakthrough provides ...

It’s essentially a giant cluster of galaxy clusters stretching approximately 1.3 billion light-years long—more than 13,000 times the length of our Milky Way. It consists of 200 quadrillion ...

Data from the XRISM X-ray satellite provide unprecedented detail on how ionized plasma moves in massive galaxy clusters — a question with huge cosmological and astrophysical implications.

Most massive galaxies have black holes at their cores that emit energetic particles, heating the galaxy’s gas and dust.