The largest sample of galaxy groups ever detected has been presented by a team of international astronomers using data from the James Webb Space Telescope (JWST) in an area of the sky called COSMOS ...

Initially, the astronomer who first made note of this fuzzy-looking glowing cluster thought it might be a nebula. But it’s ...

By mapping the brightest explosions in the universe, scientists may have uncovered a megastructure that defies our understanding of how the cosmos is built.

These May nights provide the skywatcher impressive views of galactic clusters unimpeded by the Milky Way, the chance to study ...

A re-examination of the distribution of powerful space explosions suggests that the Hercules-Corona Borealis Great Wall, a ...

A mysterious cluster of 60 stars may be just another Milky Way star cluster, or it may be one of the smallest galaxies ever ...

The XRISM science team, including members from Nagoya University in Japan, has explained how a galaxy cluster maintains its heat, despite emitting X-rays that cool the hot gas at its center. The group ...

Some of the largest galaxies we know are elliptical, like the mighty M87 galaxy, which has several trillion stars. M87 sits in the center of the Virgo Cluster—a large group of galaxies bound ...

Galaxy clusters are some of the largest structures in the known universe, consisting of thousands of galaxies bound together by gravity. Scientists have long believed that these clusters grow ...

The galaxy’s star clusters exhibit narro ... have found that the Hercules–Corona Borealis Great Wall—the largest known structure in the universe—is even larger and closer than previously ...