Once mistaken for a fuzzy star cluster, the stunning Squid Galaxy—formally known as Messier 77—has transformed in the eyes of ...

"SPT2349-56 is a system so extraordinary that we may have caught one of the most massive clusters under formation at a very ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. Astronomers observing a mysterious radio halo from the galaxy cluster Abell 1213 have ...

PLCKG287, also known as PSZ2 G286.98+32.90, is a galaxy cluster at a redshift of 0.38, with a mass of about 1.37 quadrillion solar masses and a temperature of 13 keV. The cluster has an X-ray ...

This protocluster, located approximately 12 billion light-years away, is a region of the early universe where a cluster of galaxies is just beginning to form. Galaxy clusters are the largest ...

This week’s small-telescope target is globular cluster NGC 2808 in the southern ... This week’s first large-scope object is elliptical galaxy NGC 2986, which lies in the sky’s largest ...