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 ...

image: The Universe loves to fool our eyes, giving the impression that celestial objects are located at the same distance from Earth. A good example can be seen in this spectacular image produced by ...

The Chandra image of the Centaurus galaxy cluster shows a long plume-like feature resembling a twisted sheet. The plume is some 70,000 light years in length and has a temperature of about 10 million ...

Astronomers are rubbing their eyes after discovering that a galaxy assumed to have been a giant for the past 23 years is in fact a dwarf, according to new observations. NGC 5011C, a galaxy in the ...

A survey completed using a combination of ground and space-based telescopes yielded a treasure trove of previously unknown globular clusters – old, dense groups of thousands of stars that all formed ...

The Centaurus Cluster is a collection of hundreds of galaxies located about 145 million light years from Earth. At the center of the cluster is a large elliptical galaxy called NGC 4696. Buried within ...

The XRISM science team, including members of Nagoya University, has explained how galaxy clusters maintain their heat despite emitting X-rays, which typically have a cooling effect on the hot gas. By ...