Take a tour of the Hydra I galaxy cluster. A galaxy in the region, NGC 3312, is "losing cold gas as it moves through the hot ...

For astronomers studying dark matter, the Bullet Cluster is one of the greatest laboratories in the universe. Follow-up ...

NASA has recently transformed sound waves emanating from the Perseus Galaxy Cluster’s black hole into a format perceptible to ...

NASA has been studying the galaxies in the Coma Cluster after discovering a galaxy with the same shape of a UFO. Dark matter is once again being considered.

Ph.D. candidate Anthony Englert GS observed a light bridge between two galaxies in local galaxy cluster Abell 3667.

New simulations suggest globular clusters form in multiple ways and point to a mysterious new type of star system that may ...

A swarm of galaxies called the Bullet Cluster is the biggest, best natural laboratory for studying dark matter that astronomers have ever seen ...

Using the MeerKAT radio telescope, an international team of astronomers has performed observations of a galaxy cluster ...

Astronomers have discovered a previously hidden "cosmic fuel tank" in an infant cluster of forming galaxies. This vast reservoir of cool molecular gas is found in the protocluster known as SPT2349-56, ...

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 ...

Hubble’s latest image captures a glittering star cluster inside the Large Magellanic Cloud, a dwarf galaxy about 160,000 ...

The Perseus cluster is a vast swirl of thousands of galaxies, all bound together by gravity. Famed for its unbelievable size — containing the mass of some 600 trillion suns — it also has a reputation ...