The Chandra X-ray Observatory view of galaxy group NGC 4839 has revealed that it is "plunging into the Coma galaxy cluster ...

Scientists have found evidence for a cosmic collision in the Perseus cluster, a group of thousands of galaxies not far from ...

The Perseus cluster is a vast collection of thousands of galaxies, all bound together by gravity. Famed for its unbelievable ...

Astronomers from Swinburne University in Australia and elsewhere have employed the Keck II telescope to investigate the ...

These May nights provide the skywatcher impressive views of galactic clusters unimpeded by the Milky Way, the chance to study exoplanets and the opportunity to refresh one’s perspectives.

Using the Subaru Telescope at Maunakea, Hawaii, the team discovered a “Dark Matter bridge” connecting Perseus to a subcluster ...

As part of ESA/Hubble's 35th anniversary celebrations, the European Space Agency (ESA) shared new images that revisited ...

Famed for its unbelievable size — containing the mass of some 600 trillion suns — it also has a reputation for being one of the few "relaxed" galaxy clusters out there: it shows no signs of ...

James Webb Space Telescope has delivered stunning views of the "gravitationally distorted realms" of the El Gordo galaxy ...

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 ...

"All the odd shapes and swirling gas observed in the Perseus cluster now make sense within the context of a major merger." Astronomers have discovered a long-missing element of a galactic ...