Hubble catches a spiral galaxy mid-flight, shedding glowing gas as it battles the harsh environment of a nearby galaxy cluster.

Astronomers have uncovered evidence that the Milky Way is not drifting through space alone but is embedded in a vast, flat structure of dark matter stretching tens of millions of light-years. The ...

(CN) — A nearby galaxy may be falling apart, and its larger neighbor could be the reason why. Astronomers studying the Small Magellanic Cloud — a dwarf galaxy about 200,000 light-years from Earth — ...

Astronomers have spotted two massive galaxies locked in a cosmic tug-of-war 700 million light-years from Earth — and for the first time in such a nearby galaxy, watched as a faint stream of stars is ...

Scientists discovered that galaxy clusters are about twice as heavy as previously assumed. The additional mass comes mainly from neutron stars and stellar black holes and also explains the observed ...

XRISM measurements map gas velocities in the Perseus and Virgo clusters, separating black hole-driven turbulence from merger-driven motion using high-resolution X-ray spectroscopy.

Astronomers have unveiled a new catalog of massive galaxy clusters, revealing insight on the evolution of the universe. Galaxy clusters — the largest gravitationally bound structures in the universe — ...

A recent study published in The Astrophysical Journal Letters has provided the most precise distance to the Coma Cluster of galaxies yet — and also has deepened a crisis in cosmology. The problem is ...

Under the leadership of the University of Bonn, a research team led by Prof. Dr. Pavel Kroupa from the Helmholtz Institute for Radiation and Nuclear Physics has discovered that galaxy clusters are ...