A family portrait of the Andromeda galaxy and its orbiting dwarf satellites raises questions about how galaxies evolve.

When you buy through links on our articles, Future and its syndication partners may earn a commission. (Main) an illustration of a galaxy with a rogue feeding black hole heading to its oukskirts ...

A tight clump of four star clusters sits in the Perseus galaxy cluster, and at first glance it looks like nothing special. No bright spiral arms.

The Hubble and Chandra space telescopes are hunting for rogue black holes wandering through dwarf galaxies, which could provide a fossil record of how supermassive black hole growth in the early ...

A new study suggests that dark matter may consist of particles with different masses. By introducing a two-component self-interacting dark matter model, the researchers show that both the low-density ...

The James Webb Space Telescope has snapped a remarkably detailed image of a nearby dwarf galaxy. The near-infrared view reveals the deepest glimpse yet into a stellar panorama that could offer ...

Traditionally, black holes are usually thought to "reside" at the centers of galaxies. However, a research team led by Dr. An Tao from the Shanghai Astronomical Observatory of the Chinese Academy of ...

Astronomers know that mergers play a huge role in galaxy growth. Right now, the Milky Way is slowly consuming the Large and Small Magellanic Clouds. The evidence is a stream of gas called the ...