The Milky Way is just a speck in a universe filled with an untold number of galaxies. But if we had to take an educated guess ...

Astronomers are closer than ever to working out how the biggest galaxies in the cosmos grew so quickly before dying.

Related: How many galaxies are in the universe? Confirming if a nearby dwarf galaxy is a Milky Way satellite involves spectroscopy — analysis of the light it emits — to determine its motion and ...

A group of international astronomers have discovered three mysterious, ultra-massive galaxies in the early universe. The ...

A group of international scientists discovered three ultra-massive “Red Monster” galaxies capable of forming their own stars ...

Edwin Hubble's revelation in 1924 that the Andromeda Nebula was, in fact, an 'island universe,' was a pivotal moment in our ...

In the early Universe, long before they should have had time to grow, astronomers have found what they're calling 'red ...

The James Webb Space Telescope may have broken another of its own records, finding potentially five of the earliest and most distant galaxies ever seen.

The Epoch of Reionization — the universe’s last major transition — may have happened earlier than previously thought.