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

The dark nebula is part of the Circinus West molecular cloud, which stretches for 180 light-years, containing a mass 250,000 ...

Astronomers have, for the first time, directly observed star clusters merging at the cores of dwarf galaxies—a process long ...

Scientists say it's the earliest galaxy seen doing this (so far). Astronomers have caught an immensely ancient galaxy ...