For decades, astronomers have cast galaxy mergers as the universe's ultimate relationship drama: two galaxies collide, chaos ...

Astronomers have discovered the secrets of early galaxies that pumped the infant cosmos full of dust, but by studying a much ...

Astronomers have captured a new image of two spiral galaxies locked in the early stages of a collision and merger. The Gemini ...

Astronomers found the most distant nuclear disc ever seen, showing galaxies became organized far earlier in the Universe than ...

A black hole may be stirring a "pot" of gas containing a neighboring galaxy in the early universe, according to a new study ...

Faint, distant galaxies spotted by the James Webb Space Telescope are beginning to reshape how scientists understand the high ...

The finding pushes one of the cornerstones of galaxy evolution much further back in cosmic history than previously known, ...

Stars and galaxies make up much of the universe’s ordinary, observable matter. But for decades, scientists have wrestled with ...

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite galaxies—up to 100 more than we currently know. These elusive "orphan" galaxies have ...

The James Webb Space Telescope captured this image of a young galaxy cluster, MACS J0553.4-3342.

The Bullet Cluster is considered important evidence for the existence of dark matter. Now a research team believes it can explain its peculiarity differently.

An international team of astronomers has identified three ultra-massive galaxies—each nearly as massive as the Milky Way—already in place within the first billion years after the Big Bang. The ...