The galaxies identified date back to when the universe was roughly 800 million years old, an epoch astronomers call redshift 7.

The game-changing Vera C. Rubin Observatory will collect more astronomical data in its first year than all other telescopes ...

The James Webb Space Telescope has spotted extreme galaxy clusters generating enough ultraviolet light to account for cosmic ...

Astronomers have discovered a "jellyfish" galaxy whose unusual shape and internal mechanisms—including distinctive "bunny ...

Combining the way that massive galaxies and galaxy clusters bend space and magnify our view of the distant universe with ...

The James Webb Telescope reveals a never-before-seen infrared image: thousands of galaxies and ancient stars expose cosmic evolution.

Surveying nearby galaxies in the process of merging with other galaxies, astronomers have identified massive, dense star ...