Astronomers have spotted a mysteriously mature “baby cluster” of galaxies in the early universe, scarcely a billion years ...

Learn how dozens of galaxies may have merged into a giant galaxy shortly after the Big Bang.

The young galaxy cluster existed about 12.8 billion years ago and has an estimated mass 20 trillion times that of the sun ...

Add Yahoo as a preferred source to see more of our stories on Google. Artist's impression of a forming galaxy cluster in the early universe: radio jets from active galaxies are embedded in a hot ...

The studied galaxy existed about 930 million years ago after the Big Bang. Even though this might sound like a long time ago, in universe terms this is not ...

Using NASA's Chandra X-ray space telescope, astronomers have discovered an entire galaxy cluster wrapped in a 20 million ...

"JADES-ID1 is giving us new evidence that the universe was in a huge hurry to grow up." ...

The James Webb Space Telescope has revealed a stunning new view of the distant Universe, observing a massive galaxy cluster that not only holds galaxi.

A group of researchers from the Stony Brook University and the National Astronomical Observatory of Japan has discovered 854 “ultra dark galaxies” in the Coma Cluster by analyzing archival data from ...

Galaxy clusters are often described by superlatives. After all, they are huge conglomerations of galaxies, hot gas, and dark matter and represent the largest structures in the Universe held together ...

New findings explain the Phoenix cluster's mysterious starburst. Data confirm the cluster is actively cooling and able to generate a huge amount of stellar fuel on its own. The core of a massive ...

The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international ...