The study provides fresh insights into the formation of massive clusters in the early universe.

Astronomers have discovered a galaxy cluster burning five times hotter than theoretical models predicted, just 1.4 billion years after the Big Bang. The finding challenges fundamental assumptions ...

A spectacular spiral galaxy known as M88 is traveling toward the crowded heart of the Virgo Cluster, where powerful forces ...

A developing galaxy cluster dating to about 1 billion years after the Big Bang is shown in this handout image released on January 28, 2026. The white box marks the field of view of the Chandra X-ray ...

The galaxy cluster Abell 2029 is sometimes described as "the most relaxed cluster in the universe." This moniker does not arise from some sort of mellow vibe, but rather because of how calm and ...

In the vast tapestry of the universe, most galaxies shine brightly across cosmic time and space. Yet a rare class of galaxies remains nearly invisible—low-surface-brightness galaxies dominated by dark ...

Current theories say young galaxy clusters should be relatively cool compared to older ones. But researchers recently found a very young cluster that was shockingly hot. Study author Dazhi Zhou says ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For decades, astronomers have described the galaxy cluster Abell 2029, a vast city of galaxies in ...