Scientists have detected a surprisingly hot galaxy cluster dating back to the universe’s infancy. The cluster formed far earlier and burned far hotter than current models predict. Researchers believe ...

Galaxy clusters are among the largest structures in our universe, consisting of hundreds or thousands of galaxies that have become gravitationally bound together over billions of years.

Astronomers have successfully charted a colossal cluster of galaxies, extending billions of light years. This unprecedented exploration into cosmic structures could provide new insights into the ...

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about how these cities of galaxies form. When you purchase through links on our ...

Artist’s impression of a forming galaxy cluster in the early Universe: radio jets from active galaxies are embedded in a hot intracluster atmosphere (red), illustrating a large thermal reservoir of ...