By analyzing the data from ESA's Gaia satellite, Chinese astronomers have investigated the structure of a nearby open cluster ...

Astronomers have discovered a vast, dense cluster of massive galaxies just 1 billion years after the Big Bang, each forming ...

The James Webb Space Telescope captured a colorful portrait of a nearby stellar cradle, revealing a wealth of insights about ...

Scientists have detected a surprisingly hot galaxy cluster dating back to the universe’s infancy. The cluster formed far ...

The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history ...

Astronomers found a young galaxy cluster with unexpectedly hot gas, suggesting cosmic structures formed faster than once believed.

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

Galaxy clusters are formed by a dense packing of many galaxies, making them the most massive structures in the universe.

Astronomers have found something the universe wasn’t supposed to have: a galaxy cluster blazing with hot gas just 1.4 billion years after the Big Bang, far earlier and hotter than theory predicts. The ...

Most astronomers agree that young galaxy clusters should be relatively cool compared to older ones. But researchers recently ...

Gas within the cluster, which existed merely 1.4 billion years after the Big Bang, is at least five times hotter than ...

A group of about 1,000 stars known as the beehive cluster is swarming a sky near you. Here's when and how to see them.