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

WASHINGTON, Jan 30 (Reuters) - Observations by NASA's James Webb Space Telescope and Chandra X-ray Observatory are providing fresh evidence that the universe grew up a lot more quickly than previously ...

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

Hubble catches a spiral galaxy mid-flight, shedding glowing gas as it battles the harsh environment of a nearby galaxy cluster.

When you buy through links on our articles, Future and its syndication partners may earn a commission. The cosmic community of Abell 1489 comes into focus in this image of the galaxy cluster taken by ...

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

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

Scientists discovered that galaxy clusters are about twice as heavy as previously assumed. The additional mass comes mainly from neutron stars and stellar black holes and also explains the observed ...

This result comes as a great surprise and could have profound implications for cosmological models of the very early universe. “We know about several large mass concentrations in the nearby universe,” ...

Roughly 2.8 billion light-years from Earth, two galaxy clusters are engaged in a cosmic tussle. These enormous structures last collided about a billion years ago, but now, it appears they’re going ...

What can heat distribution within galaxy clusters, which often consist of hundreds to thousands of galaxies, teach astronomers about their formation and evolution? This is what a recent study ...

Astronomers have explained how a galaxy cluster maintains its heat, despite emitting X-rays that cool the hot gas at its center. The group discovered the existence of a fast-moving, high-temperature ...