When studying local galaxy cluster Abell 3667, Anthony Englert GS, a Ph.D. candidate in physics, noticed something unique. Connecting the brightest galaxies in two small clusters within Abell 3667 was ...

Astrophysicists from the University of Waterloo have observed a new jellyfish galaxy, the most distant one of its kind ever captured. Jellyfish galaxies are named for the long, tentacle-like streams ...

Astronomers have uncovered evidence that the Milky Way is not drifting through space alone but is embedded in a vast, flat structure of dark matter stretching tens of millions of light-years. The ...

An international team of astronomers led by the University of Vienna has deciphered the formation history of young star clusters, some of which we can see with the naked eye at night. The team, led by ...

Qiong Li's research on JADES-ID1 offers new perspectives on the formation of galaxy clusters, challenging traditional views ...

A puzzling radio emission from a galactic cluster located in the constellation may come from the 1.66 million light-year-long radio tail of its dominating central galaxy. This was initially believed ...

Day 3 of the 2025 Space Telescope Advent Calendar: A Galactic Cluster. More than 100 galaxies can be seen in Galaxy Cluster Abell 209, situated about 2.8 billion light-years away. Though they look ...

The galaxies highlighted in this James Webb Space Telescope image have been confirmed to be at a distance that astronomers refer to as redshift 7.9, which correlates to 650 million years after the Big ...

Galaxy clusters are the heaviest structures in the universe, yet most of their mass is invisible, inferred only from the way it tugs on light and galaxies. Now a new class of “dead” stars, white ...

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