A new study has found that a hidden bias in galaxy models can skew gravitational-wave measurements of how fast the universe is expanding. That finding complicates one of astronomy’s most promising ...

Study reveals that the Euclid telescope may be underestimating the number of barred galaxies due to limitations in its images ...

Galaxies are clouds of stars that range in both size and composition. Some contain hundreds of millions of stars while the largest galaxies can contain trillions of stars. And while it’s not entirely ...

The universe may be a little darker after a recent discovery has shown that there could be fewer galaxies populating it. A previous measurement by Hubble Space Telescope suggested there were 2 ...

T he first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University ...

Using the James Webb Space Telescope (JWST), scientists found that many galaxies started as thick discs before forming the thin discs we see now. This discovery helps answer a long-standing mystery ...

Galaxy clusters are formed by a dense packing of many galaxies, making them the most massive structures in the universe. Their progenitors, protoclusters, show these galaxies in their infancy, ...