The universe is soaked in weak-but-persistent magnetic fields. Despite decades of research, astronomers still aren't exactly ...

European astronomers have investigated a galaxy cluster designated CIZA J2242.8+5301, dubbed the Sausage cluster. The ...

Recently, an international team of astronomers from China's top Tsinghua University, along with collaborators from Italy, ...

Astronomers know of even larger magnetic fields, some of which fill entire galaxy clusters that can reach a few million light-years across. So where do these gigantic magnetic fields come from?

The moment one galaxy spears another with a powerful beam of radiation shooting from its central black hole has been spotted in a distant galactic collision.

“In the universe, an absolute vacuum is rare, and most of the universe is very low-density high-temperature plasma,” said Chris Impey, an astronomer at the University of Arizona. “In principle, sound ...

The galaxy clusters involved in this scuffle are part of a larger system—a “combined” galaxy cluster—called PSZ2 G181. In a ...

At its largest, the model can improve our understanding of the Milky Way Galaxy's overall magnetic field. When scaled down, it will help astronomers better understand more "compact" processes like ...

Some of the largest galaxies we know are elliptical, like the mighty M87 galaxy, which has several trillion stars. M87 sits in the center of the Virgo Cluster—a large group of galaxies bound ...