Astronomers have discovered an extremely rare group of five 'dwarf' galaxies that are 'interacting with each other' about 117 million light years away from Earth Dwarf galaxies contain a few ...

Researchers identified 378 satellite galaxies around their host systems, an accomplishment requiring meticulous analytical techniques to differentiate these objects from a dense background noise. The ...

NGC 7320 is not a member of the group that contains the other four galaxies. (University of Hertfordshire) "Since its discovery in 1877, Stephan's Quintet has captivated astronomers, because it ...

Another way to think about the universe's expansion is by thinking about how other galaxies are moving away from our galaxy, the Milky Way. Scientists know the universe is expanding because they ...

In a similar way, astrophysicists like us who study supermassive black holes expect to find binary systems—two supermassive black holes orbiting each other—at the hearts of some galaxies.

A spiral galaxy with a disk that spans more than 100,000 light-years, it sits within a neighborhood called the Local Group, which includes more than 50 other galaxies. Some of the neighborhood's ...

"Our findings take us closer to solving a long-standing mystery in astronomy that will redefine our understanding of how galaxies were created in the early universe." Astronomers have discovered ...

In a corner of space 290 million light-years from Earth, we're getting to see something truly epic in action. There, four galaxies are closely interacting, the region filled with the detritus of past ...