It is located about 25 million light-years from Earth in the constellation Ursa Major.

The first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São Paulo. A team had found a small, strange galaxy that appeared to ...

The research could shed light on how black holes vomit out matter and how this influences their home galaxies.

Like tiny photobombers, cosmic anomalies resembling small, bright red points show up in almost every snapshot taken by the most powerful space telescope ever made. Astronomers now call them little red ...

Even 200 years after asteroid 16 Psyche was discovered, astronomers continue to puzzle over its formation. Psyche is the 10th ...

A neutron star and black hole (GW200105) were detected merging along an unusual oval orbit, challenging theories about how ...