Astronomers have spotted an apparent supermassive black hole snacking on a star 600 million light-years away, wandering ...

A blob of gas seen outside the Milky Way could be a type of starless, dark matter–dominated galaxy. Some scientists are skeptical.

Astronomers have stumbled upon yet another ghostly galaxy that appears to be devoid of dark matter. Dark matter, the invisible substance astronomers believe dominates the universe, provides the ...

Astronomers have identified a new ultra-diffuse galaxy that appears to defy one of the fundamental assumptions of modern cosmology: the presence of dark matter. The galaxy, dubbed FCC 224 ...