Small and unassuming, Segue 1 is a nearby dwarf galaxy containing only a handful of stars—too few to provide the gravity ...

An unexpected monster black hole was found hiding inside one of the Milky Way's tiniest neighbors, rewriting what scientists ...

By Leah CraneA nearby galaxy once thought to be dominated by dark matter seems to have a surprise supermassive black hole at ...

The nearby dwarf galaxy Segue 1 is exceptionally faint for its mass, which has puzzled astronomers almost since its discovery. A new paper proposes this could be because it hosts a ridiculously ...

Researchers have believed that Segue 1, a puny galaxy orbiting the Milky Way just 75,000 light-years away, was packed with dark matter, a substance in space that doesn't shine or interact with light.

Astronomers searching for massive black holes shredding stars found one in an unusual place -- 2,600 light years from the core of a galaxy. The roque black hole may be from an earlier merger with ...

Physicists have analyzed two enormous black hole mergers that happened one month apart and have come up with tantalizing ...