It was a bump in the night. A big one.On Nov. 23, 2023, waves from a colossal merger of two black holes reached Earth and ...

Gravitational-wave detectors have captured their biggest spectacle yet: two gargantuan, rapidly spinning black holes likely ...

Astronomers have been aware of cosmic vampires, dead stars that hungrily strip plasma from victim stars, for some time. New ...

New gravitational wave findings from the LIGO-Virgo-KAGRA Collaboration report the discovery of the largest black hole merger ...

Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.

The event is the most massive black hole merger ever recorded by gravitational wave detectors and has forced physicists to ...

The Hubble Space Telescope has found evidence of a "wandering" black hole about 5000 light years away in the Milky Way galaxy ...

In summer, we face toward the Milky Way's hub in the Teapot constellation, home to the galaxy's supermassive black hole.

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

Astronomers have studied the globular cluster 47 Tucanae extensively, but still have many questions. It may have an ...

Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...

(Left) the relatively quiet black hole at the heart of the Milky Way (Right) the violent and turbulent supermassive black ...