For example, astronomers have observed unusual motions of stars and unexplained mass distributions within it, which could be the result of the gravitational pull of a central black hole. In other ...

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

This black hole is estimated to weigh around 600,000 solar masses, significantly smaller than the supermassive black hole at the center of the Milky Way, Sagittarius A*, which weighs about 4.3 ...

An illustration comparing the Milky Way with 2MASX J23453268−0449256. Bagchi and Ray et al. / Hubble Space Telescope. The extreme black hole is not the only unusual feature of 2MASX J23453268− ...

The colossal black hole lurking at the center of the Milky Way galaxy is spinning almost as fast as its maximum rotation rate.

NEW YORK — Scientists have spotted what appear to be two stars whipping around each other near the supermassive black hole at the center of our Milky Way galaxy. Nearly every large galaxy has a ...

The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On ...

“For example, Chandra’s X-rays reveal the high-energy radiation around the supermassive black hole at the center of M31 as ...

Astronomers at the University of Hawaii uncovered black hole events so packed with energy, they were the biggest explosions ...