In the world of black holes, there are generally three size categories: stellar-mass black holes (about five to 50 times the ...

The brutal star-destroying tidal disruption event is only the second ever seen in interacting galaxies.

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

The mystery object, known as ASKAP J1832- 0911, is located within the Milky Way about 15,000 light-years away from Earth.

Astronomers have discovered a strange new object in our Milky Way galaxy. The celestial object is emitting X-rays around the ...

Researchers traced long, bright radio pulses, combined with X-rays, to an intriguing cosmic object 15,000 light-years from ...

Astronomers have discovered a mysterious new object in our Milky Way, which is emitting X-rays and radio waves at the same ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system ...

The mystery object, located just a short 15,000 light-years from Earth in our Milky Way galaxy, was spotted emitting unusual ...

A series of studies have cast doubt on the sensational claim that "the strongest evidence yet" was found that life exists ...