Three black holes in one area sounds terrifying.

The Event Horizon Telescope captured the first image of the Milky Way galaxy's supermassive black hole Sagittarius A* — our ...

Dusty stars close to the Milky Way’s black hole stay stable for years. New infrared data shows they survive gravity and ...

ASTRONOMERS have identified 53 previously unknown quasars powered by supermassive black holes whose jets hurl matter at ...

Using NASA's Swift and Fermi space telescopes, Indian astronomers have conducted a long-term multiwavelength study of a ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

Guest columnist Walter Suza reflects on what needs to be done to make the United States a more perfect union.

A spectacular new view of two dwarf galaxies caught in the middle of a cosmic collision reveals a glowing gas bridge, streams of newborn stars and the ongoing gravitational tug-of-war reshaping both ...

The discovery potentially transforms what we think about how the cosmic environment influences galaxies as they form.

A massive new sunspot complex, dubbed AR 4294-4296, has emerged on the sun and is facing directly at Earth. The dark patch is ...