The most incomprehensible thing about the universe is that it is comprehensible,” Albert Einstein once pondered. But even as ...

"Theories involving substantial formation of stars prior to or together with the black hole formation and growth are very ...

A new study has been accepted by the Journal of Cosmology and Astroparticle Physics that proposes two new models of black ...

These are rare occurrences—scientists estimate that the giant black hole at the center of our Milky Way galaxy gobbles a star ...

The average density of a black hole, or anything else, is the mass divided by the volume. The mass of the black hole just doubled, but the volume is now eightfold what it was before.

Black hole singularities defy the laws of physics. New research presents a bold solution to this puzzle: Black holes may actually be a theoretical type of star called a 'gravastar,' filled with ...

A radical hypothesis suggesting black holes could be behind the accelerating expansion of our universe has been stirring up controversy among astronomers. A new study may contain the first ...

At a black hole’s center, matter shrinks to infinite density and the known laws of physics break down. But to physicists bent on explicating those fundamental laws, black holes are a Coney ...

Black hole mergers are beautiful — and some of the most violent events in the cosmos. ... The center of a black hole is known as a singularity, a point of infinite density.

All matter in a black hole is concentrated into a central point of infinite density and infinitesimally small size — a singularity. Skip to content Introducing the all-new Astronomy.com Forum!

Also, she said, primordial black holes would have had the ability to grow into supermassive black holes by feasting on gas and stars in their vicinity, or by merging with other black holes.

There’s actually more than one definition for a black hole’s size, and they all have their uses. From the outside in, let’s take a look at what a black hole’s size can tell us.