(via Kurzgesagt) Gravastars could change how we think about the universe. These cosmic objects solve black holes’ biggest problems without breaking physics. From their ultra-thin shell to their energy ...

Black holes are some of the most fascinating objects in the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Black holes are some of the ...

Astronomers have discovered two early-universe galaxies where the central black holes appear to have grown far faster than ...

Some things in cosmology may simply be unknowable. Why is there something rather than nothing? What lies outside the universe? What is inside a black hole? That last one has been niggling at ...

Astronomers searching for massive black holes shredding stars found one in an unusual place -- 2,600 light years from the core of a galaxy. The roque black hole may be from an earlier merger with ...

Whenever someone talks about black holes, they almost always talk about the event horizon and the singularity. After all, that's what defines a black hole, right? Well, it depends on what you mean by ...

Black hole mergers are beautiful — and some of the most violent events in the cosmos. Here's how the process unfolds. The story begins with two black holes orbiting far from each other in long, lazy ...

Every galaxy has a supermassive black hole at its center, much like every egg has a yolk. But sometimes, hens lay eggs with two yolks. In a similar way, astrophysicists like us who study supermassive ...

An undiscovered population of ancient black holes may be lurking throughout the universe. These bottomless cosmic pits would have a lot in common with more familiar black holes; in some cases, the two ...