Primordial black holes (PBHs) don't exist as far as we know. But if they did, these hypothetical objects would have formed in the early universe rather than from dying stars, and they may even make up ...

Astronomers have found two actively feeding supermassive black holes separated by just 175 parsecs (570 light-years) in a galaxy seen when the universe was only about 2 billion years old. The system, ...

At the heart of most large galaxies sits a supermassive black hole. They’re the most massive objects in the universe, ...

Could Our Universe Exist Inside a Black Hole? Nuclear Engineer Reacts to Kurzgesagt. Could the universe we live in actually ...

Astronomers have uncovered compelling evidence of two supermassive black holes spiraling toward a potentially spectacular ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have discovered that the universe's most massive black holes may form in the densest of stellar environments, or ...

Some black holes roaming the Universe today may actually be older than the Big Bang. A new cosmic “bounce” model suggests the Universe expanded from an earlier contracting phase, allowing ancient ...

Physics has a massive 'great quarrel' that has remained unsolved for nearly 50 years. That is the 'Black Hole Information ...

A bizarre neutrino that crashed into Earth in February 2023 is gaining no shortage of equally bizarre explanations.

New research suggests that relic black holes from before the big bang may still shape galaxies today. These black holes could explain dark matter, one of the biggest unsolved questions in cosmology.

This article predates the current owners of Science Blog. It has not been reviewed under the current editorial process and is kept as part of the archive. A stellar graveyard plot showing all the ...

Why do clocks run at different speeds on the ground and in space? Why do distant galaxies sometimes appear as beautiful rings ...