Three kinds of black holes The IFPU team discusses one old and two new black hole models. The first is the standard black hole that comes with an event horizon and a singularity.

Ever since general relativity pointed to the existence of black holes, the scientific community has been wary of one peculiar feature: the singularity at the center — a point, hidden behind ...

At cosmological scales, Albert Einstein’s theory of general relativity has given scientists an immensely accurate blueprint ...

Currently, common thought is that the unknowable singularity at the center of a black hole probably devolves into three marginally more knowable ones as the black hole ages.

A researcher throws cold water on a recent effort that purported to eliminate black holes' greatest and most enduring mystery — the existence of their central singularity.

“Hypothetically you could have an observer—a hypothetical entity—go through the black hole, through what we think of as a singularity and emerge on the other side of the white hole.

Both of these approaches can replace the traditional singularity in the center of a black hole with something else. But when you replace the singularity, you usually also eliminate the event horizon.

What lurks at the center of a black hole? Studying the space-time ripples from black hole collisions could reveal an answer.

New research suggests black holes may transition into 'white holes', ejecting matter and potentially even time back into the universe, defying our current understanding of these cosmic giants.

Over the last century, three questions have confounded the field of theoretical physics. What is the nature of the black hole singularity? What happens at the end of the evaporation process of a black ...

The widely quoted statement that black holes have a singularity is based on the misapplication of the causal Einstein equations of motion to acausal black holes, producing a fake singularity, see ...