But what exactly are white holes, and why have we never detected one? The idea of white holes challenges everything we know about gravity and the nature of space-time.

The James Webb Space Telescope has found perhaps its most profound discovery to date. The uncovered preferred direction for galaxies supports the idea that the universe was born in a black hole.

Space & Spaceflight Black Holes Could Be Tunnels to White Holes, New Theory Suggests Black hole singularities might be the beginning rather than an end, new research suggests.

Instead, space and time transition into a new phase called a white hole -- a theoretical region of space thought to function in the opposite way to a black hole.

Instead, space and time transition into a new phase called a white hole—a theoretical region of space thought to function in the opposite way to a black hole.

A black hole infamous for strange features has once again baffled astronomers, this time with rapid X-ray flashes. What could they be?

NASA's Hubble Space Telescope captures photos of 'Space Jaws' This is a Hubble Space Telescope image of a galaxy located 600 million light-years away that is host to a roaming supermassive black hole.

"This black hole could then grow and consume the entire planet, turning it into a black hole with the same mass as the ...

Some scientists think black holes are back doors to other universes. If true, this theory could explain how all of the matter in our universe was created.

Supermassive black holes are seen as sources of wanton cosmic destruction, but there may be more to their powerful influence than first meets the eye.