Black holes seem to get all the attention. But what about their mirror twins, white holes? Do they exist? And, if so, where are they? To understand the nature of white holes, first we have to examine ...

Most people are familiar with the concept of a black hole: a “hole” or extreme warping in space and time that endlessly devours any matter unfortunate enough to venture close to it. Even light can’t ...

(via Sabine Hossenfelder) White holes are theoretical bodies in physics that are basically time-reversed black holes, meaning instead of permanently trapping matter inside themselves, they release it ...

White holes—are they real, or just a fascinating theory in the realm of astrophysics? 🌌 Unlike black holes, which pull everything in, white holes are theorized to do the opposite: eject matter and ...

Black holes are well known for swallowing everything around them, which is probably why they get talked about so often. On the flip side, white holes are their mysterious opposite. These theoretical ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

WHAT happens if you fall into a black hole? It is one of the most intriguing and complex questions ever conceived. Black holes are places where, at their heart, general relativity breaks down. They ...

Horizons are weird. They delimit what we can see in the distance, but they are also always personal: Walk 10 miles to the west and your horizon line moves 10 miles to the west with you. Remarkably, ...

Ever wondered what would happen if you fell into a black hole? According to Einstein’s Theory of General Relativity, you would be crushed by the powerful gravity of its singularity: the center of a ...