White holes are the hypothetical opposite of black holes. While black holes suck in everything, including light, white holes are theorized to do the exact opposite—nothing can enter, and they ...

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 ...

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 ...

The black hole was bigger than expected, and while the answer was hiding in plain sight, it still rewrites what we thought ...