The infinite weirdness of black holes makes it difficult for a physicist to combine gravity with quantum mechanics (QM).

The fact that gravity works on everything makes it difficult to construct an apparatus to measure the QM properties of gravity. This is because the measuring apparatus c...

When they made their discovery, Calmet and his University of Sussex colleague, physicist and astronomer Folkert Kuipers, were performing calculations using quantum field theory to try and probe the event horizon of a black hole.

Specifically, they were trying to understand the fluctuations...

The ‘curves in space’ theory of gravity is falling out of favour due to the fact that Einstein’s equations seem to work on our solar system but begin to break when we apply the same near a black hole or back in time, during the initial big bang.

String Theory, which conce...