Einstein believed that black holes didn't really exist. But they do: that much we know. We don't know much else about them.

And as far as experts can tell, it looks EXACTLY like what Einstein's general theory of relativity predicted. Here's a simulation of what the Event Horizon Team thought the black hole would look like.

We’ve even caught one on camera in 2019, when we finally took a direct picture of the “event horizon” that ... are cast-iron predictions of general relativity, Einstein’s peerless ...

Einstein’s general theory of relativity can be summed ... And in another situation where the two clash – at the event horizon of a black hole – unresolvable paradoxes emerge.

However, this concept directly contradicts general relativity, which posits that once an object crosses a black hole's event ...

However, this concept directly contradicts general relativity, which posits that once an object crosses a black hole's event horizon, it becomes inaccessible. The postquantum theory offers a ...