The curvature of spacetime around a black hole is so extreme that outward-going signals cannot escape.

Question

Quizplus · Accepted Answer

This statement is true according to the theory of general relativity. Since the curvature of spacetime is so strong around a black hole, any light or information trying to escape will be sucked back in, making the black hole appear completely black and invisible. This is known as the event horizon, beyond which nothing can escape the gravitational pull of the black hole.

The Curvature of Spacetime Around a Black Hole Is So