Question

What is a black hole?​

Answer 1

black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

Answer 2

Answer:

a black hole is a region of spacetime where gravity is so strong that nothing - no particles or even electromagnetic radiation such as light -- can escape from it.