Black hole is impossible to exist according to proven science.

From Wiki

A black hole is a region of spacetime exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it.^[6] The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.^[

The first mistake is spacetime is not matter, it has no mass, therefore spacetime cannot exhibiting gravitational acceleration.

The second mistake is light only coexisting with the medium/matter, there is no light traveling in vacuum space. The present science of light is wrong.

The third mistake is relativity itself is based on the impossible assumption that we travel at light speed to observe and predict reality. It is incorrect at all.