A black hole is a region in space where the gravitational pull is so intense that nothing, not even light, can escape its grasp.
This phenomenon occurs when a massive star collapses under its own gravity, forming a singularity, an infinitely dense point at the center of the black hole.
Surrounding the singularity is the event horizon, a boundary beyond which nothing can return.
Black holes can vary in size and are detected indirectly by their effects on nearby matter and light. They remain one of the most intriguing and mysterious objects in the universe.