A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it. This phenomenon occurs when a massive star collapses under its own gravity at the end of its life cycle. Black holes are characterized by three main properties: 1. **Singularity**: At the center of a black hole lies the singularity, a point where gravity is thought to be infinitely strong, and known laws of physics break down.

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Black hole by Ciro Santilli 37 Updated +Created