Black Hole Horizon

A black hole horizon, often called the event horizon, is the boundary around a black hole beyond which nothing can escape—including light. Think of it as a point of no return; once something crosses this boundary, gravity is so intense that escape becomes impossible. The horizon marks the edge where the black hole's gravitational pull becomes overwhelming, effectively concealing what’s inside from outside observation. It’s not a physical surface but a mathematical boundary, where space and time are warped to such an extent that our current understanding of physics reaches its limits.