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A region of spacetime where gravity is so strong that nothing, not even light, can escape.

The boundary around a black hole beyond which nothing can escape — the point of no return.

The infinitely dense point at the center of a black hole where known physics breaks down.

Theoretical radiation emitted by black holes due to quantum effects near the event horizon.

Black holes are classified by mass: stellar, intermediate, supermassive, and primordial.

Time passes more slowly near a black hole due to the extreme warping of spacetime.

The stretching of objects into long, thin shapes by extreme tidal forces near a black hole.

Black holes are invisible but reveal themselves through their effects on surrounding matter and spacetime.