A black hole is a gravitational region where even light cannot escape, formed by the collapse of a star. The extreme gravity of a black hole is due to its high density and small size.
A black hole is a region of space where gravity is so strong that even light cannot escape from it. It is formed when a star collapses under its own weight, becoming extremely dense. The size of a black hole is very small compared to its mass, making it have a strong gravitational pull.
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