Most black holes form when a very massive stars collapses due to its own gravity. This happens when it burns all its fuel and thus has no more energy to stop the force of gravity from collapsing on itself.
gravity is cause by mass… so the more mass, the more gravity… and when there’s enough mass, the gravity is so great that even light can’t escape… and that’s why they’re black
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Mimuna04 commented on :
Thanks for your time answering my question.