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Black holes are regions in space with an incredibly strong gravitational pull, where nothing, not even light, can escape. They originate from Albert Einstein's theory of general relativity and come in different sizes, with their mass determining their strength and influence. Stellar black holes form when massive stars collapse, while supermassive black holes are found at the centers of most galaxies, including our own. Despite their light-trapping nature, scientists have been able to infer their presence through their gravitational effects on surrounding matter and light. Recently, the first direct image of a supermassive black hole was captured by the Event Horizon Telescope, continuing to challenge our understanding of the universe.