A black hole is a place in space where gravity is incredibly strong. It's formed when a massive star collapses, becoming very dense and compact. Nothing, not even light, can escape from a black hole because its gravity is so powerful. Black holes have a boundary called the event horizon, which acts like a point of no return. Inside the black hole is a singularity, a spot of infinite density. There are different sizes of black holes, from small ones that come from dying stars to supermassive ones found at the centers of galaxies. Black holes pull things toward them with their strong gravity, but they don't "suck" like a vacuum. Scientists study black holes to learn about space, time, and gravity, using various methods like observing their effects on nearby objects or detecting their gravitational waves.
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