A black hole is a region in space where gravity is so strong that nothing, not even light, can escape its gravitational pull. The boundary surrounding a black hole is called the event horizon, and once an object crosses this boundary, it is trapped within the black hole. Stars can become black holes through a process known as stellar collapse. This occurs when a massive star exhausts its nuclear fuel and is no longer able to counteract the force of gravity trying to collapse it. The fate of a star depends on its mass: 1) Low to Medium Mass Stars: For stars with masses similar to our Sun, the gravitational collapse is typically counteracted by nuclear fusion reactions in the star's core, where hydrogen is converted into helium. As these stars run out of nuclear fuel, they expand into red giants and then shed their outer layers, forming a planetary nebula. The remaining core, called a white dwarf, is stable and does not collapse further under normal circumstances. 2) High Mass Stars:...
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