Black Holes

Black holes are regions in space where the gravitational pull is so strong that nothing, not even light, can escape from them. They form when massive stars exhaust their nuclear fuel and collapse under their own gravity at the end of their life cycles. The boundary surrounding a black hole is called the event horizon, which marks the point beyond which no information or matter can return. Black holes can vary in size, with categories including stellar black holes, which are a few times the mass of the Sun, and supermassive black holes, which can contain millions to billions of solar masses and are typically found at the centers of galaxies. The study of black holes is crucial for understanding fundamental aspects of physics, particularly in the realms of general relativity and quantum mechanics.