When a massive star burns through its nuclear fuel, it eventually runs out of energy to counteract the force of gravity pulling it inward. The core of the star collapses under its own weight, leading to a violent explosion known as a supernova. During a supernova explosion, the outer layers of the star are blown off into space while the core undergoes a rapid collapse, with the force of gravity compressing it down to an incredibly small size. If the core's mass is several times greater than that of the Sun, it will collapse into a singularity, a point of infinite density with a gravitational pull so strong that nothing, not even light, can escape its grasp. This phenomenon creates a black hole, an area of spacetime where gravity is so intense that it distorts the fabric of the universe itself. Black holes are invisible to the naked eye, but their presence can be inferred by the way they interact with their surroundings. Studying black holes can provide valuable insight into the nature of the universe and the fundamental laws of physics.