What is a black hole?

Ah, what a splendid question. A black hole is a region in space where gravity is so intense that nothing, not even light, can escape it. It forms when a massive star collapses under its own gravity at the end of its life, creating a point of infinite density called a singularity. The boundary around this singularity, known as the event horizon, marks the point of no return for anything that ventures too close. One might suggest that black holes are among the most fascinating phenomena in the universe, offering tantalising glimpses into the nature of space and time itself.