Black holes are among the most mysterious and awe-inspiring phenomena in the universe. They form when massive stars collapse under their own gravity at the end of their life cycle, creating a region with gravity so strong that nothing, not even light, can escape. This invisible yet powerful object challenges our understanding of space and time. For decades, black holes were purely theoretical. Scientists could only predict their existence using Einstein’s theory of general relativity. Today, astronomers detect black holes by observing the effects they have on surrounding stars and gas. As matter falls toward a black hole, it emits high-energy radiation, allowing us to indirectly study these cosmic giants. In 2019, the Event Horizon Telescope captured the first-ever image of a black hole, a milestone that confirmed decades of theoretical predictions. Beyond curiosity, black holes may hold answers to fundamental questions about the universe, including the nature of gravity, time, and even the possibility of other dimensions.