Black holes are regions in space where gravity is extremely strong, with nothing (not even light) able to escape. The concept of black holes originated from Albert Einstein's theory of general relativity, which describes how massive objects warp space and time. A black hole has an incredibly strong gravitational pull that creates a point of infinite density called the singularity, surrounded by the event horizon, beyond which anything falls in and is forever lost to us. Black holes come in different sizes, with their mass determining their strength and impact. They can form when massive stars collapse under their own gravity after exhausting their nuclear fuel, or exist at the centers of galaxy clusters. Although we cannot directly observe black holes due to their gravitational capture effect, scientists have inferred their existence through the effects on surrounding matter and light. Black holes continue to be a fascinating area of research and observation, providing insights into the nature of space, time, and physical laws.