In the fourth episode of Amazing Universe, we delve into the enigmatic world of black holes. We explore what black holes are, how they form from the remnants of massive stars, and the different types, such as stellar, supermassive, and intermediate black holes. The episode discusses the event horizon, singularity, and the mind-bending effects of gravity near a black hole. We also touch on recent discoveries, such as the first image of a black hole, and the role of black holes in galaxy formation and the broader universe. This episode unravels the mysteries surrounding these fascinating cosmic phenomena.