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Black Holes are celestial objects with gravitational forces so strong that nothing, not even light, can escape their pull once it crosses the event horizon. They are formed from the remnants of massive stars undergoing a supernova explosion, leading to a dense core that collapses in on itself. In the context of cosmology, black holes play a significant role in our understanding of the universe's evolution and structure. As a part of astronomy, studying black holes provides insight into stellar evolution and the fundamental laws governing matter and energy. They represent extreme environments where general relativity and quantum mechanics intersect, making them a fertile ground for testing theories about the nature of spacetime. In the hierarchy of science, cosmology, supernova, and black hole, each category builds upon the one before it. Science is the foundational discipline that encompasses various fields, including astronomy. Astronomy studies celestial objects and phenomena, while supernovae represent a specific type of stellar explosion. Cosmology tackles the large-scale structure and evolution of the universe, with black holes being an important component in understanding its dynamics and formation.