Supernovae represent the explosive deaths of massive stars, and they are among the most energetic events in the universe. When a star exhausts its nuclear fuel, its core collapses, and the outer layers are expelled violently into space, releasing more energy in seconds than the sun emits in its entire lifetime. Supernovae play a critical role in cosmic evolution. They spread heavy elements like iron, oxygen, and calcium across galaxies, enriching the interstellar medium from which new stars, planets, and even life can form. Studying supernova remnants allows astronomers to understand the lifecycle of stars and the chemical enrichment of the universe. Observing these spectacular explosions also tests theories of physics under extreme conditions and deepens our understanding of the cosmos.