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Nebulae are vast clouds of dust and ionized gases, often seen in the aftermath of supernovae explosions. They can take on various shapes and forms, from irregular wisps to well-defined rings and shells. Nebulae serve as stellar nurseries, providing the raw materials for the formation of new stars. Within a nebula, gravity pulls together vast clouds of dust and gas into dense pockets that eventually collapse under their own weight, sparking nuclear fusion and giving birth to new stars. The study of nebulae is essential to understanding the life cycle of stars, the distribution of elements in the universe, and the formation of planetary systems.