Stellar Structure and Evolution

Stellar structure refers to the internal layers of a star, from the core where nuclear fusion occurs, to the outer atmosphere. Stars form from clouds of gas and dust, eventually igniting fusion, which balances gravity's inward pull. As stars age, they evolve through stages—main sequence, red giant, and potentially supernova. Their mass determines the path: massive stars become neutron stars or black holes, while smaller stars end as white dwarfs. Understanding stellar evolution helps us grasp the life cycles of stars and the formation of elements throughout the universe.