Stella Evolution

Stella Evolution refers to the transition of stars through different phases of their life cycle, driven by nuclear fusion. Stars begin as gas clouds, forming into protostars. As they ignite nuclear fusion in their cores, they become main-sequence stars, like our Sun. Over time, they exhaust their fuel, expanding into red giants. Eventually, they shed their outer layers, creating planetary nebulae, while the core collapses into a white dwarf, neutron star, or black hole, depending on the star's mass. This process not only transforms the star but also enriches the universe with elements necessary for new stars and planets.