Islamic Scientific Schools

In the Name of Allah---the Most Beneficent, the Most Merciful. The evolution of stars is a complex and fascinating process that spans millions to billions of years, governed by the fundamental principles of physics. This journey from formation to death is determined primarily by the star’s mass. Here is a detailed overview of the stellar evolution process: 1. Star Formation Molecular Clouds Origin : Stars begin their lives in molecular clouds, also known as stellar nurseries. These clouds are cold, dense regions composed mainly of hydrogen molecules, along with helium and trace amounts of heavier elements. Gravitational Collapse : Under the influence of gravity, regions within these clouds collapse to form dense cores. This collapse can be triggered by events such as nearby supernovae, which compress the gas and dust. Protostars Accretion : As the dense core collapses, it forms a protostar surrounded by a rotating disk of gas and dust. Material from the disk accretes onto the protostar...