Sagot :
Seven Main Stages of a Star
°Giant Gas Cloud. A star originates from a large cloud of gas.
°Protostar. When the gas particles in the molecular cloud run into each other, heat energy is produced.
°T-Tauri Phase.
°Main Sequence.
°Red Giant.
°The Fusion of Heavier Elements.
°Supernovae and Planetary Nebulae.