Physics - Astrophysics - Stellar evolution - life cycle of stars - The Life of a Star

Step-by-step stellar evolution. Step 1 'Birth - Nebula to Protostar': Molecular cloud (H₂ + dust) collapses under gravity. Jeans mass/criterion determines if collapse occurs. Core heats up (gravitational PE → thermal). Protostar forms: not yet fusing, radiates from contraction. T Tauri phase: strong

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Physics - Astrophysics - Stellar evolution - life cycle of stars - The Life of a Star
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Physics - Astrophysics - Stellar evolution - life cycle of stars - The Life of a Star

vivmagarwal
vivmagarwalJan 29, 2026

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Step-by-step stellar evolution. Step 1 'Birth - Nebula to Protostar': Molecular cloud (H₂ + dust) collapses under gravity. Jeans mass/criterion determines if collapse occurs. Core heats up (gravitational PE → thermal). Protostar forms: not yet fusing, radiates from contraction. T Tauri phase: strong

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PhysicsAstrophysicsGrade 9, Class 11, Class 11, Grade 10, AS Level, Grade 11, Grade 12, SL Option

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