What maintains the stable equilibrium within a star during its main sequence phase?
Answer
A stable balance between the inward pull of gravity and the outward push from nuclear fusion heat
During the majority of a star's life, it maintains equilibrium where the relentless inward force of gravity is precisely counteracted by the outward thermal pressure generated by hydrogen fusing into helium in the core.
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What Factors Determine A Star's Final Lifecycle? - Physics Frontier
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