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The Sun won’t explode in a supernova (it lacks mass); it will become a red giant and, after expanding, will shed its outer layers, leaving behind a small, dense, slowly cooling core… a white dwarf
An explosion occurs when the time taken for a given process to release energy is much shorter than the time required for the system to adapt and dampen that energy-release process
Info: the Sun maintains its stability through hydrostatic equilibrium, in which the inward gravitational pressure exerted by its mass is counterbalanced by the outward thermal pressure generated by hydrogen fusion in its core
An explosion occurs when the time taken for a given process to release energy is much shorter than the time required for the system to adapt and dampen that energy-release process
Info: the Sun maintains its stability through hydrostatic equilibrium, in which the inward gravitational pressure exerted by its mass is counterbalanced by the outward thermal pressure generated by hydrogen fusion in its core