3. The Main Sequence Star
STAR LIFE · the long calm middle
The long, stable adulthood: hydrogen fuses to helium in the core, and the outward push of fusion balances the inward pull of gravity in a truce lasting eons. The heavier the star, the shorter the truce; giants burn out in millions of years while red dwarfs will outlast a thousand Suns. Our own star is about halfway through this chapter, comfortably middle aged.
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