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When a star leaves the main sequence and expands toward the red giant region, what is happening inside the star?
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When a star leaves the main sequence and expands toward the red giant region, what is happening inside the star?

User Sidoshi
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1 Answer

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The core of the star starts fusing heavier materials and expands to compensate. The star fuses materials until it reaches iron, and then when it reaches iron it either goes supernova, or collapses into a white dwarf, neutron, magnetar,
Or pulsar
User Mackie
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