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According to the current models, the possible reasons for a supernova are thermal runaway or core collapse. Thermal runaway is probably your best bet, and happens when the core of the star gets ho...
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#1: Attribution notice removed
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System
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2021-03-30T23:53:20Z (over 3 years ago)
Source: https://worldbuilding.stackexchange.com/a/117336 License name: CC BY-SA 4.0 License URL: https://creativecommons.org/licenses/by-sa/4.0/