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並前往https://astronomy.com/magazine/ask-astro/2020/05/when-sirius-a-expands-into-a-red-giant-could-white-dwarf-sirius-b-go-supernova

When Sirius A expands into a red giant, could white dwarf ...

Although it is possible the white dwarf Sirius B might gather enough material from its companion to explode as a supernova, it is not likely.

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