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Will the sun become a white dwarf or a red giant?

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A comparison of the Sun in its yellow dwarf phase and red giant phase. Today, our Sun is a healthy yellow dwarf star. If you want to be precise, it is a “G V star”. This yellow dwarf will happily burn 600 million tonnes of hydrogen per second in its core for 10 billion years, generating the light that is required to make our planet habitable. read more

Diagram showing the evolution of a Sun-like star, from protostar to red giant. After this, the core will become a white dwarf, while the outer layers will form a planetary nebula. read more

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