The Future of the Sun (Note: not in textbook) The Sun fuses hydrogen into helium in a stable reaction. But what happens when the Sun runs out of hydrogen in its core? The timescale for this is about 10 billion years; we are about halfway there. When the Sun runs out of energy, its structure has to change: stellar evolution.
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The Future of the Sun - Case Western Reserve Universityburro.case.edu/Academics/Astr201/EndofSun.pdf · 2017. 4. 25. · a white dwarf. • It shines faintly because it is hot, but
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