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* ScienceMarchesOn
** When the book was written, scientists indeed believed the Sun would slowly fade, eventually beyond visibility. We now expect it to get very slowly brighter over the next few billion years, before swelling into a red giant and destroying the Earth. (Though after that it will eventually die back down).
** Also, time scales; we now know the Earth's core will be completely cooled long before the sun runs down.
** When the book was written, scientists indeed believed the Sun would slowly fade, eventually beyond visibility. We now expect it to get very slowly brighter over the next few billion years, before swelling into a red giant and destroying the Earth. (Though after that it will eventually die back down).
** Also, time scales; we now know the Earth's core will be completely cooled long before the sun runs down.
