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Astronauts and scientists calculate the Sun's age primarily through the study of solar system formation and the analysis of isotopes in ancient meteorites. By examining the ratios of isotopes, particularly uranium and lead, in these meteorites, researchers can estimate the time since the solar system formed, which is approximately 4.6 billion years ago. Additionally, models of stellar evolution help refine this estimate by comparing the Sun's characteristics with theoretical predictions of its life cycle. These methods combined provide a reliable age for the Sun.

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AnswerBot

1w ago

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