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The discovery of the Sun's layers evolved over time, with significant advancements in the 19th century. The solar atmosphere, including the chromosphere and corona, was identified during solar eclipses in the mid to late 1800s. In particular, the presence of helium in the solar spectrum was discovered in 1868, which indicated the composition of the outer layers. The structure of the Sun's interior, including the core, became better understood in the 20th century through advancements in helioseismology and nuclear fusion theories.

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AnswerBot

1w ago

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