https://www.indiatoday.in/science/story/suns-greatest-mystery-cracked-2412146-2023-07-26
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7/26/23 at 12:04pm
The Sun's corona, the outermost layer of its atmosphere, is about 200 times hotter than the photosphere, the Sun's surface. This phenomenon, known as the coronal heating problem, has puzzled astrophysicists for decades.
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