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Magnetic fields may hold clues to heat of sun's corona

Scientists are learning more about the sun's magnetic fields thanks to the Chromospheric LAyer Spectropolarimeter-2 sounding rocket and suspect the secret behind the extreme heat of the sun's corona, which is much hotter than the surface, may lie in the fields' strength variations. "We're fairly sure that it's because of the magnetic fields, because we see the most heat in the places where there are the most magnetic fields, but we don't really know how that happens," said David McKenzie, an author of a study published in Science Advances.

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