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Explore 2 published pages tagged with Solar Physics, grouped automatically from article text, entity focus, and recurring topical signals.
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Sunspots appear dark because they are cooler than the surrounding solar surface—the photosphere—with typical temperatures around 3,000 to 4,500 kelvin compared to about 5,70...
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Sunspots appear darker than their surroundings not because they are truly black, but because they are cooler regions on the Sun’s visible surface, or photosphere. The surround...
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