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How Kepler’s 400-year-old sunspot sketches helped solve a modern mystery

Wednesday July 31, 2024. 10:16 PM , from Mac Megasite
Enlarge / A naked-eye sunspot group on May 11, 2024. There are typically 40,000 to...
https://macmegasite.com/2024/07/31/how-keplers-400-year-old-sunspot-sketches-helped-solve-a-modern-m...

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