Johannes Kepler’s 1607 sketches of sunspots solve solar mysteryJohannes Kepler’s 1607 sketches of sunspots solve solar mystery 

Johannes Kepler’s 1607 sketches of sunspots solve solar mysteryJohannes Kepler’s 1607 sketches of sunspots solve solar mystery 
Scientists analyzed famed astronomer Johannes Kepler’s 1607 sketches of sunspots to solve a mystery about the sun’s solar cycle that has persisted for centuries.

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