Fri 19 Jul 24
Kepler's 1607 pioneering sunspot sketches solve solar mysteries 400 years later
Phys.org - Fri 26 Jul 24Using modern techniques, researchers have re-examined Johannes Kepler's half-forgotten sunspot drawings and revealed previously-hidden information about the solar cycles before the grand solar ...
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First reported Wed 17 Jul 24, last update Fri 26 Jul 24