When you buy through links on our articles, Future and its syndication partners may earn a commission. The earliest datable sunspot drawings based on Johannes Kepler's solar observations with camera ...

(CNN) — German astronomer Johannes Kepler made sketches of sunspots in 1607 from his observations of the sun’s surface — and centuries later, the pioneering drawings are helping scientists solve a ...

"Half-forgotten" sunspot drawings by Renaissance astronomer Johannes Kepler are showing us more about how the sun's cycle of activities work. Kepler (1571-1630), who was born in what we now call ...