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 solar ...

"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 ...

Scientists have discovered a distant solar system very much like our own, in which the orbits of all known planets lie in nearly the same plane and are aligned with the star's rotation. In recent ...

NASA’s Kepler Mission has released 43 days of science data on more than 156,000 stars. These stars are being monitored for subtle brightness changes as part of an ongoing search for Earth-like planets ...