A 40-year study shows the Sun’s internal structure subtly shifts between quiet cycles, offering clues to future solar activity.

The combination of the Spring equinox and the Sun's solar cycle starting towards its minimum means now is the last best time ...

Using 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 minimum ...

Aurora records in royal chronicles from Korea show that during the 'Maunder Minimum' between 1645 and 1715, the sun's solar cycles became several years shorter than they are today. When you purchase ...