Add Yahoo as a preferred source to see more of our stories on Google. Officially, solar maximum is defined as the peak month of a given solar cycle, based on monthly sunspot numbers. More specifically ...

In direct contradiction to the official forecast, a team of scientists led by the National Center for Atmospheric Research (NCAR) is predicting that the Sunspot Cycle that started this fall could be ...

The solar cycle continues to ramp up with currently the largest number of sunspots in the last two decades and maybe even longer. NOAA’s Space Weather Prediction Center(SWPC) reports the estimated ...

A vast, magnetically tangled sunspot has rotated into direct view of Earth, raising the prospect of powerful solar eruptions in the coming days. The active region is large enough to dwarf our planet ...

An X7.1 (R3) solar flare erupted from Region 3842 this evening - as seen in this animation (courtesy of jhelioviewer). This was the second strongest flare of Solar ...

BOULDER–Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the Sun’s impact on Earth over the course of the 11-year solar ...

Our sun has been shining for some 4 billion years and will do so for another 4 billion years. Many of you are aware that our star, the sun, goes through a period of both 11-year and 22-year cycles.

Add Yahoo as a preferred source to see more of our stories on Google. In April, a total solar eclipse was visible to millions in North America. This was followed in May by the largest geomagnetic ...