The Sun has just hurled a powerful X-class flare toward Earth, and the resulting geomagnetic storm could push shimmering auroras far beyond their usual polar haunts. As the current solar cycle ...

For two nights, dazzling auroras delighted sky-gazers in unexpected places, including in the US as far south as Florida. The cause: dual solar storms unleashed by the sun reaching Earth. A severe ...

A vast, volatile blemish has opened on the face of the Sun, and it is already rewriting the current solar cycle’s record book. The decade’s largest sunspot, a complex tangle of magnetism more than ten ...

Add Yahoo as a preferred source to see more of our stories on Google. The aurora borealis may be visible Thursday night along the U.S.-Canada border. (Space Weather Prediction Center) While February ...