The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar flares, including a hidden X-class outburst, a new paper reveals. The study sets a record for the longest continuous observation of a single active region on our home star.

If you're a stargazer, prepare yourself for an uptick in northern lights activity amid the peak of the current solar cycle. For the next year or more, the likelihood of seeing the northern lights, also known as the aurora borealis, will increase as Earth ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. These processes follow the solar cycle, an 11-year cycle of increasing and decreasing activity on the sun when the sun's magnetic field exhibits a full ...