The northern lights may be visible this weekend after a flurry of activity on the sun, with an X-class solar flare and ...

All you need to do is make sure solar filters and eclipse glasses are free of marks, scratches, and holes. If they're still safe to use, you can wear them to watch the sunspot groups grow, decay, and ...

Add Yahoo as a preferred source to see more of our stories on Google. Sunspots AR3664 and AR3663 have been erupting with X- and M-class solar flares. Both sunspots are Earth-facing and could ...

With a techniques borrowed from earthquake detection, researchers are learning to predict where sunspots will boil-up. That ...

The same group of sunspots that created intense northern lights on May 10 has now re-emerged from the back side of the sun. The group of sunspots is still really active with solar flares. As soon as ...

NASA has detected a large grouping of sunspots — dark patches on the sun — known as AR3576, which have increased in size in the last month and could be a risk for strong solar flares. Solar flares, ...

A cluster of sunspots 15 times the size of Earth rolled into view. These have been fizzing with activity and could send solar weather toward Earth as early as Saturday. Space weather is mostly ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Sunspots visible during the ...

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 ...

BOSTON - For the first time since 2005, our planet is now under a "severe geomagnetic storm watch." This may sound awfully scary, but in actuality this is exciting news! The northern lights may be ...