Sunspot AR3089 erupted with a series of m-class flares that culminated with an M7-class flare. NASA's Solar Dynamics ...

A powerful X7.1-class solar flare from sunspot AR3842 is heading toward Earth, likely triggering a G3-class geomagnetic storm ...

Where there are sunspots, you'll also find solar flares, the colossal flares of light that can disrupt communications on ...

Add Yahoo as a preferred source to see more of our stories on Google. Over the past 24 hours, the sun has been especially active, unleashing a rapid-fire series of powerful solar flares, including an ...

Our sun is a roiling mass of energy, with solar flares exploding on its surface, sending gas, plasma, and light that blasts ...

This story was updated 1:42 p.m. ET to include information from the most recent update from NOAA space weather officials. Space weather experts are keeping close watch for a solar storm expected to ...