The sun is an incomprehensibly gigantic, constantly roiling nuclear furnace—but some days are even busier than others. Based ...

The sun has certainly woken up! It has fired off not one but two powerful X2.5 solar flares within just 7 hours.

The first “intense” flare peaked at 9:07 p.m. ET on April 23, with the second following seven hours later at 4:13 a.m. ET ...

Sunspot AR4366 has been very active with several flares recorded, the biggest of them being an X8.3-class solar flare. NOAA's ...

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

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

Two strong solar flares erupted from the sun within 12 hours of each other, according to information from NASA's Solar ...

The sun released two powerful X2.5 solar flares within a seven-hour window, marking the strongest solar activity in 78 days.

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

An X8.1-class solar flare from Sunspot Region 4366, one of the strongest in three decades, has triggered geomagnetic storm alerts and heightened aurora activity. NOAA and NASA are monitoring for ...

Add Yahoo as a preferred source to see more of our stories on Google. A geomagnetic storm watch has been issued after a powerful solar flare over the weekend. The solar flare peaked at 9:49 p.m. EST ...