The twin eruptions briefly disrupted radio signals across the dayside of Earth.
The northern lights may be visible this weekend after a flurry of activity on the sun, with an X-class solar flare and ...
NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare and X1 flare. See time ...
NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare. See at time-lapse of ...
A sunspot erupted earlier today producing an X1.9-class solar flare. The light and X-rays produced passed Earth about 8 minutes later, at the speed of light. Other WRAL Top Stories Look closely at the ...