The sun has just fired off an eruption so intense it ranks among the most powerful solar flares seen in three decades, a jolt of energy that has put space weather forecasters and power grid operators ...

The direct effect of a large solar flare is not the spectacular luminous auroras, but rather, silence on the airwaves. As the sunspot region 4366 swung into a more Earth-facing position, it generated ...

The northern lights could be visible across as many as 16 northern states in the U.S. on Sunday, Nov. 9, into Monday, Nov. 10, with a G2 geomagnetic storm being forecast by space weather experts at ...

Considered our solar system's largest explosive events, solar flares can sometimes be as strong as a billion hydrogen bombs. Those with enough energy output to rank as an X-class have the potential to ...

Earth is once again in the firing line. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. AR3664 is no ordinary sunspot. The behemoth dark patch on ...

Like the number of sunspots, the occurrence of solar flares follows the approximately 11-year solar cycle. But as the current Solar Cycle 25 approaches its peak, how are the number of solar flares ...