The sun has just fired off an eruption so intense it ranks among the most powerful solar flares seen in three decades, a jolt ...

Fired from a vast sunspot, the "coronal mass ejection" is expected to reach Earth on either Thursday or Friday this week.

Northern lights occur when a solar flare interacts with Earth's atmosphere.

Close-up observations of the Sun explain how solar flares start, grow, and send high-energy particles racing through space.

A strong solar flare peaked just after 9 a.m. Tuesday. What does that mean?

Something stormy is happening in the skies right now. The sun has released a “relentless barrage” of solar flares (21 overall ...