The sun has just fired off an eruption so intense it ranks among the most powerful solar flares seen in three decades, a jolt ...
The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar flares, including a hidden X-class outburst, a new paper reveals. The study sets ...
Close-up observations of the Sun explain how solar flares start, grow, and send high-energy particles racing through space.
This Feb. 4, 2026, image from NASA's Solar Dynamics Observatory (SDO) captures a strong solar flare erupting from the star.