On December 1, 2025, the sun unleashed a significant X1.9-class solar flare, sparking disruptions to radio communications across Australia and parts of Southeast Asia. This flare, emanating from ...

This Feb. 4, 2026, image from NASA's Solar Dynamics Observatory (SDO) captures a strong solar flare erupting from the star.

Earth’s magnetic field was rattled by a solar outburst that arrived with almost no warning, lighting up skies and briefly reminding power grid operators and satellite controllers how vulnerable modern ...

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

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A spot on the sun 10 times larger than Earth has been seen ...