In the pre-dawn hours of Nov. 11, the sun let loose a dazzling but disruptive display of its power: an X5.1-class solar flare, the most intense eruption of 2025 and the strongest since October 2024.
The highest-resolution images of a solar flare captured at the H-alpha wavelength (656.28 nm) ever captured may reshape how we understand the sun's magnetic architecture—and improve space weather ...