Summary
Solar flares are sudden releases of energy from the Sun’s magnetic field that can disrupt satellite operations, radio communication, GPS signals, and other space-based technologies. A major challenge is that scientists still lack reliable short-notice warnings for when a flare is about to begin. This CAREER project studies fast, small-scale activity in the Sun’s lower atmosphere, including chromospheric jets and compact brightenings that may appear shortly before flares. By identifying repeatable “magnetic fingerprints” of flare onset, the research will improve understanding of flare initiatio