Solar flares may show predictable warning signs hours before erupting

Scientists studying a massive X-class solar flare on October 3, 2024, found warning signs appearing three hours before it erupted, including rising plasma temperature, turbulence, and movement. Rhythmic patterns repeated every 8 and 20 minutes before the flare, suggesting two separate physical processes at work. These findings could eventually help predict dangerous solar flares, protecting power grids, satellites, and astronauts, though a dedicated full-sun monitoring mission would be needed.