Scientists Say Solar Flares Are Hotter Than Expected, Could Reach 108 Million Degrees

Sep 12, 2025 - 17:00
Scientists Say Solar Flares Are Hotter Than Expected, Could Reach 108 Million Degrees
A groundbreaking study shows ions in solar flares can reach 108 million°F, about six times hotter than earlier estimates. The research explains decades-old mysteries in flare spectra and urges new “multi-temperature” models to better forecast space weather, protecting satellites, astronauts, and communications from hazardous solar storms.