Rare solar flare caused radiation in Earth’s atmosphere to spike to highest levels in nearly 20 years, researchers say
Levels of potentially dangerous cosmic radiation in Earth's atmosphere rose to a two-decade high in November after a rare solar super-flare pummeled the planet with high-speed particles from the sun.
Astrobitica
December 4, 2025 (Last updated: December 4, 2025) 1 minute read
Levels of potentially dangerous cosmic radiation in Earth’s atmosphere rose to a two-decade high in November after a rare solar super-flare pummeled the planet with high-speed particles from the sun.