https://thedebrief.org/800-years-ago-ancient-japanese-astronomers-recorded-a-massive-solar-storm-and-modern-space-weather-technology-just-confirmed-it/
800 Years Ago, Ancient Japanese Astronomers Recorded a Massive Solar Storm—and Modern Space Weather...
Apr 11, 2026 - Ancient Japanese writings are guiding cutting-edge technology as researchers investigate medieval solar storms.