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"path": "/releases/2026/05/260513221818.htm",
"publishedAt": "2026-05-14T01:55:09.000Z",
"site": "https://www.sciencedaily.com",
"textContent": "Researchers in Japan traced a hidden medieval solar storm using ancient tree rings and centuries-old sky observations. The team linked reports of eerie red auroras with spikes of carbon-14 trapped in buried wood, revealing a powerful solar radiation event around 1200 CE. The findings suggest the Sun was far more active at the time, with unusually short solar cycles.",
"title": "Deadly “red sky” solar storm from 800 years ago discovered in ancient trees"
}