How a Japanese Poet's Diary Helps Scientists Reconstruct Solar Cycles

How a Japanese poet's diary helps scientists reconstruct solar cycles

Researchers used a Japanese poet's diary to track solar events that took place over 800 years ago.

800 Years Ago, Japanese Astronomers Saw Strange Red Lights In The Northern Sky, Now Scientists Have Just Revealed What They Were

In 1204, a Japanese poet in Kyoto had seen in the north what no one could explain: three nights after night, successive red lights. And, now, 800 years later, the scientists have solved the riddle – and what they have discovered makes them believe that they have something to be on the lookout for in our sun. Fujiwara no Teika tells of red lights in the north-eastern sky above Kyoto in his… Source

Solar storms and infrastructure at risk: how a medieval Japanese diary warns us - Economic Scenarios

While the daily economic debate focuses on inflation, interest rates, and supply chain bottlenecks, a silent but potentially devastating exogenous threat