Historical Aurora Records Help Scientists Map 8 Solar Cycles from 1560–1640

Researchers have used a new statistical method to analyze centuries-old observations of auroras in the sky. The study successfully reconstructed eight distinct solar activity cycles spanning the period from 1560 to 1640. These findings provide rare insight into the Sun's behavior during an era that predates modern scientific instruments. The results align closely with other independent records of solar activity, strengthening confidence in the methodology. The research marks a significant step forward in understanding long-term solar dynamics using historical data.