November 19, 2025 6:38 PM
Century-old Kodaikanal Observatory data offers new insights into the Sun’s magnetic future
Astronomers have tapped into more than a century’s worth of solar observations from the Kodaikanal Solar Observatory (KoSO) to reconstruct the Sun’s past polar magnetic behaviour—paving the way for better predictions of its future activity. For decades, scientists across the world have tried to decode the Sun’s rhythmic patterns of sunspots, flares, and magnetic storms, which directly impact Earth’s environment, satellites, and power grids. A key to understanding these solar cycles li...