Exploring the shift in the earth’s core very 8.5 years

Beneath the surface of our planet, a mesmerizing dance is underway—a cyclical wobble within Earth’s core, a discovery that might hold significant implications for our understanding of Earth’s magnetic field and geophysical dynamics.

Chinese scientists have unearthed a rhythmic phenomenon: every 8.5 years, the inner core of Earth exhibits a subtle wobble around its rotational axis. This revelation, outlined in a recent study published in Nature Communications, stems from a minute misalignment between the Earth’s inner core and the mantle—the layer below the crust that forms the…