Unraveling the Enigmatic 8.5-Year Wobble of Earth's Core

Earth's inner core has been found to wobble with a periodicity of 8.5 years, revealing a tilt of 0.17 degrees between the inner core and the mantle. This suggests that the inner core is denser in the northwestern hemisphere. The discovery provides new insights into the inner workings of our planet and could help interpret surface manifestations of behavior at the core. The inner core's rotation and density variations may play a role in generating Earth's magnetic field. Further research is needed to fully understand the complexities of Earth's core.