Earth's Geographic Poles Wander More Than Thought, Study Finds

A new study has revealed that the Earth's geographic poles may be less immutable than previously known. Researchers analyzed ancient sea-level changes to understand the movement of the poles, which can shift due to true polar wander. This phenomenon is driven by plate tectonics and mantle convection, causing the solid outer layers of the globe to move. The study found that the poles moved dramatically four times in the geological past, with the most recent event occurring around 190 million years ago. The researchers also discovered that true polar wandering continues today, although at a slower rate. This movement can potentially affect climate systems and is measurable by satellites.