AI Insight
Satellite data from the European Space Agency (ESA) revealed that the liquid iron flow in Earth's outer core beneath the Pacific region reversed its direction around 2010. This unexpected change in flow direction was detected through careful analysis of Earth's magnetic field variations, which are generated by the movement of molten iron in the outer core. The findings provide new insight into the complex and still poorly understood dynamics of Earth's deep interior.
Why it matters
Understanding shifts in outer core flow is important for improving models of Earth's geomagnetic field, which has direct implications for navigation systems, satellite operations, and our ability to predict long-term changes in magnetic field strength and orientation.
The liquid iron in Earth’s outer core doesn’t always behave as expected. When it changed direction in an unexplained way, ESA satellites provided data on the direction of flow, helping scientists gain better insight into the dynamics at the center of our planet.
Source: Earth's outer core beneath Pacific reversed direction in 2010, satellite data reveal