SMRTR Science & EngineeringMay 25, 2026Interesting Engineering

Earth’s magnetic core changed course deep beneath Pacific Ocean, data reveals

SMRTR summary

In 2010, a massive region of molten iron nearly 2,200 km beneath the Pacific Ocean suddenly reversed direction, shifting from westward to eastward flow — contradicting long-held beliefs about Earth's stable core movements. Using satellite data spanning 1997 to 2025, researchers confirmed this dramatic shift and say it raises new questions about Earth's deep interior, with potential implications for navigation systems and space weather forecasting.

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