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Earth's Magnetic Field Shifts: New Risks Uncovered

10/13/2025

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Summary

Story summary

The European Space Agency's Swarm mission reveals changes in Earth's magnetic field over the past 11 years.
The South Atlantic Anomaly has expanded since 2014 and now covers 0.9% of Earth's surface, increasing satellite radiation risks.
Canada's magnetic field has weakened while Siberia's has strengthened, causing the magnetic north pole to drift toward Siberia.
These findings enhance our understanding of Earth's core dynamics and their impact on navigation and technology.

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Story summary

The European Space Agency's Swarm mission reveals changes in Earth's magnetic field over the past 11 years.
The South Atlantic Anomaly has expanded since 2014 and now covers 0.9% of Earth's surface, increasing satellite radiation risks.
Canada's magnetic field has weakened while Siberia's has strengthened, causing the magnetic north pole to drift toward Siberia.
These findings enhance our understanding of Earth's core dynamics and their impact on navigation and technology.