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South Atlantic Anomaly

Trapped protons (in places like the South Atlantic Anomaly) and galactic cosmic rays (GCRs) that are filtered by Earth's magnetosphere

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Jan 15, 2026
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How strong is the radiation in the Van Allen belts compared to low Earth orbit and deep space?

The Van Allen radiation belts are regions of trapped energetic charged particles whose local intensities can be orders of magnitude higher than the typical background encountered in low Earth orbit (L...