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Earth's Supposedly Impenetrable Radiation Barrier Has Been Breached
Looking at photographs of Earth suspended against the darkness of space, you'd be forgiven for thinking our planet is isolated and alone.
AI Summary
Earth is surrounded by the Van Allen belts, two donut‑shaped regions of space that contain energetic protons and electrons. These particles are trapped by Earth’s magnetic field, creating a protective shield around the planet. The belts form a close, continuous envelope that isolates Earth from much of the surrounding space environment.
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