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The Branded Child by Edward J. Van Allen5/31/2023 ![]() ![]() ![]() Other nuclei, such as alpha particles, are less prevalent. The belts trap energetic electrons and protons. The belts are in the inner region of Earth's magnetic field. By trapping the solar wind, the magnetic field deflects those energetic particles and protects the atmosphere from destruction. Most of the particles that form the belts are thought to come from solar wind and other particles by cosmic rays. Earth's two main belts extend from an altitude of about 640 to 58,000 km (400 to 36,040 mi) above the surface, in which region radiation levels vary. The belts are named after James Van Allen, who is credited with their discovery. Earth has two such belts, and sometimes others may be temporarily created. A cross section of Van Allen radiation beltsĪ Van Allen radiation belt is a zone of energetic charged particles, most of which originate from the solar wind, that are captured by and held around a planet by that planet's magnetosphere. ![]()
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