The Van Allen radiation belt is a zone of energetic charged particles, most of which originate from solar wind, that are captured and held around a planet by that planet's magnetosphere. Earth has two such belts, and sometimes others may be temporarily created.
The Van Allen radiation belt is a zone of energetic charged particles, most of which originate from solar wind, that are captured and held around a planet by that planet's magnetosphere. Earth has two such belts, and sometimes others may be temporarily created.
Source: Wikipedia "Van Allen radiation belt" · CC BY-SA 4.0
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