| 11. | These launchings provided information on the earth s radiation belt.
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| 12. | This belt of charged particles is now known as the Van Allen radiation belt.
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| 13. | Radiation belts present a significant hazard for spacecraft and potentially to human space travellers.
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| 14. | His waves also helped explain the doughnut-shaped Van Allen radiation belts that encircle Earth.
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| 15. | Its tape recorder failed, making it unable to measure the Van Allen radiation belts.
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| 16. | The Van Allen radiation belt lies within the geospace.
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| 17. | Transit 4A, launched June 29, 1961, was the first satellite to use a radiation belt.
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| 18. | A particular concern was raised regarding false claims in the article Van Allen radiation belt.
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| 19. | No magnetic field or Martian radiation belts were detected.
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| 20. | Some of the energetic particles are trapped near the equator of Ganymede, creating mini-radiation belts.
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