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Van Allen belts
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Van Allen belts


  two doughnut-shaped belts of ionized gas (plasma) that circle the Earth
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Van Allen belts Van Allen Radiation Belts Van Allen Belt Van Allen Radiation Belt
Notes:
The belts are caused by the interaction between the Earth’s magnetic field and the solar wind (stream of ions, electrically charged particles, that are given emitted by the sun). The particles (plasma) is trapped by the Earth’s magnetosphere. When stray particles from these belts collide with air, they fluoresce, causing the polar aurora.
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Associated words [difficulty]:   Van Allen belts , galaxy [2] , solar system [3] , nebula [6]
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