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Tuesday, December 28, 2010

Importance

Importance

A smaller number of particles from the solar wind manage to travel, as though on an electromagnetic energy transmission line, to the Earth's upper atmosphere andin the auroral zones. The only time the solar wind is observable on the Earth is when it is strong enough to produce phenomena such as the and . Bright auroras strongly heat the ionosphere, causing its plasma to expand into the  increasing the size of the plasma , and causing escape of atmospheric matter into the solar wind. result when the pressure of plasmas contained inside the magnetosphere is sufficiently large to inflate and thereby distort the geomagnetic field.

Earthis largely protected from the , a stream of energetic charged particles emanating from the  by its magnetic field, which deflects most of the charged particles. Some of the charged particles from the solar wind are trapped in the  Allen radiation belt. 

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