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Whether it's showering spacecraft with lethal radiation, filling the sky with ghostly light, or causing electrical surges that black-out entire cities, space weather is a force to be reckoned with. Many of the serious events involve disturbances in the charged portion of the atmosphere, known as the ionosphere, which stretches from 80 to 1000 kilometres above sea level. The finger of blame has always been pointed at the sun, which bombards the Earth with a stream of charged particles in the form of the solar wind. (Source: New Scientist) |
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