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Old 8th March 2012, 08:21 PM   #1 (permalink)
Ursa major
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Question This Week's Solar Storm

In trying to find out what happened regarding the recent solar storm, I read this article in the Grauniad.

The article contained this paragraph (whose main points were repeated in the graphics here):
Forecasters at the US government's Space Weather Prediction Center said the storm is growing in intensity as it speeds outward from the sun. The charged particles hit Earth at 4 million mph (6.4 million kph).
Why does the storm intensify as if moves from the sun towards the Earth? (I can see why it might not dissipate - the storms seems to be directional - but intensification is another matter.) Is this effect caused by the Earth's magnetic field?
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