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?