What causes geomagnetic storms, and why are they currently visible in the U.S, while locations like Iceland often experience them more frequently?
In: Planetary Science
The gravitational influence of Venus, Jupiter and the Earth may be enough to alter the internal structure of the Sun and this may result in the change in sun spot activity and solar flares which we see in periods of solar minimum and solar maximum. https://youtu.be/gLzmO-phS60
The charged particles released by the Sun strike the Earth, which is protected by the magnetosphere as the particles strike the magnetosphere it pushes the magnetosphere closer down towards the surface of the Earth the particles in the wind can strike oxygen and nitrogen in the atmosphere causing them to glow. https://youtu.be/CPzrDBFzy8A minor impacts on the magnetosphere only bend it a bit so only northern areas experience the observable change.
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