What solar wind is the subject of this guide ? the essential context first, then the detail, so you can skim or dig in with equal confidence. Charged particles are continually given off by the sun. They are known as the Solar Wind and are strongest when sunspot activity is at its height. Sun spots are the darker areas on the surface of the sun. These areas of cooler gas occur when the Sun’s magnetic field blocks the flow of heat from the core.
When the Solar Wind reaches the earth’s magnetic field, the charged particles interact with gases in the Earth’s atmosphere 10 Km (6 Miles) above the surface.
This interaction causes the particles to send out light, seen from earth as an fantastic light show, best visible from within the Arctic and Antarctic circles. In the northern hemisphere, this is known as the AURORA BOREALIS, and in the southern hemisphere as the AURORA AUSTRALIS.
What solar wind: key takeaways
If you remember one thing about what solar wind, make it this: the practical points above apply directly ? use them as your checklist. For a deeper look, revisit the sections that match your situation, and keep what solar wind in mind as the thread that ties them together.
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Further reading: What solar wind on Wikipedia.
