【Claudia ❤️】評論

最後一句：Auroras often occur as a result of a geomagnetic storm. A geomagnetic storm is the temporary disturbance of the Earth’s magnetic field as a result of an event in space such as a solar flare or coronal mass ejection (the ejection of charged particles from the sun’s corona). In noteworthy geomagnetic storms, Auroras can be seen well south (or north) of where they usually occur. The famous Great Geomagnetic Storms of 1859 produced what witnesses call the most spectacular auroras ever seen. Such auroras were seen throughout the United States, Japan, and Australia. The event lasted for...