Aurora - For SteemSTEM Public-Domain Image Repository
USAGE RIGHTS
The above image, generated by @medro-martin is available for unrestricted use under a CC by 4.0 License.
BREIF DESCRIPTION
This is an artist's rendition of an Aurora.
An aurora (plural: auroras or aurorae),[a] sometimes referred to as polar lights, northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in the Earth's sky, predominantly seen in the high-latitude regions (around the Arctic and Antarctic).
Auroras are produced when the magnetosphere is sufficiently disturbed by the solar wind that the trajectories of charged particles in both solar wind and magnetospheric plasma, mainly in the form of electrons and protons, precipitate them into the upper atmosphere (thermosphere/exosphere) due to Earth's magnetic field, where their energy is lost.
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