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Sunday, November 20, 2016
NASA Video: The Aurora Borealis from Space
Just what happens to create the Aurora Borealis, sometimes referred to as "polar light"?
Well, there is nothing man-made about it. The Aurora Borealis is a natural display of light, usually in the Arctic or Antarctic regions of the earth. The lights are caused when the magnetosphere is disturbed by solar winds. The changed particles of the solar wind then combine with the magnetospheric plasma (in the form of electrons and protons). The resulting ionization of atmospheric elements then creates light of varying color and complexity.
In northern latitudes, the effect is known as the Aurora Borealis (a.k.a. "Northern Lights), named for the Roman goddess of dawn, Aurora, and the Greek name for the North Wind, Boreas, by Galileo Galilei in 1619.
Labels:
1619,
Antarctic,
Arctic,
Aurora Borealis,
Galileo,
Northern Lights,
polar light
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