ナショナルジオグラフィックのインスタグラム(natgeo) - 4月15日 08時19分

Photo by @ciriljazbec The late night drive on sea ice with a snowmobile. We have been capturing northern lights or aurora borealis all night long. Auroras are caused by charged particles, mainly electrons and protons, entering the atmosphere from above causing ionisation and excitation of atmospheric constituents, and consequent optical emissions. Incident protons can also produce emissions as hydrogen atoms after gaining an electron from the atmosphere. #Arctic #Greenland #Northern #Lights #Aurora #Borealis

[BIHAKUEN]UVシールド(UVShield)

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