The aurora borealis, also known as the northern lights, is typically observed in the thermosphere and exosphere layers of the Earth's atmosphere. These layers, located at high altitudes above the Earth's surface, extend from approximately 80 kilometers (50 miles) to several hundred kilometers.
The auroras are caused by the interaction of charged particles, primarily electrons and protons, from the solar wind with the Earth's magnetosphere. As these charged particles enter the Earth's upper atmosphere, they collide with gases such as nitrogen and oxygen. The energy released during these collisions produces the characteristic colorful light displays of the auroras.
While the thermosphere and exosphere are where the auroras occur, the exact altitude can vary depending on factors such as solar activity and magnetic conditions.
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They'd be the Southern Lights, not northern.
A. In October 2011, the colorful lights of an aurora borealis were witnessed by people living in some southern U.S. states, which is highly unusual
A.It will likely be a long time before another aurora borealis will be visible to people living in the U.S. southern states.
D.RESERVED D.The natural processes that produce auroras
A. A photographer in Arkansas who captured images of the October 2011 aurora borealis usually spends his time chasing tornadoes.
C. Confront
C.What are some of the factors that can cause storms to develop on the sun?
B.Inform readers about a natural phenomenon that surprised scientists and people by occurring much farther south than usua
They strike the magnetic field generated by the Earth.
A black aurora is a type of aurora that exists at the top of the ionosphere, where electrons flow upward into space (unlike normal aurora, which involve downward flowing electrons), leaving deep cavities in the atmosphere, making blank spaces when regular aurora are seen, hence being "black" or non-luminous, but having the shape of aurora.
The northern lights are in the northern hemisphere hence nearer the north pole.
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yes . my friend says that she see aurora australis here in the philippines
but im not sure :)