Auroras are natural light displays in the sky, usually seen at night, and particular to the polar regions. They occur in the ionosphere, and are called polar auroras. They are most commonly visible between 65 and 72 degrees north and south latitudes, which would place it in a ring just inside the Arctic and Antarctic Circles. In the north, it is known as the Aurora Borealis, named after the Roman goddess of dawn, Aurora, and the Greek name for the north wind, Boreas, so named by Pierre Gassendi in 1621. The Aurora Borealis is also known as the northern lights, and is visible in the sky only from the Northern Hemisphere. The southern counterpart, the aurora australis, is visible only from high southern latitudes in Antarctica, South America, and Australia. And Auroras can be observed from
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