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26 de feb. de 2018 · The Southern Lights, commonly known as the Aurora Australis, is one of the world’s greatest wonders. Travellers come from across the globe to witness the spectacular natural light display in the high-altitude Antarctic region. The Southern lights are much more elusive than their Northern Hemisphere counterpart- Aurora Borealis.
Aurora occurs in an oval around the magnetic poles in both hemispheres. It is called aurora australis in the Southern Hemisphere, and sometimes referred to as the ‘southern lights’. It is called aurora borealis in the Northern Hemisphere, and sometimes referred to as the ‘northern lights’.
17 de abr. de 2016 · NASA Television’s newest offering, NASA TV UHD, brings ultra-high definition video to a new level with the kind of imagery only the world’s leader in space e...
In the Arctic Circle, they are known as aurora borealis or the northern lights, while in the Antarctic Circle they are called aurora australis or the southern lights. These dramatic and colorful lights are created when electrically charged particles from solar winds enter the Earth’s atmosphere and interact with gases in the atmosphere.
Auroras occur in the earth’s upper atmosphere, above about 90 kilometres, when oxygen atoms (O) and nitrogen molecules (N 2) interact with a stream of charged particles emitted by the sun. This ‘solar wind’ blasts out from the sun and connects with the earth’s magnetic field at speeds of 400–700 kilometres per second.
The aurora australis is visible from high southern latitudes in Antarctica, the Southern Cone, South Africa, Australasia and under exceptional circumstances as far north as Uruguay. The aurora borealis is visible from areas around the Arctic such as Alaska, Canada, Iceland, Greenland, the Faroe Islands, Scandinavia, Scotland, and Russia.
19 de oct. de 2023 · Auroras are visible almost every night near the Arctic and Antarctic Circles, which are about 66.5 degrees north and south of the Equator. In the north, the display is called aurora borealis, or northern lights. In the south, it is called aurora australis, or southern lights.
