Northern Lights: Aurora Borealis, Aurora Australis
By Rassin Roshan | July 10, 2014
Northern lights. What are Northern Lights, and can we create our own Northern Lights: Aurora Borealis, Aurora Australis? As many of us enjoy the colorful sky of the far northern hemisphere stretching from Alaska, Canada, Greenland, Iceland, Norway, Sweden, and Finland to Siberia; yet not many of us have actually seen this beautiful phenomenon.
Northern Lights Occurrence
What is the difference between Aurora Borealis & Aurora Australis?
These magnificent Northern Lights show-of-light happen on the far North Pole and far South Pole where the magnetic field is the strongest. When the lights happen in the northern hemisphere it is called “Aurora Borealis”. These lights appear in a swirly colorful dancing rhythm. It is known that the solar winds stream away from our sun at speeds of about 1 million miles per hour; such an amazing spectacle. These lights also appear at the South Pole or southern hemisphere all the way to its actual pole it is known as the “Aurora Australis”, or the southern lights. These lights are best viewed from Antarctica, where the sky is clear. Its formation is just the same in the South as it is in the North. Again, the interaction of the southern solar winds of the upper atmosphere interacts with the highly charged electrons in the earth’s atmosphere, create one of physics beautiful sensations.
Northern Lights Visibility
Do Aura Borealis and Aura Australis make sounds?
No, as the name suggests, the Northern Lights can be viewed at the northern hemisphere almost every night when the sky is clear. It occurs frequently in a belt of radius of 2500 km centered at the magnetic North Pole. It is difficult to see the Northern Lights from Europe, due to polluted sky. There is no seasonal time for viewing these spectacular lights. You can view them if you are in the area, all year around. There many shapes and movements depend on the wind current. Some might ask how healthy is it to be exposed to a concentration of highly charged electrons? The answer is simply, no health risks! Our existence and environment functions with electrical energy! Our brain produces its own charge, so does our heart. If you recall, when our heart stops beating, we need an electrical charge to get it pumping again. Personally, I believe it is safe to visit the northern or southern hemispheres and get close to the poles. Yes, both Aurora Borealis and Aurora Australis create magnetic noise that sounds like hissing. To get an in depth understanding, please visit a documentary Minnesota Planetarium video recorded by Steve McGreevy. This scientific video was produced by Joel Halvorson; NASA Earth Sun Museum Alliance (ESMA). If you wish to recreate a similar look for your summer night backyard party, you may want to use glow-in-the-dark gadgets. If you are interested in article on our Universe.
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