Friday, 25 January 2013

Fascinated by the beauty of Aurora lights, a must see natural wonder of the world

Before I die, I want to see all the wonders of the world, one of which is Aurorar Borealis or Northern lights, I have always been fascinated by their beauty... 
 The exquisite play of colorful lights created naturally by our incredible universe...
 So I decided to find out what causes these exquisite mind boggling visions...
The aurora borealis is caused by particles from the sun blowing toward the earth with the solar wind. When these particles hit the earth's magnetic field, the crash of atoms and molecules creates a beautiful sight. Oxygen atoms reflect green and red light. Nitrogen atoms give off a blue and red glow.
The lower edges of the lights are usually about 100 kilometres above the Earth, which is about ten times higher than a jet aircraft flies. The top of the lights sometimes reach over 350 kilometres above the Earth!
In the spring and fall, when the lights are very strong, crackling noises can be heard. This sound is actually the earth's magnetic field, but you have to be far away from city noise to hear it. 
explanation taken from http://www.funtrivia.com/askft/Question25477.html


Hope you enjoyed these exquisite images as much as I did

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