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Thursday, 12 June 2014

Southern Lights

Southern  Lights
Another name for the Southern Lights is Aurora. An aurora aurialis is a natural light display in the sky, usually of greenish color but sometimes red or blue.

Aurora is caused by the collision of energetically charged particles with atoms in the high altitude thermosphere within our atmosphere.
To take full advantage of Flickr, you should use a JavaScript-enabledAuroras are associated with the solar winds that flow past Earth. These winds flow out from the Sun and contain plasma particles (ionized gas) which gets pulled into the Earth's magnetic pole fields.
As they accelerate towards the Earth, collisions occur between these ion particles and nitrogen and oxygen atoms in our atmosphere, releasing energy in the form of amazing aurora lights. The aurora often appear as "curtains" of folding light constantly changing shape.
Old folktales have suggested that the aurora can create brief and faint noises such as claps, static, or crackles heard on rare occasions by those on the ground. Recent scientific research has shown that this could in fact be true with clapping sounds recorded during an aurora display.

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