The Aurorae - what Causes the Beautiful Light Displays

The "Northern Lights" of the aurora borealis are among nature's most beautiful sights. This light is created by high energy particles that stream from the Sun and collide with the Earth's atmosphere. The aurorae is not an occasional occurence in nature, they are a permanent feature of the Earth's upper
atmosphere. Auroral displays vary in intensity, and sometimes they fade away to almost nothing. But they are always there.
There are aurorae in both hemispheres of the Earth the aurora borealis is around the North Pole and the aurora australis around the South Pole. …