November 2, 2006
The Northern Lights
Filed under: add to del.icio.us
The northern lights, or aurora borealis, are a luminous display of various forms and colors seen in the night sky. They are caused by high-speed electrons and protons from the sun, which are trapped in the radiation belt above the earth and then channeled toward the polar regions by the earth's magnetic field. These electrically charged particles enter the atmosphere and collide with air molecules, exciting them to luminosity. What are the best locations for viewing the northern lights?
Free web site tools
provided by The Free Dictionary
No responses to "The Northern Lights"
Comments are closed.