Auroras’ energy

Auroras are a visible reminder of our planet’s connection to space. The “northern lights” and “southern lights”, as they are more commonly known, are like a rain of highly energized particles from the space around Earth. Provoked by storms and winds from the Sun, electrons trapped inside Earth’s magnetic field (magnetosphere) accelerate down toward the upper atmosphere (ionosphere), where they smash into oxygen and nitrogen molecules and release photons of green, red, and blue light. The light shows can take the shape of waving curtains or rays or diffuse clouds.

 
source:
NASA
 

 

 

 

AUTHOR: admin
POSTED: 27th February 2013


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