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Articles

• How Things Work: Auroras

  isplay observed in the night sky. During an aurora, the sky lights up on its own in a multitude of colors, ranging from red to green to purple. Glowing colors in the sky pulsate gently and grow bigger and bigger until they fill the entire sky.

  Auroras occur mostly in the regions around the north and south poles.

  SciTech | September 24, 2007