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The aurora borealis, or Northern Lights, are seen near the city of Tromsoe, northern Norway, late Tuesday, Jan. 24, 2012. Stargazers were out in force in northern Europe on Tuesday, hoping to be awed by a spectacular showing of northern lights after the most powerful solar storm in six years. (AP Photo/Scanpix Norway, Rune Stoltz Bertinussen) NORWAY OUT

Northern Lights

The Northern Lights, also known as Aurora Borealis, occurs when energy particles from the sun interact with the earth’s magnetic field.