Aurora Erupts from Coronal Mass Ejection
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Aug. 4, 2010 -- Ground-based magnetometers detected the moment a coronal mass ejection (CME) -- fired from the sun on Sunday -- slammed into the Earth's magnetosphere on Tuesday, producing a gorgeous Aurora Borealis.
Facing North from Silkeborg, Denmark, Jesper Grønne photographed this beautiful scene using a Canon 5D II camera.
Known as the Auroral Borealis (the "Northern Lights," focused around high latitudes in the Northern Hemisphere) and the Aurora Australis ("Southern Lights," around high latitudes in the Southern Hemisphere), these spectacular light displays are caused when energetic particles from the sun (mainly protons) stream into our magnetosphere.
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