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PUBLIC MARKS from recent with tag electrons

11 March 2007

Aurora (astronomy) - Wikipedia, the free encyclopedia

The aurora is a common occurrence in the ring-shaped zone. It is occasionally seen in temperate latitudes, when a strong magnetic storm temporarily expands the auroral oval. Large magnetic storms are most common during the peak of the eleven-year sunspot

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08 February 2007

SPACE.com -- Galactic Baby Boom Influenced Life on Earth

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