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Uploaded by tvspace on Jan 17, 2007
The THEMIS mission plans to unravel the tantalizing mystery behind auroral substorms, an avalanche of magnetic energy powered by the solar wind that intensifies the northern and southern lights. Learn more at www.nasa.gov/themis!
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Very clever.
Xigano1 4 years ago
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Very clever.
Xigano1 4 years ago