NASA ScienceCasts: On the Cusp of Understanding
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5 سال پیش
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NASA is using sounding rockets
NASA is using sounding rockets to study the cusp, a point where the magnetic bubble that surrounds our planet dips inward and touches down to Earth.
NASA Science: http://science.nasa.gov/
NASA Science: http://science.nasa.gov/
5 سال پیش
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