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NOVA | Magnetic Storm | What Drives Earth's Magnetic Field? | PBS
NOVA | Magnetic Storm | PBS
NOVA | Magnetic Storm | When Compasses Point South | PBS
NOVA | Magnetic Storm | Gallery of Auroras Image 9 | PBS
NOVA | Magnetic Storm | See a Reversal 3 (non-interactive) | PBS
NOVA | Magnetic Storm | Preview | PBS
NOVA Online | Teachers | Classroom Activity | Magnetic Storm | PBS
NOVA | Transcripts | Magnetic Storm | PBS
NOVA | Magnetic Storm | See a Reversal 2 | PBS