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geomagnetic spike, Tag
- 'Geomagnetic spike' 3,000 years ago could offer insight into Earth's hidden interior Thu, 30 Nov 17, 11:59pmEarth's magnetic field shields us from damaging radiation from the sun, but its strength and ability to protect us, is variable. Scientists uncovered details about a geomagnetic spike that happened around 1,000 BC that could...