Earth's magnetic field shields us from damaging radiation from the sun's, but the field strength varies. Scientists are uncovering details about a so-called geomagnetic spike that happened around 1,000 BC that could alter our understanding of the magnetic field and the planet's interior - and exploring how a similar spike could impact us if it occurred today. Related:
from Inhabitat - Green Design, Innovation, Architecture, Green Building https://inhabitat.com/geomagnetic-spike-3000-years-ago-could-offer-insight-into-earths-hidden-interior
via Inhabitat
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