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The Earth's inner core is an enduring mystery: Here's how researchers are starting to solve itDeep beneath our feet, at a staggering depth of over 5,100km, lies Earth's inner core—a solid ball of iron and nickel ... protecting us from harmful solar radiation. This magnetic field might ...
A massive ball of plasma and accompanying magnetic field ejected from the sun is expected to strike Earth on Thursday morning, potentially triggering auroras as far south as Alabama, according to ...
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