When Earth’s magnetic field took its time flipping
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Sediment cores from North Atlantic reveal pole reversal dragged on for 70,000 years—far longer than previously known.
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What do cycling and rocks have to do with each other?
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U geologist Peter Lippert joins an international team blogging about the geology showcased in each stage of the Tour de France.
Read MoreEvergreen needles act as air quality monitors
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Trees are air quality monitors all around us. U scientists found that magnetic particles on pine needles can indicate levels of air pollution.
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