Thursday, July 30, 2015

Ancient Huts May Reveal Clues to Earth's Magnetic Pole Reversals

http://www.space.com/30070-ancient-huts-earth-magnetic-reversal.html?cmpid=514630_20150728_49875866&adbid=10152970060826466&adbpl=fb&adbpr=17610706465


Pmc
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