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Mayan calendar predicts solar flares

Over the past decade, the Mayan calendar has been subjected to close examination and intense debate. Could an ancient ...
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For the Maya, solar eclipses were a sign of heavenly clashes − and their astronomers kept sophisticated records to predict them

El Castillo pyramid illuminated at night under a starry sky in Chichen Itza, Mexico, one of the largest Maya cities. Matteo Colombo/DigitalVision via Getty Images We live in a light-polluted world, ...