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Will Comet MAPS survive its fiery solar encounter on April 4?
Comet MAPS is about to face its ultimate test as it sweeps just 101,000 miles above the sun's surface.
Chichén Itzá, "the mouth of the well of the Itzás," was likely the most important city in the Yucatán from the 10th to the 12th centuries. Evidence indicates that the site was first settled as early ...
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