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A Provocative Theory by NASA Scientists Asks: What If We Weren’t the First Advanced Civilization on Earth?
In the grand sweep of Earth’s four-billion-year history, 300 years is barely a blink. And yet, that blink — our industrial era — has already reshaped the atmosphere, oceans, and sediments. If ...
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Scientists say they cracked how an advanced ancient society vanished
Archaeologists have long known that complex societies can rise, flourish and then disappear so completely that only scattered ...
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