The outside world only “discovered” it in 1994, and scientists are still unsure of how it came into being.
Puzzling structuresWhen looking down from orbit at the rural Chongqing Municipality in southwest China, a series of deep, dark gashes may be seen, denting the earth like an alien footprint. Some specialists question whether a meteorite’s impact on Earth could have caused these puzzling structures. Others claim that they developed gradually over a period of...
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