80 Meter Mystery Hole Found in Siberia

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80 Meter Mystery Hole Found in Siberia
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From the Independent:

A mysterious crater has appeared at the "end of the world" in Siberia, leaving a pit 80m wide and so deep it has not yet been measured. Researchers are being dispatched to investigate the hole, which has confounded scientists with its dramatic appearance. Some have speculated it could have been made by a meteorite striking earth, an underground explosion, or is a sinkhole caused by collapsing rock, the Siberian Times reported.