A mysterious crater that was discovered in East Antarctica last month likely formed beneath a leaky meltwater lake, rather than because of a meteorite impact, researchers now think.
The ring of sunken ice, nearly 2 miles (3 kilometers) wide, was spotted a few days before Christmas on the Roi Baudoin Ice Shelf in East Antarctica, north of Belgium’s Princess Elisabeth research station.
http://www.livescience.com/49545-east-antarctica-crater-new-explanation.html
The Secular Jurist 
fascinating!
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