Gi­ant crater mys­tery

First News - - WORLD NEWS -

A huge hole has been spot­ted in the Rus­sian Arc­tic by a TV crew fly­ing over­head. De­spite spec­u­la­tion that the 50-me­tre crater might have been caused by weapons test­ing or even a UFO, sci­en­tists think there’s a per­fectly nat­u­ral ex­pla­na­tion. They say high tem­per­a­tures over the sum­mer must have caused an erup­tion of meth­ane gas be­low the thaw­ing per­mafrost (frozen soil), scat­ter­ing blocks of ice and soil for hun­dreds of me­tres. It’s the 17th gi­ant crater to have been spot­ted in the last six years.

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