More craters expected to form due to such eruptions as permafrost melts - and they ARE caused by global warming releasing methane gas.

New discovery of rare crystal Rosenbergite at 'burning ice' site where earth is hot despite temperatures of minus 35C.

Mysterious 'gigantic' hole in remote region spotted by helicopters over gas-rich Yamal peninsula.

Haunting beauty of massive hole as scientists examine frozen lake formed after giant blowout.

As police say lama found in lotus positon was destined for sale on black market, there are claims it was one step away from becoming a Buddha.

Tsar's daughter may, after all, have escaped the execution which wiped out the royal family, says new book.

Reindeer herders find more craters in the far north in a deepening puzzle for scientists. 

Unknown remains of a large creature have been found in Lake Labynkyr, say the first divers to ever reach its floor.

Heavy rain wreaked havoc in Altai region, and also brought an unexpected visitor.