Russian mystery: Siberia's ‘colossal’ exploding craters spark concerns for Arctic - Daily Express

In 2014 it was at the centre of a bizarre story when a sinkhole was discovered that appeared to be the result of a huge explosion – and experts could not explain why.

“When the first crater appeared, the famous Yamal one, in 2014, many researchers rushed to study it and build models of this crater.

“However, every new crater that followed did not fit into any of the models.

“Every crater brings its own unique features.”.

The latest crater was spotted in August this year by a TV crew as they flew past with a team of scientists during an expedition.

She said: “The fact is that there could be a new geochemical process that we never imagined would happen – to have exploding craters on land.

Some researchers have compared the craters to cryovolcanoes – volcanoes that spew ice instead of lava – thought to exist on Pluto, Saturn’s moon Titan and the dwarf planet Ceres

First, you make a field survey to explore the area, study the crater itself, its walls and host rock

“Researchers build 3D models using flying vehicles and watch the crater’s dynamics and how it fills with water