Giant sinkhole threatens more homes as it widens each week.

When Vadim Kolpakov went on an expedition to the north of Irkutsk region, he had no inkling of the sensational discovery he was about to make.

Scientists intrigued over 'space rock' found 35 years ago, before being dumped in a geologist's fish tank.

High levels of ‘fire ice’ trapped in permafrost may turn Russia into a global leader of new gas sources.

Does a spooky event in New England 238 years ago hold the clue to the eerie blackness that descended one week ago in Siberia?

Giant holes created when pingos erupted after filling with gas.

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

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

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