Add Yahoo as a preferred source to see more of our stories on Google. Scientists offered a new explanation for the huge craters that keep appearing in Siberia. These craters, first spotted in 2012, ...

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Deep, cylindrical craters in the permafrost of Siberia have puzzled researchers since they were discovered a decade ago. Researchers now propose that the distinctive structures are caused by a ...

Aerial view of melting permafrost tundra and lakes near the Yupik Eskimo village of Quinhagak on the Yukon Delta in Alaska. The environmental effects of permafrost melting make one shudder. It would ...

Add Yahoo as a preferred source to see more of our stories on Google. A deep crater in a grassy field. Eight giant, 160-foot-deep (50 meters) craters in the Siberian permafrost have baffled scientists ...

Parts of Siberia's landscape are a ticking time bomb. Giant craters started mysteriously appearing 10 years ago. A team of scientists think they finally know why. Tucked away in the frigid northern ...

Giant exploding craters only known to exist on Russia's permafrost-covered Yamal and Gydan peninsulas may result from a specific set of conditions not found elsewhere in the Arctic. When you purchase ...