Volcanoes can look like small mountains or hills. A volcano is an opening in the Earth's crust that allows magma, hot ash and gases to escape. Composite volcanoes are the most common type of volcano.

In 1959, a KGB major looks into the mysterious deaths of a group of nine student hikers in the Ural Mountains. In 1959, after a group of nine student hikers are found dead in the Ural Mountains ...

Russia's weather service acknowledged it had measured pollution of ruthenium-106 at 1,000 times normal levels in the Ural mountains. It said there was no health risk. The announcement appeared to ...