A volcano in southern Iran thought to have been extinct for some 710,000 years has stirred. New research published Oct. 7 in ...

Some volcanoes, such as the Cascade volcanoes up in Washington and Oregon, are of the type called a stratovolcano. These steep volcanoes sometimes erupt explosively and other times have calmer lava ...

Lava is molten rock from a volcano that reaches the Earth’s surface. Liquid rock below the Earth’s surface is referred to as magma. More than 50% of the world’s active volcanoes above sea level ...

The Hawaiian Islands are a chain of volcanoes formed over millions of years. They've developed as the Pacific Plate — one of more than a dozen tectonic plates on the earth's outer layer — slowly moves ...

The flowing of molten rocks through small cracks in the heart of volcanoes may have been a perfect environment to forge the building blocks of life on Earth. These chemicals—called biopolymers—are an ...

India's unique mud volcano at Baratang has erupted after more than 20 years, creating an earth mound and spreading muddy soil ...

The far side of the moon is hiding evidence of an enormous ancient volcano. But even though researchers are sure the volcano was there, they remain mystified about how it could have formed. For more ...