The most volcanic world in our solar system has sprouted a new volcano. And its lava flows are enormous. Jupiter's molten moon Io has been surveyed by a number of passing spacecraft, allowing ...

Jupiter's moon Io, a world teeming with volcanoes. The most volcanic world in our solar system has sprouted a new volcano. And its lava flows are enormous. Jupiter's molten moon Io has been surveyed ...

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 ...

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 ...

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Bright red lava shot into the air from what appeared to be a new volcanic cone in eastern Congo Saturday, sending a new wave of molten rock into the devastated center of Goma, slicing the city in half ...