Mount St. Helens -- What is a volcano? -- Layers of earth -- Kinds of volcanoes -- Eruptions -- Other dangers -- How volcanoes help -- From lava to land -- Dormant volcanoes -- Geothermal energy -- ...

Volcanoes are a powerful force of nature. There are about 1500 active volcanoes on our planet right now. A volcano is an opening in the Earth's crust that allows lava and other volcanic matter to ...

The US Geological Survey said it has detected an increase in seismic activity on Hawaii’s Big Island that is associated with unrest of the Kilauea volcano. The mountain is one of the most active ...

NASA scientists say the images provide far more than just a striking never-before-seen view of the Martian geography. Studying the features detailed in Odyssey's photos could help NASA prepare for ...

A new study of sapphires found in volcanic fields in Germany reveals that these beautiful blue stones form where magma and rocks from Earth's crust mix. When you purchase through links on our site, we ...