Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and upper mantle that fit together like puzzle pieces. Think of these plates as massive rafts floating ...
Take one 55-gallon drum of water, one two-liter soda bottle full of liquid nitrogen, put them together and you get -- BOOM! Literally. That's how Augustana College professor Mike Wolf demonstrated to ...
Boulder, Colo., USA: What appears to be a single volcanic eruption is often the result of complex processes operating deep beneath the surface, where magma moves, evolves, and changes over long ...
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