(These tend to be shield volcanoes, so named for their relatively flat, broad profile. The Hawaiian Islands continue to be formed by this type of volcano.) It takes temperatures that are tens of ...

But why is this happening, and what can it teach us about Earth’s geology? Axial Seamount is a shield volcano, meaning it erupts in a way that spreads lava across a wide area rather than ...

Mount Etna in Sicily, Italy, is an example of a composite volcano. Shield volcanoes do not have such violent eruptions. These volcanoes tend to have gentle slopes and their runnier lava spreads ...

Mariner 9, the first spacecraft to orbit a planet other than Earth, travelled to Mars and returned images of the surface, including this one of a Martian shield volcano. The craft’s wide-angle ...

At a size equivalent to the state of New Mexico or British Isles, the underwater shield volcano known as Tamu Massif is the largest individual volcano ever documented on Earth, according to new ...

Deep below the Earth's surface, magma is churning and flowing into the Axial Seamount, an underwater shield volcano about 300 miles off the coast of Oregon. As the volcano grows and tremors ...