There's no shortage of nature, from massive lakes to a Lewis and Clark trail to national volcanic land, explore the national ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was ...

Scientists have discovered that shear forces inside rising magma can create gas bubbles long before pressure drops occur. The ...

From Vesuvius to Laki, we've seen some monstrous eruptions of volcanoes throughout history. Most of these volcanoes are ...

Deep beneath central China, geologists have mapped a 400 mile long arc of extinct volcanoes that no longer pierce the surface ...