A Look At Mount St. Helens 35 Years After Its Historic Eruption

This satellite image of Washington’s Mount St. Helens comes courtesy of NASA’s Earth Observatory, which notes that tomorrow is the 35th anniversary of the volcano’s eruption and subsequent landslide, which killed 57 people. Scientists still keep a close watch on the site from both the air and ground. » 5/17/15 4:30pm 5/17/15 4:30pm

A major step to predicting when supervolcanoes will explode

Scientists have learned that massive caldera volcanoes, like the one stewing beneath Yellowstone, are ruled by geological processes far different than the ones governing conventional volcanoes. These massive reservoirs of magma can explode spontaneously — an important piece of insight that can help us predict a future… » 1/06/14 2:20pm 1/06/14 2:20pm