New research clears up a longstanding question about explosive volcanic eruptions like the ones at Mount St. Helens in 1980.

Earth's magnetic field locks information into lava as it cools into rock. Millions of years later, scientists can decipher this magnetic data to build geologic timelines and maps.

There may be a way for scientists to predict when volcanoes will erupt by closely monitoring pressure changes, researchers say.

The molten rock that feeds volcanoes can be stored in the Earth’s crust for as long as a thousand years, a result which may help with volcanic hazard management and better forecasting of when eruptions might occur.

A new model helps "assess whether similar lava tubes on the moon or Mars would be capable of hosting a permanent human habitat."

"Understanding basic processes having to do with volcanoes will ultimately help us make better forecasting calls when it comes to eruptions."