Curated category
Volcanology
- VolcanoA vent in the crust of Earth allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Most volcanoes form where tectonic…
- Refractory (planetary science)In planetary science, any material that has a relatively high equilibrium condensation temperature is called refractory.
- Igneous rockIn 1546, the Swiss physician and mineralogist Georgius Agricola published a work titled De Natura Fossilium. This text contained one of the earliest…
- Volatile (astrogeology)In 1992, planetary scientists gathered to discuss the chemical makeup of distant moons. They focused on elements that vaporize easily compared to those that…
- EjectaThe 22nd of July 1980 marked a violent moment at Mount St. Helens when a massive plume of pyroclastic material rose into the sky.
- Global Volcanism ProgramSmithsonian reporting on current volcanic activity dates back to 1968. The Center for Short-Lived Phenomena began tracking these events that year.