Earth
Why Volcanoes Erupt and How Scientists Forecast Eruptions
Kilauea pours out glowing lava while Mount St. Helens blew its top off. The difference comes down to gas and how sticky the magma is.
Tag: volcanoes
Earth
What Is a Supervolcano? Yellowstone, Toba and the Real Odds
Supervolcanoes leave holes tens of kilometers wide, but their giant eruptions are rare. Here is what the term means, where they are and what Yellowstone is more likely to do next.