What’s inside Mexico’s Popocatépetl? Scientists obtain first 3D images of the whole volcano

Popocatépetl emerged in the crater of other volcanoes in its current form more than 20,000 years ago and has been active ...
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The Sound So Loud It Circled Earth Four Times—But Where Did It Come From?

The most dangerous volcanoes in the world can be deadly, but they rarely muster up the sheer sound that could burst eardrums. This one did, though. On 27 August 1883, a volcano named Krakatoa, nestled ...