What's inside Mexico's Popocatepetl volcano? Scientists obtain first 3D images

In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatepetl volcano, one of the world ...

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

In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world’s most ...