Mount Etna's spectacular eruption on Monday, which caused a partial collapse of the volcano's crater, prompted a local volcanologist who witnessed the eruption to warn future visitors to the ...

Mount Etna's spectacular eruption on Monday, which caused a partial collapse of the volcano's crater, prompted a local volcanologist who witnessed the eruption to warn future visitors to the ...

Mount Etna's eruption, captured by the European Space Agency's (ESA) Copernicus Sentinel-5P satellite, revealed massive plumes of ash and smoke, as lava streaked down the side of the volcano.