A screengrab from the animation showing the rise and fall of the slopes of Mount Etna as its magma chamber expands and retracts between 1992 and 2001. Mount Etna seems to breathe in a NASA animation ...
These ghostly hoops have been spotted above volcanic events around the world. But how they form has long been a mystery. Mount Etna—located in Catania, Italy—is one of the rare volcanoes that can blow ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Image was taken by William F. Foshag, ...