In short: Volcanic vortex rings have formed above Mount Etna in Italy. Volcanologist Ana Casas Ramos says the rings are made of condensed water which forms when hot vapour from the volcano hits cold ...

STORY: Volcanic vortex rings are natural, near-perfect circles of gas emitted from a volcano under specific conditions and scientists say Mount Etna emits more than any other volcano on earth. It is a ...

Add Yahoo as a preferred source to see more of our stories on Google. Volcanic vortex rings emerge from a new pit crater on the north side of the southeast crater of Mount Etna in Sicily Mount Etna, ...

VOLCANO VORTEX RINGS: Rare volcanic vortex rings were spotted rising above Mount Etna in Italy recently. The natural phenomenon occurs when gases emitted from the volcano ascend rapidly through the ...

Mount Etna in Sicily has been blowing spectacular ‘smoke rings’ into the sky since Wednesday. The volcano, which towers over the historic port city of Catania, is the largest in Europe and one of the ...

Volatile volcano Mount Etna has been blowing perfect 'smoke' rings into Sicily's blue skies. The volcano erupted violently on November 11 and since then has produced regular explosions, as well as ...

Images shows striking and very rare smoke rings drifting up into the blue sky from Europe largest active volcano. Tourists caught the moment Mount Etna in Sicily, Italy blew rare volcanic vortex rings ...

A rare spectacle appeared in the sky over Sicily’s Mount Etna recently, as huge smoky vortex rings were spotted rising above the massive volcano. The largest volcano currently active in Europe, Mount ...

Add Yahoo as a preferred source to see more of our stories on Google. What are volcanic vortex rings? Mount Etna blows spectacular ‘smoke rings’ into the sky Mount Etna in Sicily has been blowing ...