Add Yahoo as a preferred source to see more of our stories on Google. STORY: Volcanic vortex rings are natural, near-perfect circles of gas emitted from a volcano under specific conditions and ...

Add Yahoo as a preferred source to see more of our stories on Google. STORY: Scientists say that Mount Etna emits more of these rings than any other volcano on Earth, making the event particularly ...

Tourists in Italy have been treated to quite the show as Mount Etna, the largest active volcano in Europe, has been blowing spectacular “smoke rings” into the sky since last week. The rare phenomenon, ...

The volcano, one of Europe’s most active, has been spewing volcanic vortex rings at a rapid pace. But that doesn’t mean a big explosion is on the way, one expert says. By Elisabetta Povoledo Reported ...

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 ...

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, Italy has been drawing attention over the last week as what appear to be “volcanic smoke rings” rise over the island volcano. Locals have reported seeing these rings since April ...

Mount Etna, Europe’s largest active volcano, puffed out a string of near-perfect rings over the weekend — prompting comparisons to smoke rings, or a fleet of giant flying saucers floating gently into ...

Mount Etna in Sicily, the largest active volcano in Europe, has been blowing spectacular “smoke rings” into the sky since Wednesday. The "volcanic vortex rings", a rare phenomenon that is generated by ...

Italy's Mount Etna captivated visitors on April 5 with volcanic vortex rings, a rare phenomenon of near-perfect circles of gas emitted from the volcano.

A rare event was caught on camera over the weekend at Italy's Mount Etna, the most active stratovolcano in the world. The Sicilian volcano was seen spewing rare and nearly perfectly circular volcanic ...

Tourists in Italy have been treated to quite the show as Mount Etna, the largest active volcano in Europe, has been blowing spectacular "smoke rings" into the sky since last week. The rare phenomenon, ...