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 ...

Europe's most active volcano, Mount Etna, is blowing scores of ethereal "vortex rings" every day from a single vent located in one of its most active craters. On July 23, Boris Behncke, a ...

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 ...

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, ...

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 ...

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 ...

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 ...

Watch: Italy’s Mount Etna Blows Rare ‘Vortex Rings’ Into Sky The “volcanic vortex rings” are a rare phenomenon generated by the combination of rapid gas release and vent shape. Photo: Giuseppe Di ...

Mount Etna erupted on Monday on the Italian island of Sicily, spewing ash and lava into the air, Italy's volcano monitoring ...

Observations of volcanic vortex rings have been reported at a number of volcanoes over the past several hundred years. The most recent rings emerging from Etna were first spotted last Wednesday.

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