Volcanoes blow smoke rings. Here's how they do it.

These ghostly hoops have been spotted above volcanic events around the world. But how they form has long been a mystery.
Yahoo

Mount Etna eruption in images: See Europe's largest active volcano blow from different angles

When you buy through links on our articles, Future and its syndication partners may earn a commission. Mount Etna erupted with a massive plume of ash that rose above Catania in Sicily. | Credit: ...
Yahoo

Mount Etna volcanic eruption: Is it safe to travel to Sicily and are flights cancelled?

Mount Etna, the tallest and most active volcano in Europe, erupted on Monday on the Italian island of Sicily. Dramatic video footage shared on social media showed tourists fleeing down the side of the ...
KSL

Huge eruption on Italy's Mount Etna leaves tourists fleeing volcano

CATANIA, Italy — A massive eruption at Mount Etna forced tourists to flee the volcano on Monday after a plume of high-temperature gases, ash and rock "several kilometers high" billowed into the air ...
WCVB Channel 5 Boston

VIDEO: Italy’s Mount Etna erupts, sending huge plume of ash and rock into air

A massive eruption at Mount Etna forced tourists to flee the volcano on Monday after a plume of high temperature gases, ash and rock “several kilometers high” billowed into the air above them, Italian ...