Exploring Italy s Aeolian Islands, where fire meets water yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
Mount Etna, one of the most active volcanoes in the world, is known for this phenomenon. Here is how it is formed. Also, do the rings mean the volcano is about to erupt? Read on.
Mt Etna s vortex rings sott.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sott.net Daily Mail and Mail on Sunday newspapers.