Near-perfect circles of gas emerged from Mount Etna in a rare display captured on camera on Saturday, 6 April. Volcanic ...
not only one ring every now and then, but she made dozens if not hundreds during a few hours, often in a row,” he explained. The post Alien Jellyfish, or Mt. Etna Just Blowing Smoke? appeared ...
The “volcanic vortex rings” are a rare phenomenon generated by the combination of rapid gas release and vent shape. Photo: Giuseppe Di Stefano/Associated Press ...