This is bizarre. A 16-year-old girl saw a giant black ring in the sky above England and captured it on video. After three minutes of floating around like a cloud, the black ring disappeared completely. So far, experts have no idea what it was. »4/14/14 9:00pm 4/14/14 9:00pm
U.S. Marine Corps Corporal James Sauter captured the precise moment when a 120-mm mortar makes a fiery smoke ring in the sky during a training session for Operation Spartan Fury. »1/24/13 10:11am 1/24/13 10:11am
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