Black smoke rings appear over Dalian, Liaoning, China, undated. It was only tens of meters above the ground. (97173221/AsiaWire) Mysterious Black Circle Hovering In The Sky Sparks UFO Debates Post author:Michael Leidig Post published:August 23, 2023 Post category:Video Post comments:0 Comments Continue ReadingMysterious Black Circle Hovering In The Sky Sparks UFO Debates