A teen in Warwickshire, England, was stunned when when she looked into the sky to see an enormous unexplained black ring. Sixteen-year-old Georgina Heap was playing tennis with her mom Jo when she was stopped in her tracks by the fascinating sight. Gazing into the sky, the pair saw a clearly defined black circle which looked like a giant smoke ring. The ring remained there for around three minutes before disappearing completely. The spectacle, which took place Friday evening, has stumped officials