A schoolgirl was stunned when she looked into the sky to see this enormous unexplained black ring. Georgina Heap, 16, was playing tennis with mum 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 near Leamington Spa on Friday evening, has stumped officials.