appeared as bright silver globe with huge 'comet' trail...obesrved with binoculors, changed colour to bright blue, sudden waver in tragectory, seemed to sping on axis...resumed straight path, suddenly vanishing at high speedAs above, Witnessed by three adults ( two of us 'doubting' scientists. Quite the most unusual and spectacular night-sky phenomenon ever seen by us. The object was very distant ( possibly outside the atmosphere ), must have been travelling at very high speed, and the core of considerable mass.The final episode looked like a distinct 'wobble' and curve or loop in 'flight' Total viewing time about 5 minutes. Location Buckfast in South Devon UK. Perfect viewing conditions.