I was out side having a smoke and looking at the night sky,,,,,we live in the countryside in northern ireland and have a clear view of the stars and sky...I was watching a jet liner in the sky,,,red and green flashing from the aircraft,,,,,then i noticed a bright light high above the airliner moving in the opposite direction,,,,,,it was faster than the aircraft maybe doing x3 the speed of the plane,,,,,,,it slowed down,,,,,it had the shape of a triangle ,,,very bright,,,,,,it then gained some speed,,,,,,nothing super sonic,,,and stopped,,,,,i called my wife out to watch,,,,,we watched the object for about another minute and it moved a little and seem to go up and blink out.....