The Ariane 5 is the evolution of a family of rocket launchers that started when Europe's space industry was in its infancy. This massive launch vehicle, is built all over Europe but assembled here in the Cathedral at the Arianegroup construction site at Les Mureaux. It is a design that has successfully completed 85 launch missions in the last quarter of a century; it is due to be replaced by the more versatile and competitive Ariane 6 within the next 2 years.