An Ariane rocket final booster stage, or EPS, being integrated at Europe’s Spaceport, Kourou, French Guiana.
This booster will propel ESA’s space ferry ATV Albert Einstein towards a rendezvous with the International Space Station bringing over 6500 kg of supplies to the orbital outpost.
ATV-4 will be launched on board Ariane 5 flight VA213 in 2013.