ATV-3's booster rolled out

One of two solid-propellant boosters for the Ariane 5 ES that will carry the ATV-3 being transported to the Launcher Integration Building at Europe's Spaceport in Kourou.

CREDIT
ESA, Arianespace, Optique Video du CSG, J.M. Guillon
LICENCE
ESA Standard Licence

Space Transportation Space Engineering
Automated Transfer Vehicle (ATV)
Launchers and space vehicles ESA Places Spacecraft engineering Ariane-5 Europe's Spaceport