On the flip side, the ATV is also delivering a selection of Italian space food delicacies, including tiramisu, as part of the "crew choice" meal items picked out by Parmitano to share with his Expedition 36 and 37 crewmates.
Also aboard "Albert Einstein" is an empty toolbox and the tools destined to go inside it. The box, which was created using a 3D printer, was too fragile to launch with its tools pre-packed, so the astronauts will have a puzzle-of-sorts to assemble once it's on orbit.
ATV-4 will deliver spare parts for the station too, including a new water pump and recycling unit, a GPS antenna for Japan's Kibo laboratory module and new gas masks to be donned by the crew in the rare case of a fire. The cargo craft also carries water, oxygen and propellant for the ISS, the latter to be used to boost the outpost's orbit around the Earth.
"Albert Einstein" is the fourth out of five ESA Automated Transfer Vehicles. All were named after famous European science figures, including Jules Verne, Johannes Kepler, Edoardo Amaldi and Georges Lemaître.