Four components of the Mercury Composite Spacecraft in the 'Rosetta' cleanroom
The four components of the Mercury Composite Spacecraft (MCS) together for the first time in the 'Rosetta' cleanroom at ESA's European Space Research and Technology Centre in Noordwijk, the Netherlands on 14 November 2011.
Front right, on its ground multi-purpose trolley – the Mercury Planetary Orbiter (MPO) Structural and Thermal Model.
Front left, on its handling trolley – the Mercury Magnetospheric Orbiter (MMO) Structural Model.
Rear left, on its ground multi-purpose trolley – the Mercury Transfer Module (MTM) Structural and Thermal Model.
Rear right – Magnetospheric Orbiter Sunshade and Interface Structure (MOSIF) Proto-Flight Model, in two parts – the sunshade (left, on the floor) and the interface adapter (right, on the vertical integration stand).