The BepiColombo stack seen on its vertical integration stand in ESA's test centre, in May 2017.
From bottom to top: the Mercury Transfer Module (MTM), with one folded solar array including protective cover visible in the front; the Mercury Planetary Orbiter (MPO), with its folded solar array including a protective cover visible to the right; and the Mercury Magnetospheric Orbiter (MMO), with its deployable high-gain antenna (the white dish) visible on top.
In the background, to the right, stands the Mercury Magnetospheric Orbiter's Sunshield and Interface Structure (MOSIF). MOSIF will shield the MMO from the Sun during the journey to Mercury and provide the mechanical and electrical interfaces between the MMO and the MPO.
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