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00925njm 22002777a 4500 dc Bost, N. author Ramboz, C. author LeBreton, N. author Foucher, F. author López Reyes, Guillermo Eduardo author Angelis, S. de author Josset, M. author Josset, J.L. author Souchon, A. author Ammannito, E. author Sanctis, M.C. de author Di Iorio, T. author Carli, C. author Westall, F. author Vago, Jorge L. author Sanz Arranz, José Aurelio author Venegas, Gloria author Rull Pérez, Fernando author Medina García, Jesús author 2015 The future ExoMars rover mission (ESA/Roscosmos), to be launched in 2018, will investigate the habitability of the Martian surface and near subsurface, and search for traces of past life in the form of textural biosignatures and organic molecules. In support of this mission, a selection of relevant Mars analogue materials has been characterised and stored in the International Space Analogue Rockstore (ISAR), hosted in Orléans, France. Two ISAR samples were analysed by prototypes of the ExoMars rover instruments used for petrographic study. The objective was to determine whether a full interpretation of the rocks could be achieved on the basis of the data obtained by the ExoMars visible-IR imager and spectrometer (MicrOmega), the close-up imager (CLUPI), the drill infrared spectrometer (Ma_Miss) and the Raman spectrometer (RLS), first separately then in their entirety. In order to not influence the initial instrumental interpretation, the samples were sent to the different teams without any additional Planetary and Space Science 108 (2015) 87–97 http://uvadoc.uva.es/handle/10324/23005 Testing the ability of the ExoMars 2018 payload to document geological context and potential habitability on Mars