Rationale for BepiColombo Studies of Mercury’s Surface and Composition

David A. Rothery*, Matteo Massironi, Giulia Alemanno, Océane Barraud, Sebastien Besse, Nicolas Bott, Rosario Brunetto, Emma Bunce, Paul Byrne, Fabrizio Capaccioni, Maria Teresa Capria, Cristian Carli, Bernard Charlier, Thomas Cornet, Gabriele Cremonese, Mario D’Amore, M. Cristina De Sanctis, Alain Doressoundiram, Luigi Ferranti, Gianrico FilacchioneValentina Galluzzi, Lorenza Giacomini, Manuel Grande, Laura G. Guzzetta, Jörn Helbert, Daniel Heyner, Harald Hiesinger, Hauke Hussmann, Ryuku Hyodo, Tomas Kohout, Alexander Kozyrev, Maxim Litvak, Alice Lucchetti, Alexey Malakhov, Christopher Malliband, Paolo Mancinelli, Julia Martikainen, Adrian Martindale, Alessandro Maturilli, Anna Milillo, Igor Mitrofanov, Maxim Mokrousov, Andreas Morlok, Karri Muinonen, Olivier Namur, Alan Owens, Larry R. Nittler, Joana S. Oliveira, Pasquale Palumbo, Maurizio Pajola, David L. Pegg, Antti Penttilä, Romolo Politi, Francesco Quarati, Cristina Re, Anton Sanin, Rita Schulz, Claudia Stangarone, Aleksandra Stojic, Vladislav Tretiyakov, Timo Väisänen, Indhu Varatharajan, Iris Weber, Jack Wright, Peter Wurz, Francesca Zambon

*Corresponding author for this work

Research output: Contribution to journalReview Articlepeer-review

50 Citations (Scopus)
107 Downloads (Pure)


BepiColombo has a larger and in many ways more capable suite of instruments relevant for determination of the topographic, physical, chemical and mineralogical properties of Mercury’s surface than the suite carried by NASA’s MESSENGER spacecraft. Moreover, BepiColombo’s data rate is substantially higher. This equips it to confirm, elaborate upon, and go beyond many of MESSENGER’s remarkable achievements. Furthermore, the geometry of BepiColombo’s orbital science campaign, beginning in 2026, will enable it to make uniformly resolved observations of both northern and southern hemispheres. This will offer more detailed and complete imaging and topographic mapping, element mapping with better sensitivity and improved spatial resolution, and totally new mineralogical mapping. We discuss MESSENGER data in the context of preparing for BepiColombo, and describe the contributions that we expect BepiColombo to make towards increased knowledge and understanding of Mercury’s surface and its composition. Much current work, including analysis of analogue materials, is directed towards better preparing ourselves to understand what BepiColombo might reveal. Some of MESSENGER’s more remarkable observations were obtained under unique or extreme conditions. BepiColombo should be able to confirm the validity of these observations and reveal the extent to which they are representative of the planet as a whole. It will also make new observations to clarify geological processes governing and reflecting crustal origin and evolution. We anticipate that the insights gained into Mercury’s geological history and its current space weathering environment will enable us to better understand the relationships of surface chemistry, morphologies and structures with the composition of crustal types, including the nature and mobility of volatile species. This will enable estimation of the composition of the mantle from which the crust was derived, and lead to tighter constraints on models for Mercury’s origin including the nature and original heliocentric distance of the material from which it formed.

Original languageEnglish
Article number66
Number of pages46
JournalSpace Science Reviews
Issue number4
Publication statusPublished - 02 Jun 2020


  • BepiColombo
  • Crust
  • Mercury
  • Tectonism
  • Volatiles
  • Volcanism


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