Bruce Murray Space Image LibraryMercury's gravity field and crustal thickness from MESSENGER Mercury's gravity field and crustal thickness from MESSENGER Mollweide (left, 0°E in center) and north polar (right) projections of free-air gravity anomalies (top, in mGal) and crustal thickness (bottom, in km) derived from the most recent gravity field solution, HgM008. From an abstract (#6027) presented to the 2018 "Mercury: Current and Future Science of the Innermost Planet" meeting. Figure from Genova A, S. Goossens, E. Mazarico, F. G. Lemoine, G. A. Neumann, W. Kuang, T. J. Sabaka, S. A. Hauck, II, D. E. Smith, S. C. Solomon, M. T. Zuber (2018). Geodetic Evidence of Solid Inner Core at Mercury. Submitted.