Mercury's regolith, derived from the crustal bedrock, has been altered by a set of space
weathering processes. Before we can interpret crustal composition, it is necessary to …

Abstract The Moon and Mercury both have permanently shaded regions (PSRs) at their
poles, which are locations that do not see the Sun for geologically long periods of time. The …

We have mapped the major-element composition of Mercury's surface from orbital
MESSENGER X-Ray Spectrometer measurements. These maps constitute the first global …

Chemical data from the MESSENGER spacecraft revealed that surface rocks on Mercury are
unusually enriched in sulfur compared to samples from other terrestrial planets. In order to …

Mercury's global surface is markedly darker than predicted from its measured elemental
composition. The darkening agent, which has not been previously identified, is most …

The range in density and compressibility of Mercurian melt compositions was determined to
better understand the products of a possible Mercurian magma ocean and subsequent …

For nearly 40 yr, studies of exosphere formation on airless bodies have been hindered by
uncertainties in our understanding of the underlying ion collisional sputtering by the solar …

Orbital data from the MESSENGER mission to Mercury have facilitated a new view of the
planet's structure, chemical makeup, and diverse surface, and have confirmed Mercury's …

NASA's MESSENGER spacecraft has revealed geochemical diversity across Mercury's
volcanic crust. Near-infrared to ultraviolet spectra and images have provided evidence for …

The MESSENGER spacecraft provided geochemical data for surface rocks on Mercury. In
this study, we use the major element composition of these lavas to constrain melting …