Akin to the Earth’s, the lunar surface is covered by a regolith of clastic particles; yet, the processes that impact these particles is quite distinct. To better understand the potential character of the lunar surface and its impact on spacecraft, Rickman et al. describe results aimed at characterizing shape, a fundamental (yet poorly constrained) descriptive attribute of simulants of these particles. The results illustrate a range of techniques that will be useful for systematically describing lunar samples, when they become available.
Particle shape in simulants of the lunar regolith by Doug Rickman, Christopher Immer, Philip Metzger, Emily Dixon, Matthew Pendleton, and Jennifer Edmunson