Advances in high-resolution electron microscopy (HREM) have enabled remarkable discoveries related to the space environment, planetary surface processes, and the origin and evolution of our solar system. As new lunar samples become available and as samples from novel locations are delivered by current and future exploration programs, HREM will play an increasingly critical role in comparative planetology and in broadening our understanding of fundamental solar system processes. This session solicits abstracts related to high-resolution electron microscopy (FIB, SEM, STEM/TEM, and EBSD) of planetary materials and terrestrial analogs. The purpose of the session is to discuss new results that enhance our understanding of the solar system and to provoke discussion about innovative techniques and applications in electron microscopy.