OPS4

Dwarf planets and outer Solar System moons display a wide range of geological and geophysical characteristics, reflecting the interaction between internal evolution and surface processes over geological timescales. Their present-day properties are shaped by coupled mechanisms including tectonics, resurfacing, impact cratering, cryovolcanism, volatile processing, and the long-term evolution of their crusts and possible subsurface oceans.

This session focuses on the structure, dynamics, and evolution of these bodies, from surface to deep interior. We welcome contributions based on remote sensing, geological and geomorphological mapping, structural and tectonic analyses, stratigraphy, gravity and geophysical investigations, numerical and theoretical modelling, laboratory experiments, and comparative planetology. Studies addressing links between surface expression and internal processes, as well as long-term evolutionary pathways, are particularly encouraged.

Relevant targets include Io, Europa, Ganymede, Callisto, Enceladus, Titan, Triton, Pluto, and other outer Solar System moons and dwarf planets. Contributions based on data from past and ongoing missions, as well as studies supporting future exploration by Europa Clipper, JUICE, Dragonfly, and other upcoming missions, are strongly encouraged.