The Solar System encompasses planetary bodies with substantially different compositions, structures, and evolutionary histories. The discovery of more than 6000 exoplanets has further expanded this diversity. Understanding the physical and chemical response of planetary materials is therefore essential for reconstructing planetary formation and long-term evolution and, ultimately, assessing the conditions that shape planetary habitability.
Planetary materials experience conditions ranging from the cold surfaces to hot magma oceans and the extreme pressures of super-Earth interiors. No single approach spans this full range. We therefore invite work that brings experiments, calculations, natural sample analysis, and planetary observations into dialogue.
This session aims to connect material-scale processes and properties with planetary-scale questions, including the origin of compositional diversity, planetary differentiation, and subsequent thermal and chemical evolution. We welcome studies on crystallization and melting; magma degassing and volatile storage; chemical partitioning; and structural and transport properties of planetary materials. Contributions may span terrestrial planets and icy moons in the Solar System, as well as exoplanets such as super-Earths and large water-rich worlds.