Impacts are key drivers of planetary interior evolution, capable of reorganizing the structure, composition, and dynamics of Earth and other terrestrial bodies from their earliest histories onward. From planetary accretion and core formation to mantle mixing and metal-silicate equilibration, collisions can leave lasting imprints on planetary interiors. Their influence may extend beyond the immediate aftermath of collision, shaping the thermal, geodynamic, and chemical evolution of planets and impact-generated moons. This session invites contributions spanning geodynamic modeling, geochemical analyses, geophysical observations, and experimental and computational simulations to explore how impacts initiate, modify, or redirect interior evolution across terrestrial planets, moons, and differentiated planetesimals. By comparing processes across bodies, we aim to foster cross-disciplinary perspectives on new links between planetary impacts and long-term planetary evolution.

• MR - Mineral and Rock Physics
• NG - Nonlinear Geophysics
• P - Planetary Sciences
• V - Volcanology, Geochemistry and Petrology