Dear Deep Earth Community, We encourage you to submit a session to Goldschmidt 2025 taking place July 6-11 in Prague, Czech Republic. Theme 2 "Chemistry and Dynamics of Earth's Interior" covers all aspects of planetary processes from core segregation to today. We look forward to your contributions that encourage dialog and progress in understanding our dynamic planet. Deadline October 15 Visit the Goldschmidt 2025 website to submit a session proposal. https://urldefense.us/v3/__https://conf.goldschmidt.info/goldschmidt/2025/me... Theme 2 Description: The interior of the Earth comprises most of our planet, and shapes its long-term evolution and present-day surface conditions. By integrating the finds from various fields of study, such as geochemistry, geodynamics, geophysics, petrology, and mineral physics-be it through experiments, observations, or theories-we gain profound insights into the inner workings of our planet and its dynamic interaction with the surface across space and time. In this theme, we encourage disciplinary and interdisciplinary session proposals on the chemical and physical processes occurring in the Earth's interior across all scales of time and space, the nature of material and energy exchange between the interior and surface, insights into deep reservoirs including the upper mantle, transition zone, lower mantle, outer and inner core, as well as interactions between the crust, mantle and core and their evolution over time. On behalf of the Theme 2 Chairs, Raúl O.C. Fonseca Ruhr-University Bochum Christine Houser Tokyo Institute of Technology Yanbin Wang The University of Chicago