Cores are among the largest chemical reservoirs within terrestrial planets, major contributors to mantle dynamics through their long-term cooling, and in many cases engines that generate magnetic fields permeating the entire planetary system. Despite this fundamental importance, key aspects of Earth and planetary cores remain enigmatic, leaving major questions about their thermal, chemical, magnetic, and dynamical behavior unresolved.  This session highlights recent advances in the observations, properties, and dynamics of terrestrial planetary cores, including the Earth, with a particular emphasis on interdisciplinary approaches. We welcome contributions spanning seismology, mineral physics, geochemistry, dynamo theory, (paleo)magnetism, geodesy, rotational dynamics, and related fields. Our goal is to stimulate discussion across communities on how emerging insights into the origin and behavior of terrestrial cores can reshape our understanding of planetary interiors and their coupled systems, and planetary evolution as a whole.

• GP - Geomagnetism, Paleomagnetism and Electromagnetism
• MR - Mineral and Rock Physics
• P - Planetary Sciences
• S - Seismology