Dear colleagues, If you are investigating the secrets of the deep Earth, the interiors of planets in our solar system or even distant exoplanets in your research, we invite you to submit an abstract to our session: *GMPV8.2: "From Earth to Exoplanets: Exploring deep planetary interiors through advances in modelling and experiments" * at the EGU General Assembly 2026 (3rd to 8th May 2026) in Vienna! We are excited to announce a new inter-disciplinary session on exploring the frontiers of deep planetary science using cutting-edge experimental and modelling techniques; we aim to capitalise on current advances in high-pressure planetary research such as XFELs, computational developments and observations through the James Webb telescope to predict the properties of matter at depth and link them to observable planetary parameters such as seismic velocities, mass–radius relationships, or interior dynamics. We encourage submissions that utilise diverse approaches, such as innovative synchrotron and XFEL techniques as well as cutting edge modelling, to advance our understanding of planetary materials and processes under extreme conditions. We particularly welcome studies addressing mineral physics properties, interior structure and dynamics, and the chemical and physical evolution of planetary interiors. Abstract submission is open until *January 15, 2026, **13:00 CET*. For more information, please visit: https://meetingorganizer.copernicus.org/EGU26/sessionprogramme/5865 Feel free to share this information and do not hesitate to reach out to us if you have any questions about the session! Looking forward to seeing you in Vienna! Lélia Libon, Amrita Chakraborti, Clemens Prescher, and Renaud Deguen