Dear colleagues, We would like to invite you to submit an abstract to Goldschmidt 2026 for *Session 02e: Understanding the Deep Earth through the Elastic and Transport Properties of Its Constituent Materials*. This session highlights* recent experimental and theoretical advances in elastic and transport properties of mantle and core minerals and melts*, and how these results integrate with geophysical observations to improve models of Earth and planetary interior structure, dynamics, and evolution. We welcome contributions on *elasticity and transport properties (e.g., electrical/thermal conductivity, diffusivity, viscosity) of deep Earth and planetary materials.* *Session details: * https://conf.goldschmidt.info/goldschmidt/2026/meetingapp.cgi/Session/8729 *Abstract deadline: February 26, 2026* *Keynote speaker:* Prof. Jin Zhang (Texas A&M University) We look forward to seeing you in Montréal, Canada. Best regards, Rong Huang, Yoshiyuki Okuda, Biao Wang, Takashi Yoshino