Dear Colleagues! We are excited to announce ExPet26 – a meeting designed to bring experimental petrologists together from across the United States and worldwide to highlight recent scientific and technological advances, discuss mechanisms for sharing information, ideas, technology, methodologies and equipment, and to develop and safeguard our community for the future. The inaugural meeting, which we hope will be the first of many to come on a biennial basis, will be held in Washington, DC at the Earth and Planets Laboratory, Carnegie Institution for Science, from October 14-16, 2026. The meeting will have a maximum of 80 in-person attendees but will also be broadcast in a hybrid format. We encourage international participation online and have structured the schedule with science sessions concentrated in the morning (US Eastern Time) to accommodate participants across multiple time zones. Registration will be free, and limited travel and accommodation support will be available to in-person participants. Our goals are to: (1) Engage the community and foster collaborations; (2) Improve scientific standards by sharing our common experimental designs, methodologies, calibrations, and techniques; (3) Facilitate access to experimental petrology labs in the country; (4) Define the future of the community in the U.S. by identifying the needs for development in experimental petrology. We are pleased to announce the confirmed invited speakers: Fred Davis (University of Minnesota, Duluth), Damanveer Grewal (Yale), Alex Gysi (New Mexico Tech), Megan Holycross (Cornell), Sarah Lambart (University of Utah), Kevin Righter (Rochester). To learn more about the workshop, the vision, or to apply to attend, please check out our website: https://www.expet26.com/. Registration deadline July 1st, 2026. ExPet26 is supported by the U.S. National Science Foundation. Thanks for your consideration! The ExPet26 Organizing Committee