Subject: Invitation to submit abstracts to AGU session G005 - Grand Challenges for Geodetic Science and Engineering in 21st-Century Society From: Carabajal, Claudia C. (GSFC-61A.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] Dear Colleagues, We invite you to submit an abstract to our following AGU session, which will be held in San Francisco, California, from 7–11 December 2026: G005 - Grand Challenges for Geodetic Science and Engineering in 21st-Century Society Session Description: Geodesy is foundational to modern geospatial science and technology, underpinning applications from Earth and space exploration to climate resilience, navigation, communications, and global security. Emerging demands such as autonomous systems, digital twins, infrastructure, and AI-driven Earth observation, are expanding the scope of problems that require a solid foundation in geodetic science. This session invites abstracts that articulate key scientific and engineering problems whose solutions would most significantly advance geodesy and its contributions to society. We welcome submissions that frame open research questions, postulate new research areas, present industry needs, inform priority curriculum, and propose new sensors and satellite missions. Topics may include reference frame realization and maintenance, next-generation GNSS and InSAR applications, Earth and lunar monitoring, and national security issues. We encourage contributions examining how academic programs, government agencies, and industry can align training, funding, and collaboration strategies to ensure these problems are addressed by a skilled and growing workforce. Abstract Submission Link: https://agu.confex.com/agu/agu26/prelim.cgi/Session/282100 Conveners: Jeremy Maurer, Missouri University of Science and Technology Benjamin R Phillips, South Summit Science LLC Donna J Charlevoix, EarthScope Consortium Linda Foster ESRI Stephen Merkowitz, NASA Goddard Space Flight Center Index Terms: 1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere interactions 1225 Global change from geodesy 1240 Satellite geodesy: results 1241 Satellite geodesy: technical issues The abstract submission deadline is 5 August 2026. Regards, Claudia, ILRS CB Secretary [cid:image001.png@01DB8E97.5E4A11C0] Claudia C. Carabajal Research Scientist SME HBG Geodesy & Geophysics Group Lead Secretary, ILRS Central Bureau Geodesy and Geophysics Laboratory, 61A NASA Goddard Space Flight Center 8800 Greenbelt Rd., Greenbelt, MD 20770 Claudia.C.Carabajal@nasa.gov