The Gordon Research Seminar on Deep Carbon Science is a unique forum for graduate students, post-docs, and other scientists with comparable levels of experience and education to present and exchange new data and cutting edge ideas. The focus of this meeting is “Carbon at the Intersection of the Biosphere and Geosphere.” This GRS aims to bring together early-career scientists from traditionally non-intersecting fields to explore the sources, cycling, and geologic history of carbon on Earth and beyond. We particularly welcome abstracts describing multi-disciplinary approaches aiming to improve our understanding of carbon in the context of Earth’s interior, prebiotic building blocks and the evolution of life, geologic history, and the nature of carbon elsewhere in the solar system and beyond. Applications for this meeting must be submitted by May 30, 2020. Any applicants who wish to be considered for an oral presentation should submit their application by March 27, 2020.