#AGU21 is the leading forum for advancing Earth and space science and leveraging this research toward solutions for societal challenges. Submit an abstract (or two now) to #AGU21 to contribute to these goals and to share your science in-person (New Orleans, LA) and online with >25,000 attendees from 100+ countries representing the global Earth and space sciences community. Most sessions will be recorded and available to this global community of researchers, scientists, educators, students, policymakers, partners, science enthusiasts, journalists and communicators. Abstracts should focus on new scientific results, enabling Earth and space science or its application, and/or the contribution of Earth and space science to society. Submit your deep biosphere abstract to Session B037 – Geomicrobiology of the Deep Biosphere convened by Beth Orcutt, Maggie Osburn, James Bradley, and Julie Huber; or to Session P034 – Tapping the Rhythms of Potential Life on Extraterrestrial Planets and Moons convened by Chui Yim Maggie Lau Vetter, Frederick S. Colwell, and Rosalyn Fey. Abstracts due August 4, 2021.