At this year’s AGU Fall Meeting, three hybrid Deep Biosphere sessions – two oral and one poster – will be presented on Friday December 17. Conveners Beth Orcutt, James Bradley, Julie Huber, and Maggie Osburn are delighted to have many early career scientists in these sessions, sharing the latest-and-greatest from continental and marine subsurface investigations. Check the links to see who and what is being presented! I: Oral Session (B53B) Friday 17 Dec 13:45-15:00 CST (UTC-6); II: Oral Session (B54A) Friday 17 Dec 15:30-16:45 CST (UTC-6); and III: Poster Session (B55J) Friday 17 Dec 17:00-19:00 CST (UTC-6). Early bird registration ends November 3, 2021; regular rates are due afterward until the session December 17, 2021.