As you are aware, scientific ocean drilling is half a century old this year, marked by the maiden voyage of the Glomar Challenger in 1968. Discoveries from scientific ocean drilling through the DSDP, ODP and IODP programs have helped reveal Earth’s history and have been critical to shaping our understanding of how our planet works. But although results from scientific ocean drilling have never have been stronger, addressing future challenges in the Earth sciences will require improved technologies that are not currently available on the JOIDES Resolution. The current phase of scientific ocean drilling will end after 2023, which is only five years away. At that same time the JOIDES Resolution will be 45 years old. In short, we are approaching a critical point with the current science plan expiring and the JOIDES Resolution in need of a replacement. Continuation of scientific ocean drilling beyond 2023 requires planning and action now. We are co-chairing the steering committee Instituting U.S. Scientific Ocean Drilling Beyond 2023 (SOD23+) to lead the U.S. planning for the post-2023 era in scientific ocean drilling and need broad input and support from the U.S. and international communities to consider the scientific plan and our future platform needs. In order to prepare the U.S. community for this critical time, we are organizing a two-day Workshop on May 6-7, 2019 in Denver that will bring together roughly 80-90 U.S.-IODP researchers and perhaps 20 international collaborators from non-U.S. IODP countries. Application window to the Denver3 Workshop opens January 28, 2019 and closes February 15, 2019.