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Ocean sciences in the U.S. remains a field with one of the lowest rates of diversity, having disproportionately low representation from marginalized groups, including Black, Asian, LatinX, Indigenous, and other people of color; LGBTQIA+ individuals; disabled persons; women; those with neurological differences; and those from low-income groups. With equity and inclusion in mind, recent efforts have been made to increase the number of ocean science professionals from marginalized groups through multiple entry points, including internships. However, there still exists a large gap between the diversity found in the general population and the diversity within ocean sciences. Perhaps one reason why this field continues to have lower diversity owes to the unique component of many oceanographic careers, which continues to present an especially high barrier for marginalized groups: participating in sea-going research expeditions. Herein, we have synthesized possible ways to prioritize the physical and emotional safety of marginalized ocean science professionals participating in a research expedition, including guidance on preparation, implementation, and providing support post-cruise. These suggestions are intended to be useful for the broader oceanographic research community to consider the safety and well-being of individuals from marginalized groups at sea, since the field of ocean sciences - like all fields - would greatly benefit from increased representation and diversity.

In 2022, E/V Nautilus successfully completed an eight-month field season consisting of 11 expeditions that explored the Central Pacific Ocean for a total of 202 days at sea. The ship's field season began with a shakedown cruise around the Main Hawaiian Islands. It was followed by a series of expeditions focused on seafloor mapping and ROV explorations, testing and integrating emerging exploration technologies, and conducting shallow-water surveys as part of a new partnership with the National Geographic Society. Collectively, 2022 expeditions mapped over 162,000 km2 of seafloor and surveyed a diversity of habitats and geological features that ranged from coral reefs just a few meters below the surface to abyssal depths approaching 4,000 m.

Fundis and Wishnak explain the complex collaboration to rescue ROVs. In the middle of the 2021 Nautilus expedition season, the Ocean Exploration Trust benefited from precisely this sort of community connection. On Aug 26, 2021, their remotely operated vehicles unexpectedly became detached from E/V Nautilus in the middle of a dive in waters over 2,100 m deep at Endeavour Ridge, approximately 200 km offshore British Columbia, Canada. Thanks to a rallying of support from their partners, colleagues, and collaborators, just one week after the detachment, both ROVs were recovered from the seafloor. In two dives over the course of 26 hours, a team from the Woods Hole Oceanographic Institution (WHOI) Deep Submergence Lab deployed ROV Jason from the University of Washington's R/V Thompson and were able to work with the team aboard Nautilus to safely rescue both vehicles.

The East Pacific Rise from ~ 9–10°N is an archetype for a fastspreading mid-ocean ridge. In particular, the segment near 9°50'N has been the focus of multidisciplinary research for over two decades, making it one of the best-studied areas of the global ridge system. It is also one of only two sites along the global ridge where two historical volcanic eruptions have been observed. This volcanically active segment has thus offered unparalleled opportunities to investigate a range of complex interactions among magmatic, volcanic, hydrothermal, and biological processes associated with crustal accretion over a full magmatic cycle. At this 9°50'N site, comprehensive physical oceanographic measurements and modeling have also shed light on linkages between hydrodynamic transport of larvae and other materials and biological dynamics influenced by magmatic processes. Integrated results of highresolution mapping, and both in situ and laboratory-based geophysical, oceanographic, geochemical, and biological observations and sampling, reveal how magmatic events perturb the hydrothermal system and the biological communities it hosts.

While E/V Nautilus expeditions in 2022 surveyed a wide range of habitats and geological features, vast areas across the US Pacific Island Region remain completely unexplored. Therefore, Nautilus expeditions in 2023 will return to many of these poorly surveyed regions to continue filling the large knowledge gaps that remain in US waters of the Central Pacific. This will include ROV and mapping explorations in Papahanaumokuakea Marine National Monument, as well as in the Johnston and Palmyra/Kingman Units of the Pacific Remote Islands Marine National Monument. Furthermore, in 2023 Nautilus will conduct dedicated seafloor mapping surveys in the US exclusive economic zone south of the Main Hawaiian Islands and also around Jarvis Island, where large seafloor areas remain unmapped.

Despite the global COVID-19 pandemic, the Ocean Exploration Trust successfully conducted a 2020 field season of nearly four months at sea. This year, the tenet of \"safety first\" required changes, including reducing the number of people on ship to maximize social distancing to the extent possible and adding a mask requirement. However, given OET's 12-year history of use and development of telepresence for E/V Nautilus, this did not require reducing the number of scientists conducting research. The 2020 field season met and exceeded expectations: an expanded shoreside research team engaged in each expedition, additional new sampling objectives were met, the 24/7 live stream gained more views than in longer field seasons in the past, and a popular series of live virtual events showcased the diversity of talent involved in ocean exploration. This year, 54 ROV dives were conducted with live streaming of subsea video to shore, where researchers viewed the video and graphical displays of oceanographic data.

A major goal of the Ocean Exploration Trust (OET) is to explore the ocean in order to provide the foundational knowledge needed to inform the sustainable stewardship of its resources and to share that information broadly. Given the magnitude and complexity of this task, partnerships are critical to OET's work. In 2022, OET continued to build on its long-standing collaborations in addition to our primary expedition partner NOAA Ocean Exploration and initiated new partnerships focused on meaningfully connecting OET's work to a wide array of ocean stakeholders, particularly those from geographies where E/V Nautilus operates.

Building from a foundation of pioneering telepresence technology that connects global audiences to the deep sea, the OET Education & Outreach team continued to innovate during the COVID-19 pandemic by quickly adapting to changes in travel and teaching landscapes. During this period, our Nautilus Live streaming platform and education resources were critical in offering real-time access to shipboard and remote scientists and engineers participating in expeditions, as well as students, educators, and the general public who were following along from home. As part of COVID-19 mitigation protocols, staffing during expeditions aboard E/V Nautilus was significantly reduced and, in a difficult decision, our signature education programs were postponed. With reduced shipboard staffing and our resulting expedition outreach paced more asynchronously, we optimized several features of the new website to support this new paradigm. As many expedition participants and Scientists Ashore engaged remotely from home offices, several features of our website were further developed to support partners exploring with us via telepresence.