Expeditions & Projects

Navigate NOAA Ocean Exploration-supported missions

Principal investigator Jennifer McKinnon diving on a Japanese “Emily” seaplane in the waters off Saipan in the Northern Mariana Islands. The site is significant to the history of the World War II Battle for Saipan and has two monuments to those lost.

NOAA Ocean Exploration supports research expeditions to explore previously unvisited areas of the ocean. We provide partnership coordination, funding, staff, tools, and expertise needed to develop mission plans that deliver rigorous, systematic observations and documentation of biological, chemical, physical, geological, and archaeological aspects of the ocean.

Follow expeditions supported by our office, including those on NOAA Ship Okeanos Explorer, while they are underway or trace the activities and discoveries of past expeditions. For each expedition covered on the website, you’ll find information ranging from expedition plans and feature stories to educational materials and expedition daily updates, videos, and images. Use the links below to navigate NOAA Ocean Exploration-supported missions.

Web content for expeditions and projects led or supported by NOAA Ocean Exploration prior to 2019 has been archived. Expeditions and Projects 2001-2018 provides a list of these expeditions and projects with direct links to their content on the archive site.

A three-dimensional point cloud model of the shipwreck "Senator" resting on the seafloor, rendered with colored points ranging from green for the seabed and lower parts of the hull to yellow and orange for the upper deck and structures. The data visualization shows the vessel's form and the surrounding underwater terrain against a dark background.
Exploring Wisconsin Shipwreck Coast National Marine Sanctuary at Scale

In August 2025, a team of maritime archaeologists and engineers conducted fieldwork in Lake Michigan’s Wisconsin Shipwreck Coast Marine National Sanctuary. Their goal was to test new technology and techniques for exploring deepwater shipwrecks — and learn more about our past.

Marine research equipment on a boat deck with docks and buildings in the background.
Exploration of the Deep Ocean With Teams of Long-Endurance Ocean Robots

In July/August 2022, a project team successfully demonstrated the ability to use coordinated uncrewed systems for long-range and long-endurance ocean exploration without a support ship and with advanced near-seafloor navigation capabilities.

Acoustic Mapping and Characterization of Seafloor Hydrothermal Discharge With Multibeam Echosounders on Uncrewed Underwater Vehicles

A research team developed acoustic techniques to more efficiently find and characterize hydrothermal vents using uncrewed underwater vehicles equipped with multibeam sonars.

A variety of deep-sea corals (and other marine life) observed during the 2025 Aleutian Arc expedition.
The Aleutian Arc: Integrated Exploration of Biodiversity at Priority Benthic Habitats

From June 15-July 2, 2025, federal and academic scientists explored the deep waters of the Aleutian Arc off Alaska. This ship- and submersible-based expedition gathered vital data about the region’s natural resources and seafloor hazards.

White trays with shrimp specimens and labels arranged on a surface.
Exploration and Characterization of Deep-Pelagic Crustaceans in the Southern California Exclusive Economic Zone

In 2024, a team of researchers began a lab-based project to study the biodiversity of crustaceans collected with trawls from the deep ocean water column off Southern California. 

Field Validation of Novel Low-Cost Underwater Robot for Deepwater Exploration and Characterization

During their second and final year of fieldwork, this team of engineers and scientists tested two low-cost underwater vehicles during shore-based day operations at the Makapu‘u Precious Coral Bed, a federally protected deepwater habitat off the east coast of Oahu, Hawai‘i.

Underwater shipwreck covered in algae with a scuba diver in the background.
Software Tools to Enable Automated Detection of Submerged Archaeological Sites From Multibeam Sonar

Using artificial intelligence, roboticists have developed a new way to virtually detect and discover submerged archaeological sites — like shipwrecks. Their approach relies on a machine learning model to automate the search for such sites in multibeam sonar data collected by surface vessels.

NOAA Ship Okeanos Explorer at sea during the 2022 Caribbean Mapping expedition.
Beyond the Blue: Palau Mapping

From July through October, NOAA Ocean Exploration will conduct three exploratory mapping expeditions on NOAA Ship Okeanos Explorer in waters of Palau. Honoring the commitment the United States made to Palau in 2022, NOAA is working with the Palau International Coral Reef Research Center (PICRC) to collect high-resolution mapping data over a large area of the Palau National Marine Sanctuary.

View from Research Vessel Thomas G. Thompson on the third evening of the Escanaba Trough: Exploring the Seafloor and Oceanic Footprints expedition.

NOAA Ocean Exploration in the Field: 2025

NOAA Ocean Exploration works with partners to explore previously unknown areas of our ocean, making discoveries of scientific, economic, and cultural value and supporting innovations in exploration tools and capabilities. In 2025, projects will take place in the North and South Pacific oceans and Lake Michigan. Learn more about what we have planned for this year and check back often as we add summaries highlighting major accomplishments and other content from each project.