The NOAA Office of Ocean Exploration and Research (OER) supports research expeditions to explore previously unvisited areas of the ocean. OER provides 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 OER-supported expeditions, including those on NOAA Ship Okeanos Explorer, while they are underway or trace the activities and discoveries of past expeditions by clicking on the expedition-specific links below. For each expedition, you'll find information ranging from mission plans and background essays to educational materials and mission logs, expedition daily updates, videos, and images.
In addition to browsing expeditions by topic below, you can also browse expeditions by location or by year.
From coral ecosystems to marine archaeology and seafloor mapping, find ocean explorations that pique your interest by selecting from the topics below.
NOAA Ship Okeanos Explorer: 2020 Expeditions Overview
October 2019 - September 2020: The NOAA Office of Ocean Exploration and Research will embark on NOAA Ship Okeanos Explorer to conduct three regional expeditions starting with the U.S. Southeastern Continental Margin, moving to the Northern Caribbean, and finally, the Mid-Atlantic Ridge near the Azores.
Surveying Deep-sea Corals, Sponges, and Fish Habitat
October-November 2019: NOAA, the Global Foundation for Ocean Exploration, the U.S. Geological Survey, and Bureau of Ocean Energy Management conducted a 29-day expedition to explore along the California, Oregon, and Washington coasts.
Deep Connections 2019
August-September 2019: NOAA and partners conducted an expedition on NOAA Ship Okeanos Explorer to explore deepwater areas of the U.S. and Canadian Atlantic continental margin.
Finding Boundaries in the Deep Sea
July-August 2019: Scientists will study the benthic (seafloor) communities of seamounts in the North Pacific to determine if/how water masses influence the difference in deepwater fauna between the Aleutians and Hawaii.
Gulf of Alaska Seamounts 2019
July-August 2019: A multi-disciplinary and international team sailed to the Gulf of Alaska Seamounts region to collect data to help us better understand the diversity of marine life in this underexplored region.
2019 Technology Demonstration
July-August 2019: NOAA and partners conducted a mission on NOAA Ship Okeanos Explorer to demonstrate, test, and evaluate five emerging and existing technologies for possible integration into NOAA operations.
Windows to the Deep 2019
May - July 2019: NOAA and partners conducted an expedition on NOAA Ship Okeanos Explorer to explore unknown and poorly understood deepwater areas of the southeastern United States.
E/V Nautilus: 2019 Field Season
May - October 2019: Scientists will use the Ocean Exploration Trust’s Exploration Vessel (E/V) Nautilus to document and survey unexplored regions along the West Coast of the United States and in the Central Pacific, including American Samoa and U.S. Territorial Islands.
Mapping Deepwater Areas in the Caribbean and South Atlantic Bight
November - December 2018: NOAA Office of Ocean Exploration and Research and partners conducted telepresence-enabled mapping and remotely operated vehicle dives in the deep waters of the U.S. Exclusive Economic Zone, Bahamas, Dominican Republic, and Turks and Caicos Islands.
Kiska: Alaska's Underwater Battlefield
July 2018: This team built on existing archaeological and historical data to explore the underwater battlefield of Kiska Island, Alaska, which is one of the least studied, yet most significant sites of World War II.
2018 - 2020: The Atlantic Seafloor Partnership for Integrated Research and Exploration, or ASPIRE, is a collaborative ocean exploration field program focused on the North Atlantic Ocean.
Windows to the Deep 2018
May - July 2018: NOAA and partners conducted an expedition on NOAA Ship Okeanos Explorer to collect critical baseline information about unknown and poorly understood deepwater areas of the Southeastern United States.
June - September 2018: Between June 27 and September 26, 2018, a team surveyed five areas of Lake Huron within and adjacent to Thunder Bay National Marine Sanctuar, searching for lost World War II training aircraft.
E/V Nautilus: 2018 Field Season
June - November 2018: Scientists used the Ocean Exploration Trust’s Exploration Vessel (E/V) Nautilus to document and survey unexplored regions from British Columbia, Canada, along the West Coast of the United States, and the Hawaiian Islands.
May - June 2018: The DeepCCZ Project used the best-available technology in deep-sea ecological, taxonomic, and connectivity studies to study deep-sea biodiversity in the western Clarion-Clipperton Zone (CCZ) of the central Pacific Ocean.
Voyage to the White Shark Café
April - May 2018: A multidisciplinary team aboard the Research Vessel Falkor journeyed to an open patch in the Pacific Ocean known as the “White Shark Café” to study one of the most iconic predators in the ocean: The white shark.
Gulf of Mexico 2018
April - May 2018: NOAA and partners conducted a telepresence-enabled ocean exploration expedition on NOAA Ship Okeanos Explorer to collect critical baseline information about unknown and poorly understood deepwater areas in the Gulf of Mexico.
Peleliu’s Forgotten World War II Battlefield
March - April 2018: This project was the first of its kind in Peleliu to explore the landing beaches and fringing reef by conducting a comprehensive, systematic remote sensing search for the material remains from this forgotten battlefield.
Gulf of Mexico Technology Demonstration
March - April 2018: The Gulf of Mexico Technology Demonstration was the first operational cruise on board NOAA Ship Okeanos Explorer in 2018, during which we conducted our first emerging technology demonstration projects.
NOAA Ship Okeanos Explorer: 2018 Overview
October 2017 - September 2018: NOAA Ship Okeanos Explorer returned to the Atlantic Ocean and conducted a series of expeditions to continue exploration of the deep waters of the U.S. Gulf of Mexico and North Atlantic.
Gulf of Mexico 2017
November - December 2017: A team of scientists and technicians, both at-sea and shore-based, conducted exploratory investigations into the diversity and distribution of deep-sea habitats and associated marine communities in the Gulf of Mexico basin.
Discovering Deep-Sea Corals of the Phoenix Islands
October - November 2017: The goal of this expedition was to provide the first glimpse of the deepwater communities within the largest and deepest UNESCO World Heritage Site on Earth, the Phoenix Islands Protected Area.
Musicians Seamounts Telepresence Mapping
August 2017: Operations during the expedition included focused mapping and strategic mapping transits by NOAA Ship Okeanos Explorer within the waters of Hawaii and in international waters at the Musician Seamounts chain.
Cuba’s Twilight Zone Reefs and Their Regional Connectivity
May - June 2017: The R/V F.G. Walton Smith circumnavigated Cuba, conducting daily remotely operated vehicle dives to focus on the mesophotic reef in order to discover and characterize the extent of mesophotic reefs in Cuba and to compare the health and connectivity (physical, genetic, and ecological) among the mesophotic and shallow coral reef systems in Cuba and the United States.
Exploring Methane Seeps on the U.S. Mid-Atlantic Margin: IMMeRSS
May 2017: Scientists on the IMMeRSS (Interagency Mission for Methane Research at Seafloor Seeps) expedition focused on the geology, ecology, chemistry, and physics of methane seeps on the U.S. Mid-Atlantic margin between Baltimore Canyon and Hatteras Canyon at water depths of 400-1,600 meters.
Exploring the Sunken Heritage of Midway Atoll
May 2017: Scientists explored sunken aircraft associated with the Battle of Midway, adding an important maritime heritage component to our understanding of the broader history of World War II in the Pacific.
E/V Nautilus: 2017 Field Season
May - November 2017: The Ocean Exploration Trust conducted the third year of exploration in the Eastern Pacific Ocean on Exploration Vessel Nautilus, as scientists documented and surveyed unexplored regions from British Columbia, Canada, along the West Coast of the United States, and to Baja California, Mexico.
Mountains in the Deep: Exploring the Central Pacific Basin
April - May 2017: NOAA and partners conducted a telepresence-enabled expedition on NOAA Ship Okeanos Explorer to collect critical baseline information about deepwater areas as it transited across the northern portion of the Cook Islands, with focused work in the vicinity of both the Jarvis Island and Kingman/Palmyra units of the Pacific Remote Islands Marine National Monument, prior to returning to Honolulu.
Discovering the Deep: Exploring Remote Pacific Marine Protected Areas
March 2017: NOAA and partners conducted a telepresence-enabled ocean exploration expedition on NOAA Ship Okeanos Explorer to collect critical baseline information about unknown and poorly known deepwater areas in the Howland and Baker Unit of the Pacific Remote Islands Marine National Monument and the Phoenix Islands Protected Area.
NOAA Ship Okeanos Explorer: 2017 Overview
December 2016 - September 2017: A team of NOAA and external partners conducted the third year of the ‘Campaign to Address Pacific monument Science, Technology, and Ocean NEeds (CAPSTONE)’ field effort, deploying NOAA Ship Okeanos Explorer to investigate and document the diversity and distribution of deepwater environments in U.S. central Pacific waters, the high seas, and waters of several Pacific Island countries and territoies.
Searching for Life in the Mariana Back-arc
November - December 2016: A team led by scientists aboard the Schmidt Ocean Institute’s Research Vessel Falkor traveled to the Mariana Back-arc, to explore newly discovered hydrothermal vents and the life they support.
Exploring Carolina Canyons
August - September 2016: A team of scientists and engineers aboard NOAA Ship Pisces explored three deepwater canyons off the coast of North Carolina.
E/V Nautilus: 2016 Field Season
May - September 2016: E/V Nautilus explored sites sites from British Columbia and along the west coast of North America down to southern California.
2016 Deepwater Exploration of the Marianas
April - July 2016: NOAA and partners conducted a three-cruise expedition on NOAA Ship Okeanos Explorer to collect critical baseline information of unknown and poorly known areas in and around the Marianas Trench Marine National Monument and the Commonwealth of the Northern Mariana Islands.
Hohonu Moana: Exploring the Deep Waters Off Hawai’i
July - September 2015: A team of NOAA and external partners both at-sea and on shore conducted mapping and remotely operated vehicle operations in the deep waters of the Hawaiian Archipelago, including the Papahānaumokuākea Marine National Monument and Johnston Atoll.
Search for the Lost Whaling Fleets of the Western Arctic
August 2015: This expedition brought the NOAA Office of National Marine Sanctuaries’ Maritime Heritage Program to the remote and challenging Alaska region for the first time in the more than four decades since the creation of the National Marine Sanctuary Program.
Bioluminescence and Vision on the Deep Seafloor 2015
July 2015: Scientists used combined expertise in bioluminescence, taxonomy, visual ecology, imaging and molecular biology, and the unique collecting capabilities and camera systems of the Global Explorer to continue studies of the deep-sea benthic environment in the Gulf of Mexico.
Tropical Exploration 2015
May - June 2015: NOAA Ship Okeanos Explorer journeyed from the Atlantic Ocean to the Pacific Ocean, exploring along the way. Okeanos Explorer will leave Puerto Rico to traverse the Western Caribbean, Panama Canal, and Eastern Pacific.
Mapping the Uncharted Diversity of Arctic Marine Microbes
January 2015 - August 2016: Scientists used next-generation DNA sequencing technologies and cutting-edge bioinformatics approaches to enable the discovery and characterization of the largely unknown molecular diversity of microbes associated with Arctic sea ice and seafloor habitats.
E/V Nautilus: 2015 Field Season
April - September 2015: E/V Nautilus explored sites from the Gulf of Mexico to British Columbia. The season marked the transition of the vessel and operations to the west coast of the United States and the Pacific Ocean, concluding over two years of research in the Gulf and Caribbean regions.
Submarine Ring of Fire 2014 - Ironman
November - December 2014: Scientists traveled to the Submarine Ring of Fire to study iron-oxidizing bacteria at hydrothermal vents and how carbon dioxide from submarine volcanoes impacts nearby biological communities.
Seamounts of Anegada Passage 2014
September 2014: Scientists on board the Exploration Vessel Nautilus visited several unexplored seamounts that punctuate the seafloor within the Caribbean Sea, uncovering information about geologic, biologic, and oceanographic processes.
E/V Nautilus: 2014 Field Season
June - October 2014: Exploration Vessel Nautilus embarked on a journey to document and research the regions of the Gulf of Mexico and Caribbean.
NOAA - Boeing Echo Ranger Pilot AUV Mission 2014
May 2014: NOAA’s National Marine Fisheries Service Southwest Fisheries Science Center worked with Boeing under a Cooperative Research and Development Agreement to explore the potential applicability of the large autonomous underwater vehicle (AUV) Echo Ranger for a rockfish survey.
East Coast Mapping
May 2014: NOAA Ship Okeanos Explorer conducted a 16-day mapping expedition beginning in Tampa, Florida, and ending at the ship’s homeport of North Kingstown, Rhode Island.
HADES: Kermadec Trench Expedition 2014
April - May 2014: Scientists on board the R/V Thompson, used the hybrid remotely operated vehicle, Nereus, to explore systematically for the first time the hadal Kermadec trench system and the neighboring abyssal plain in the Southwestern Pacific.
Exploration of the Gulf of Mexico 2014
February - May 2014: A team of scientists and technicians both at sea and on shore conducted exploratory investigations on the diversity and distribution of deep-sea habitats and marine life in the Gulf of Mexico.
Coral Ecosystem Connectivity 2013: From Pulley Ridge to the Florida Keys
August 2013: The R/V F.G. Walton Smith and the M/V Spree combined efforts in the second year of a five-year study to investigate the role that the mesophotic reefs of Pulley Ridge may play in replenishing key fish species and other organisms in the downstream reefs of the Florida Keys and Dry Tortugas.
Northeast U.S. Canyons Expedition 2013
July - August 2013: A team of scientists and technicians both at-sea and on shore conducted exploratory investigations on the diversity and distribution of deep-sea habitats and marine life along the Northeast U.S. Canyons and at Mytilus Seamount.
New England Seamount Chain Exploration
June 2013: NOAA Ship Okeanos Explorer conducted seafloor and water column mapping operations in the Western North Atlantic Ocean over a portion of the New England Seamount Chain.
Deepwater Canyons 2013: Pathways to the Abyss
April - May 2013: Scientists on the NOAA Ship Ronald H. Brown studied the biology of Norfolk Canyon, with some sampling in Baltimore Canyon and exploration of archaeological targets in and around the Norfolk Canyon area.
Russian-U.S. Arctic Census 2012
August - September 2012: Learn how scientists conducted long-term research to better understand the causes and consequences of environmental change in the fragile Arctic environment.
Deepwater Canyons 2012: Pathways to the Abyss
August - October 2012: Scientists aboard the NOAA Ship Nancy Foster explored and characterized hard- and soft-bottom communities as well as shipwreck sites in canyons off the coasts of Virginia and Maryland.
Turkey and Cyprus Expedition 2012
July - August 2012: Learn what scientists uncovered while on board Exploration Vessel Nautilus to explore the Black Sea, Aegean Sea, and Mediterranean Sea off the coasts of Turkey and Cyprus.
Exploring the Submerged New World 2012
July 2012: Scientists returned to two dive sites they visited in 2009, hoping to excavate late Pleistocene terrestrial sediments containing plants, animals, and perhaps artifacts from some of the first human beings to arrive in the New World.
INSPIRE: Chile Margin 2012
April 2012: During a 10-day cruise on the Research Vessel Melville, scientists probed for strange new biological life forms, communities, and ecosystems dependent unknown conditions.
Gulf of Mexico 2012
March - April 2012: A team of scientists and technicians both at-sea and on shore conducted exploratory investigations on the diversity and distribution of deep-sea habitats and marine life in the northern Gulf of Mexico.
Gulf of Mexico 2011
August – September 2011: Learn why the primary purpose of this expedition was to study the feasibility of using this capability to map gasses in the water column.
Exploring the Submerged New World 2011
August 2011: Scientists returned to four dive sites they visited in 2009 to study the biology, geology, and oceanography of a series of canyons off the middle Atlantic coast of the U.S.
Mid-Cayman Rise Expedition 2011
August 2011: NOAA Ship Okeanos Explorer traveled to the deepest part of the Caribbean Sea, where a team of international scientists both at-sea and on shore conducted interdisciplinary investigations of the Mid-Cayman Rise.
New Frontiers in Ocean Exploration 2011
July - November 2011: Scientists from a multi-institute initiative conducted ocean exploration projects in the Black, Aegean, and Mediterranean Seas and the eastern Atlantic Ocean over a five-month period.
Galápagos Rift Expedition 2011
July 2011: NOAA Ship Okeanos Explorer embarked on a unique expedition to one of the most fascinating areas of the world’s oceans to explore the water column and unexplored benthic environments in the Galápagos region.
Pacific Deep Reefs 2011
February - March 2011: In this deep-diving expedition to the Southern Pacific, scientists characterized deep-reef communities and began the task of assessing organisms for their biotechnology potential.