The #CorpsofExploration aboard #EVNautilus are officially in shakedown! This is a pre-season period during which we test all the technology and equipment on the ship to prepare it for the fieldwork ahead. Stay tuned as we gear up for the 2026 season!

In 2026, Ocean Exploration Trust and its partners will explore deep-sea habitats in the Central and Western Pacific over five expeditions. Learn more in our blog: bit.ly/4dHyy4T The 2026 E/V Nautilus expeditions are primarily sponsored by NOAA Ocean Exploration via the OECI.

Congrats to 2026 Lead #ScienceCommunicationFellow Kim Etsitty from Navajo Pine High School, who will be returning to #EVNautilus this year! Learn more via The Tri-City Record: bit.ly/4uflVVR

Ocean Exploration Trust's 2025 field season took #EVNautilus across the Pacific, with seven multi-disciplinary expeditions exploring some of the region’s most underexplored waters. Read our 2025 Field Season Report here: nautiluslive.org/science/publ...

Piece together the wonders of the deep sea and the ROV that sees them with these multi-difficulty #puzzles, building teamwork skills, patience, and problem-solving skills with these printable #puzzles: bit.ly/42byll6

After reviewing hundreds of competitive applications, OET is excited to announce the nineteen participants selected to join our upcoming Nautilus expedition season as part of the #ScienceandEngineeringInternshipProgram! Congratulations: bit.ly/48MoTIE

Over the years, while exploring the #deepsea, our Corps of Exploration has been fortunate enough to witness (and even sometimes sample) fossilized #sharkteeth. Learn more about our observations and collections of fossilized #shark teeth in this #blog: nautiluslive.org/blog/2026/04...

It's #NationalDolphinDay! Take a look back at our 2022 #FromShoretotheAbyss expedition with the National Geographic Society. Together, the team tested new technology to study cetacean vocalization in the waters of Maui, Lanai, and Hawai’i Island: www.youtube.com/watch?v=mWAV...

Congrats to former #ScienceCommunicationFellow Matthew Holden on being awarded the Robert E. Yager Foundation Excellence in Teaching Awards from the National Science Teaching Association! bit.ly/4vpthXO

Who doesn’t love a #DumboOctopus? This one was spotted during a 2019 dive on Kingman Ridges. Dumbos are known for having prominent ear-like fins that extend from the mantle above each eye. Did you know dumbo octopus refers to not one, but a whole genus of umbrella-armed species.

Former OET #ScienceCommunicationFellow Ariel Waldman's new series "Life Unearthed" premieres on April 1 on PBS. Learn more: www.pbs.org/show/life-un...

We're excited to share our 2026 expedition season map as a preview for the upcoming year of exploration! Stay tuned for more information on what's next for #EVNautilus!

We want to extend our deepest congratulations to OET Founder Dr. #RobertBallard for being honored with the Pathfinder-class oceanographic survey ship USNS Robert Ballard in his name. Learn more: bit.ly/4uDDUGb

#WereHiring! OET is looking for a Production & Design Coordinator to join our Education and Outreach Team in a remote, full-time position. Share the wonder of ocean exploration through video production, social media, web outreach, and campaigns! nautiluslive.org/about/employ...

Are you looking for some #ocean themed books for #ReadAcrossAmerica? Check out our reading list: nautiluslive.org/resource/rec...

We invite you to celebrate #ComputerScienceEducationWeek with our #STEMLearningModule "Codes and Controlling." Use this easy-to-follow module to teach students hardware, software & #coding basics using an Arduino microcontroller: bit.ly/4rFsGQ5 #ComputerScience #LearntoCode

Your artwork could go on an ocean adventure aboard #EVNautilus! Students ages 5 to 18 can submit artwork for consideration for the official Nautilus Expedition Season Stickers and Patch to be worn and displayed by members of the #CorpsofExploration. Learn more: bit.ly/47LODnm

#PublicationAlert! A recent paper describes seven new species of Lepidonotopodini #scaleworms from deep-sea chemosynthetic ecosystems, including some samples collected by #EVNautilus in the #Galapagos in 2015. Read it in Marine Biodiversity here: bit.ly/4ofrhws

A new species of a tiny deep-sea limpet reveals big secrets of the deep sea! New study from Professor Gonzalo Giribet's lab describes an exciting find from the 2023 @nautiluslive.org expedition to the remote Johnston Atoll

Your artwork could go on an ocean adventure aboard #EVNautilus! Students ages 5 to 18 can submit artwork for consideration for the official Nautilus Expedition Season Stickers and Patch to be worn and displayed by members of the #CorpsofExploration: Learn more: bit.ly/47LODnm

In 2025, E/V Nautilus and the Corps of Exploration spent six months exploring the Central, Western, and Southern Pacific, mapping unsurveyed seafloor, and bringing new views of never-before-seen seafloor to the world. youtu.be/oz0x4xQ_Ivk?...

Happy #WorldJellyfishDay! Which OET #jellyfish sighting is your favorite?

#NewBookAlert! #CorpsofExploration member Jon Willis's new book "The Pale Blue Data Point: An Earth-Based Perspective on the Search for Alien Life" includes some of his experience sailing on #EVNautilus in search of unique #deepsea habitats. Learn more: bit.ly/4od4mTh

During the NA176 expedition, our team encountered a wealth of biodiversity, including many gorgeous #GlassSponges. In this video, you’ll get up close and personal with some of them. www.youtube.com/watch?v=2OEW...

Is it a butterfly doing a backstroke? You may not know it, but this deep-sea #isopod is a rare sight! Scientists still have much to learn about the long-limbed crustacean #Bathyopsurus, as only a few specimens (of only two species) have been collected. www.youtube.com/watch?v=qOBz...

Have you ever heard of a #lizardfish? Our Corps of Exploration came across this #HighfinLizardfish (Bathysaurus mollis) at over 4,700 meters (15,400 ft) deep while exploring the abyssal plains in the deep sea around the #CookIslands. www.youtube.com/watch?v=pFyz...

#TBT with @bizarrebeastsshow.bsky.social as they discuss some of the "blobby"-est creatures, including some witnessed by OET during our exploration: www.youtube.com/watch?v=sb9j...

We encountered this #BigfinSquid (genus Magnapinna) over 5,100 meters deep while exploring the abyssal plain in the waters of the #CookIslands. They are rarely ever seen by humans and are the only squid known to live as deep as the hadal zone. www.youtube.com/watch?v=7UvS...

Sail onboard #EVNautilus in 2026 with a PAID internship! We're accepting applications in four categories: #OceanScience, #RemotelyOperatedVehicle #Engineering, #VideoSystemsEngineering, and #SeafloorMapping/Hydrography! Learn more and apply by January 4, 2026: nautiluslive.org/join/interns...

For the NA176 expedition, we set out to explore the deep waters surrounding the Cook Islands. In this photo album, you'll see some of the many biological highlights in photographs captured using the 4K imaging system on the MxD SeaCam: bit.ly/4nWSjJS.

Spotted: a dumbo octopus (Grimpoteuthis genus) on the abyssal plain in the waters of the #CookIslands, over 5,000 meters deep. Watch for a gorgeous look at the underside of this octopus, including the rows of suckers on its eight tentacles. www.youtube.com/watch?v=Yc0U...

For the first time this season, the team aboard #EVNautilus is exploring the deep sea with the help of #ROVLittleHercules. Working in tandem with ROV Atalanta, Little Hercules is an imaging-vehicle capable of reaching more than 90% of the world's ocean floor. www.youtube.com/watch?v=FtJq...

#SeaCucumbers are essential to the cycling of nutrients of the #seafloor, gathering, processing, and depositing out ocean food! These squishy superheroes are major players in storing carbon and an ocean system that stabilizes the whole planet's climate. www.youtube.com/watch?v=81Q5...

Happy #HagfishDay! We found this #hagfish inside a sponge while exploring Monterey Bay National Marine Sanctuary in 2018. The #Pacifichagfish (Eptatretus stoutii) is a slender, slimy, primitive fish found in cold waters worldwide.

Our #CorpsofExploration witnessed this #CasperOctopus from the suborder Incirrata while exploring a series of knoll hills in the central region of the #CookIslands' waters while diving over 4,100 meters (13,000+ feet) deep www.youtube.com/watch?v=bNjQ...

Spooky season must be here because while exploring the seafloor in the Cook Islands, our team came across these two eerie but amazing #facelesscuskeels (Typhlonus nasus). Navigating the world guided by their large nostrils, Typhlonus #eels live as deep as 5,100m. www.youtube.com/watch?v=d3nC...

Happy #WorldOctopusDay! Our #CorpsofExploration spotted this #dumbooctopus in 2021 while exploring an unnamed Seamount near the Chautauqua Seamounts, some 150 miles west of Kaua’i. #octopus #NautilusLive

During the NA176 expedition, OET is partnering with Deep-Sea Power & Light to field test a new ultra-high resolution video camera on #ROVHercules and #ROVLittle Hercules: the MxD SeaCam cutting-edge 4K imaging system. Learn more in our #blog: bit.ly/4npOQ62

During NA175 mapping the waters of the Central #Pacific, the team aboard #EVNautilus had the privilege of connecting with NASA - National Aeronautics and Space Administration #Astronaut (and #CorpsofExploration member) Zena Cardman on the #InternationalSpaceStation. www.youtube.com/watch?v=42-2...

Today, set sail on our last expedition of 2025 to explore previously unsurveyed deep-sea areas of the #CookIslands using mapping, telepresence, and the ROVs Hercules, Little Hercules, and Atalanta of #EVNautilus. Learn more in our blog: bit.ly/4gExwHY

As part of our NA173 expedition exploring the maritime archaeology of #Guadalcanal, our #CorpsofExploration aboard #EVNautilus used remotely-operated vehicles (ROVs) to explore the #WorldWarII #shipwreck #USSPreston. youtu.be/7gBmxVJj8Fw?...

In the summer of 2025, the #CorpsofExploration aboard #EVNautilus explored the #shipwreck #USSAstoria with remotely operated vehicles (ROVs). The USS Astoria was lost during the #BattleofSavoIsland on August 9, 1942, during #WorldWarII. www.youtube.com/watch?v=N81o...

While exploring the deep ocean within the Bikar and Bokak National Marine Sanctuary of the Marshall Islands, we encountered a variety of deep-sea anemones, predatory marine invertebrate animals in the Order Actiniaria and integral parts of the deep-sea ecosystem. www.youtube.com/watch?v=rnAf...

How do squids change color? 🌈🦑🧪 In the ocean’s twilight zone, glass squids like this one spotted by @nautiluslive.org rely on transparency to avoid predators, but when that fails, they activate backup camouflage.

During NA173, the international team onboard #EVNautilus explored the World War II shipwreck #USSQuincy. This is the first visual survey of the 179-meter-long New Orleans-class heavy cruiser in 33 years since its discovery by a Robert Ballard-led expedition in 1992. www.youtube.com/watch?v=QueK...

OET's Founder and President, Dr. #RobertBallard, recently joined an expedition led by fellow National Geographic Explorer Dr. Kathleen Martínez looking for #Cleopatra's lost tomb. Their team uncovered a sunken landscape near the ruins of Taposiris Magna: Learn more: bit.ly/3Kwfg7y

#FreeResource Alert! Above & Below is a narrated visual booklet created to help show the importance of the unknown, how humans are exploring the depths of the ocean, and what the #deepsea can tell us about the past. Access it here: bit.ly/4mZeqPc

Join the 2026 Nautilus Exploration Program and sail on #EVNautilus with the #CorpsofExploration next year! Applications are now open for both the Science Communication Fellowship and the Science and Engineering Internship Program! Learn more and apply: nautiluslive.org/education

Learn more about the Argo floats deployed from #EVNautilus during the NA172 expedition via @scrippsocean.bsky.social: bit.ly/4gp6OTG

While #EVNautilus prepares for its final expedition of the 2025 season, dive back into some of the year’s most unforgettable moments beneath the waves. This highlight reel captures the discoveries that made 2025 one for the books. www.youtube.com/watch?v=MxN1...