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...

During the NA175 expedition, our #CorpsOfExploration used NASA's sun photometer instrument to collect valuable information on the sun, including data used for modeling marine aerosols.

Do you remember that cool glowing rock from the NA174 expedition? Learn more about it via #geologist Val Finalayson in conversation with the Miami Herald: bit.ly/41Ed04e

Join us for a LIVE #QandA with those at-sea onboard #EVNautilus on Tuesday, September 2 and learn how our #CorpsofExploration became #oceanexplorers. Tune in and submit your questions at nautiluslive.org

September 1 marks the 40th anniversary of one of the most famous underwater discoveries of the 20th century: the #RMSTitanic. Led by OETs founder and President, Dr. #RobertBallard, the 1985 joint American-French expedition revealed the long-lost wreck. www.youtube.com/watch?v=TxZM...

In the first dives ever below the depth of 300m in the #NationalMarineSanctuaryofBikarandBokak, the team witnessed ecosystems that have been growing for hundreds, and in some cases thousands, of years. Watch the video: www.youtube.com/watch?v=MLTD...

The #RepublicoftheMarshallIslands is an atoll-based country of over 1,200 islands surrounded by 2.13 million square kilometers of ocean, the vast majority of which has never been mapped or surveyed. Revisit some of our favorite #wildlife sightings from NA174: bit.ly/4oI4F9h

In this #blog, NA174 Lead #ScienceCommunicationFellow Brittany Munson talks to shipmates Keoni Kattil, Meriana Poznanski, and Hovell Warane Dako as they sail on #EVNautilus exploring their home waters around the #MarshallIslands. bit.ly/3HoCkUT

Our #CorpsofExploration came across this beautiful #Iridogorgia genus coral rising from the seafloor about 1,972 meters deep on an unnamed seamount East of Ailinglaplap Atoll in the #RepublicoftheMarshall Islands. www.youtube.com/watch?v=_6Do...

#SampleSpotlight! Pictured is a fragmented lava suspended in lithified sediment. When exposed to UV light, the sediment phosphoresces, glowing green for several seconds. This brief "glow in the dark" effect tells us that the sediment is made out of calcite and/or a phosphate mineral.

During NA174, co-lead scientist Dr. Annette Govindarajan from #WHOI is sampling for #environmentalDNA (#eDNA) to explore the #deepsea #biodiversity in the #MarshallIslands region using the Multipuffer eDNA sampler built by Aquatic Labs integrated onto the #ROVHercules.

NA174 is already gifting us with some gorgeous deep sea rock samples!

Happy 25th anniversary to the National Marine Sanctuary Foundation- established in 2000 by America’s most influential ocean conservation leaders to protect our underwater national parks, for our public waters to be enjoyed and explored by all. Dive in at marinesanctuary.org/foundation25/!

While exploring the #deepsea around the #SolomonIslands, we caught sight of this gorgeous #glasssquid (family #Cranchiidae) with #ROVHercules. Glass squid (aka #cockatoosquid), have tiny pigment sacs (called #chromatophores) that help them change colors. www.youtube.com/watch?v=jyeu...

OET welcomes #SouthDakota native and University of Hawai'i Hilo student Hayden Niles aboard #EVNautilus as an #OceanScience intern for the NA174 expedition. Read more via KXLG: bit.ly/46ATWXS

The #RepublicoftheMarshallIslands is an island nation in the Central Pacific region of #Micronesia consisting of 29 low-lying atolls and five main islands surrounded by 2.13 million km2 of mostly unexplored seafloor. Stay tuned as we explore the #deepsea of this special place.