Ocean Exploration Trust
@nautiluslive.org
470 followers 7 following 140 posts
Posts Media Videos Starter Packs
nautiluslive.org
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
nautiluslive.org
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
The MxD SeaCam: A Journey to a New Standard in Subsea Imaging
During the NA176 expedition to explore deep-sea habitats of the Cook Islands, the Corps of Exploration aboard E/V Nautilus welcomes a new piece of ocean exploration technology: DeepSea Power & Light’s...
bit.ly
nautiluslive.org
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...
From Space to Sea: A Conversation with an Astronaut | Nautilus Live
YouTube video by EVNautilus
www.youtube.com
nautiluslive.org
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
Exploring Deep Sea Habitats of the Cook Islands with New Camera Tech
OET’s last expedition of 2025 will explore previously unsurveyed deep-sea areas of the Cook Islands.
bit.ly
nautiluslive.org
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?...
Exploring the USS Preston WWII Shipwreck | Nautilus Live
YouTube video by EVNautilus
youtu.be
nautiluslive.org
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...
Using ROVs to Explore WWII Wreck USS Astoria | Nautilus Live
YouTube video by EVNautilus
www.youtube.com
nautiluslive.org
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...
Deep-Sea Anemones of the Marshall Islands | Nautilus Live
YouTube video by EVNautilus
www.youtube.com
Reposted by Ocean Exploration Trust
museumofscience.bsky.social
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.
nautiluslive.org
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...
First Sighting of USS Quincy Shipwreck in 30+ Years | Nautilus Live
YouTube video by EVNautilus
www.youtube.com
nautiluslive.org
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
Exclusive: Ancient port from Cleopatra’s time found underwater in Egypt
During her hunt for the Egyptian queen’s lost tomb, National Geographic Explorer Kathleen Martínez uncovered the sunken landscape near the ruins of Taposiris Magna.
bit.ly
nautiluslive.org
#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
Above & Below Booklet
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 deep sea can tell us about past organisms,...
bit.ly
nautiluslive.org
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
nautiluslive.org
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...
EV Nautilus 2025 Mid-Season Highlights | Nautilus Live
YouTube video by EVNautilus
www.youtube.com
nautiluslive.org
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.
nautiluslive.org
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
nautiluslive.org
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
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...
Titanic Discovery’s 40th Anniversary: Dr. Robert Ballard and New Exhibition
YouTube video by EVNautilus
www.youtube.com
nautiluslive.org
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...
Stunning Deep Sea Biodiversity of Bikar and Bokak National Marine Sanctuary | Nautilus Live
YouTube video by EVNautilus
www.youtube.com
nautiluslive.org
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
nautiluslive.org
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
A Meaningful Journey for Three Young Marshallese Explorers
This blog was written by NA174 Lead Science Communication Fellow Brittany Munson.
bit.ly
nautiluslive.org
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...
Beautiful Iridogorgia Coral Rises Meters from the Seafloor | Nautilus Live
YouTube video by EVNautilus
www.youtube.com
nautiluslive.org
#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.
nautiluslive.org
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.
nautiluslive.org
NA174 is already gifting us with some gorgeous deep sea rock samples!