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Sea turtles may have survived the planetary changes that killed the dinosaurs, but now they are threatened by fisheries. It's estimated that some 4,600 sea turtles are killed by fishing nets and hooks every...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
If there had been room to stand up, there would have been a standing ovation...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
Microbes are some of the most important organisms in the sea. These miniscule...
Scientists from the Integrated Ocean Drilling Program (IODP) collect sediments...

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The first time biologist Mandy Joye dove to the deep sea in the Johnson-Sea-Link submersible (pictured here), she had never seen the bubbles of a methane seep. But after that fateful day in 1994, she was entranced. Instead of...
AUV Sentry is an autonomous underwater vehicle (AUV) that was used in the...
On March 1, 1954, the United States military tested nuclear bombs in the...

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Take a tour of the Alvin, a three-person submersible that allows scientists to explore the depths of the ocean. This is an...
“It’s a little appreciated fact that most of the animals in our ocean make light,” says Edie Widder, biologist and deep sea explorer at ORCA. In this TED talk, she shows incredible film and photos...
Researchers use Autonomous Reef Monitoring Structures (ARMS) like this one to study the diversity of coral reef organisms. They leave the structures underwater for about a year. Then they retrieve...
The Curasub departs for a deep sea dive, up to 1,000 feet off the island of Curaçao, where this sub is located. Smithsonian's Deep Sea Observation Project (DROP) is exploring these waters and using...
Scientists on the tiny island of Moorea, in the Pacific, are gathering one of every life form large enough to pick up with tweezers. They're on a quest to build a detailed catalog of the entire...
The spiral-tufted bryozoan ( Bugula neritina ) is being studied for a potential Alzheimer's disease and cancer drug—but it's not the bryozoan that makes the chemical. The chemical, found in the...
In the spring of 2011, a research crew from Oceana spent two months in the brackish Baltic Sea . The Baltic faces challenges from pollution, algae blooms, over fishing, and invasive species. Oceana...
The bright, brilliant swirls of blue and green seen from space are a phytoplankton bloom in the Barents Sea. Phytoplankton can bloom like this, rapidly growing and reproducing, because of a sudden...
Scientists talk about the experience of exploring the ocean in this excerpt from the Deep Ocean Explorers video. More about deep ocean exploration can be found in our Deep Ocean Exploration featured...
Dr. Clyde Roper prepares to dive thousands of feet to a giant squid habitat off the coast of New Zealand in a one-person submersible. More about the giant squid can be found in our Giant Squid...
Chilean and Smithsonian paleontologists study several fossil whale skeletons at Cerro Ballena, next to the Pan-American Highway in Atacama Region, Chile, in 2011. The fossils were discovered when the...
We drove down a long dirt road on the northern side of Curaçao looking for a remote place to snorkel and sample. After a 30-minute bumpy ride, our team stepped out of the car into a breeze and the...
Part 2 of a 6-part series describing Woods Hole Oceanographic Institution's (WHOI) efforts to understand the scope and impact of the Deepwater Horizon oil spill in the Gulf of Mexico. "How Much Oil...
Drifters deployed into the Gulf of Mexico sent location information back to scientists through a GPS satellite. Some of the 5.7 million data points about the drifters locations are seen in this map...
Smithsonian researchers are using this five-person submersible to study the biodiversity of the deep reefs of Curaçao in the southern Caribbean. Read about their adventures in the Summer in a Sub...
On her maiden voyage the Royal Mail Ship Titanic struck an iceberg in the North Atlantic just before midnight on April 14th, 1912. Dr. Robert Ballard first discovered the ship's wreckage in 1985...
Welcome to Moorea, a tiny, isolated island in the middle of the vast Pacific. Moorea is 132 square kilometers (51 square miles) of tropical ecosystems – from jungle and wetlands to beaches and coral...
When he was 10 years old, Stephen Cairns lived in Cuba where he kept a collection of butterflies and sea shells. When his family moved to Louisiana, he could bring only one of the collections with...
Success! A so-called "dumbo" octopod is chased and finally captured by a suction device on the ROV, skillfully operated by a pilot on the ship above.
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