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About DROP DROP is a multidisciplinary Smithsonian project exploring the diversity of tropical deep reefs off the coast of Curaçao in the southern Caribbean. Deep reefs are natural extensions of shallow water reefs. But...
A fleet of underwater floats called Argo is deployed at more than 3,000 spots...
Most scuba divers scour coral reefs looking for colorful fish, natural beauty,...
You’re out to sea on a 355 foot platform, and suddenly one end begins to slowly...

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The sea's largest fish has been a mystery until recent decades. Thanks to electronic tags, researchers are uncovering some of the secrets of the whale shark ( Rhincodon typus Smith, 1828 ). One tagged animal, dubbed "Rio Lady,"...
The spiral-tufted bryozoan ( Bugula neritina ) is being studied for a...
Researchers launch one-meter-tall plastic drifters into the Gulf of Mexico...

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New technology is making it possible for scientists to go where they’ve never gone before, the depths of the icy Arctic...
The research submersible Alvin uses bright lights to illuminate the dark seafloor. Built in 1964, it has made more than 4,400 dives. It can carry two scientists and a pilot as deep as 4,500 meters (...
Algae, like all organisms, normally grow in balance with their ecosystems, limited by the amount of nutrients in the water. But sometimes, certain species of algae reproduce so rapidly that they...
Editor's note: Thank you for your interest in this app. Unfortunately, it is no longer available. Amazing Ocean is a brand new, free mobile app developed by the U.S. Department of State that features...
Researchers collect underwater noises with autonomous recorders.
Brian Skerry warily stares down his photography equipment on board the vessel Nai'a on an expedition to the Phoenix Islands. Read about the patience it takes as a traveling photographer and the work...
Ice divers Katrin Iken (left) and Elizabeth Siddon are about to descend through a hole in the Arctic ice and into the frigid world below.
The Johnson-Sea-Link submersible launches to study cold-water corals off Florida in 2009. Explore more the multimedia feature " Coral Gardens of the Deep Sea ."
An estimated 1.8 billion people will suffer from water scarcity by 2025. Looking for sources of water is becoming important and with oceans containing around 97% of Earth’s water, it would be nice if...
A small horseshoe crab ( Limulus polyphemus ) rests on seaweed in Stage Harbor, Massachusetts. Atlantic horseshoe crabs can be found along the coast of North America from the Yucatán Peninsula to...
By Emily Frost Throw a message in a bottle into the vast ocean and where does it go? The answer to this question is not just a romantic curiosity. Thinking about where a small floating item might end...
Using a deep-diving ROV, the crew aboard Oceana’s research vessel Ranger were surprised to discover large colonies of deep-sea white coral in the Western Mediterranean Sea in July 2010. Most of the...
This radio device is used to track North Atlantic right whales. Suction cups hold the device to a whale's back, where it records data such as depth, water, temperature, and underwater sounds. These...
Dr. Robert Ballard poses with an unmanned submersible, like the one he used when locating and exploring the wreck of the RMS Titanic. A veteran explorer, former U.S. Navy Commander, and professor of...
Scientists aboard the MV Hanse Explorer have to fit a lot of scientific equipment in a small space! Read about it here .
Researchers launch one-meter-tall plastic drifters into the Gulf of Mexico in 2012. Over 300 of these drifters were released and their location information was sent to researchers every five minutes...
Part 3 of a 6-part series describing Woods Hole Oceanographic Institution's efforts to understand the scope and impact of the Deepwater Horizon oil spill in the Gulf of Mexico. "Sampling the Source"...
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