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The ocean is so big that it can be easy to forget the microscopic beauty of the organisms that live within. Some of this beauty is documented by the Nikon Small World photomicrography competition...
This video, produced by Waterlust, shows how the Consortium for Advanced...
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Humpback whales ( Megaptera novaengliae ) are the most abundant baleen whale in...
Ocean conditions change every hour of every day. Tides, currents, and winds are...

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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...
On March 1, 1954, the United States military tested nuclear bombs in the ocean around Bikini Atoll in the Pacific Ocean to see what kind of damage they would do to ships. The largest explosion was...
Smithsonian squid expert Dr. Clyde Roper collaborated with National Geographic to attach this Crittercam to the head of a sperm whale, hoping to get footage of the whale’s favorite prey—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...
You may not think of the ocean as a pharmacy but scientists are developing exciting new medicines from the sponges, corals, and other marine organisms found in the sea. Explore other videos that...
New technology is making it possible for scientists to go where they’ve never gone before, the depths of the icy Arctic Ocean . By collecting organisms and mapping the seafloor, researchers can...
The Autonomous Underwater Vehicle (AUV) SeaBed, shown here as it is about to be deployed, has been used to survey deep-sea fishes and coral habitats. Learn more about how underwater vehicles study...
Ever since fourth grade I’ve wanted to explore the creatures and landscapes of the deep ocean in a submersible. It took awhile, but I finally got my chance this summer as part of the Deep Reef...
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...
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.
Have you ever seen a creature so unusual? This fish (22 cm long) is called a sea toad and studying them requires luck and the opportunity to descend into the deep waters where they live. Last week Dr...
The submersible Alvin carries scientists to the deep ocean, where they encounter amazing creatures and views of deep ocean life. Explore more in the Deep Ocean Exploration section .
How do we know where ocean animals swim day and night? Scientists are getting snapshots into the daily lives of whales , sharks , and even fish by tagging the animals to track their movements. You’ve...
'Blue Marble' image of the Earth taken from the VIIRS instrument aboard NASA's most recently launched Earth-observing satellite - Suomi NPP . This composite image uses a number of swaths of the Earth...
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...
We all know to avoid touching or eating oil (the fossil fuel variety that is). But after a coastal oil spill, avoiding oil can be difficult if you live near the sea or rely on it for protein or your...
NOAA’s New Millennium Observatory (NeMO) was set up to study geologic, chemical, and biologic interactions along the mid-ocean ridge system. Learn more about NeMO and watch a video about underwater...
Views of each sonar beam appear on the left side of this computer screen image while the path being mapped by the ship appears on the right. These 3-D color images enable ocean scientists to locate...
By Emily Frost When oil spills in the ocean, slicks are the center of media attention because they do so much immediate harm to wildlife. Oil floating at the surface can harm fish, kill birds,...
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