The Seafloor

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Smithsonian curator of fossil marine mammals Nick Pyenson and a team of collaborators are heading into Chile's Atacama Desert , shown here. They'll study a rich bonebed of fossil marine vertebrates that lived off...
Using maps and graphics, Smithsonian geologist Dr. Liz Cottrell provides an...
These deep-sea sediment cores were drilled from beneath the seafloor, and hold...
Climb aboard the scientific ocean drilling vessel Chikyu for a tour of this...

LATEST CATCH

The ocean, which we often break into five large ocean basins, covers 71 percent of the Earth's surface and holds over 1.3 billion cubic km of water. This massive space also holds over 99 percent of the area that can be inhabited...
These star-shaped grains of sand, collected from southern Japan, look like...
If you want to explore the depths of the ocean, you may want to go to the...

DIVE DEEPER

Scientists from the Integrated Ocean Drilling Program (IODP) collect sediments drilled from Earth’s crust. This marine...
Alvin, a human occupied vehicle (HOV), returns to the ship after a deep ocean dive to a seamount .
Imagine: You’re in a small submersible, and you gently settle on the soft muddy bottom at a depth of 12,000 feet. It’s absolutely dark. What will you see when the exterior lights are turned on? Will...
Climb aboard the scientific ocean drilling vessel Chikyu for a tour of this state-of-the-art research ship.
Thousands of seamounts—most of them undersea volcanoes—tower above the muddy seafloor. They provide something hard to come by in the deep ocean : a solid surface to cling to. This photo gallery shows...
This 3-D colored map of Chapman’s Reef—a deep-sea coral reef near Florida—was produced in 2005 with multibeam sonar technology from an autonomous underwater vehicle (AUV). Explore more in the...
Geophysicist Jian Lin of Woods Hole Oceanographic Institution and chief U.S. scientist aboard the Chinese oceanographic ship DaYang Yihao studied the earthquake site that triggered 2004’s Indian...
Smithsonian curator of fossil marine mammals Nick Pyenson and a team of collaborators are heading into Chile's Atacama Desert , shown here. They'll study a rich bonebed of fossil marine vertebrates...
Discover some amazing corals in this footage that shows and identifies a range of deep-sea coral species from the Juan de Fuca Canyon off the Olympic coast and the Davidson Seamount, an underwater...
A variety of corals colonize the rocky surface of Manning Seamount, part of the New England Seamount Chain located in the Atlantic Ocean just off the coast of Cape Cod, Massachusetts. This photo was...
The United States Geological Survey (USGS) keeps track of earthquake locations and magnitudes, accessible on the USGS website . Modern recording equipment has been in use since about 1900. While this...
On August 23, 2011 a 5.8 earthquake emanated from the little-known Central Virginia Seismic Zone. The epicenter was near Mineral, VA, but the tremor shook homes, schools, and office buildings in...
There can be catastrophic results when a large amount of oil is spilled into the ocean—as when the Deepwater Horizon rig exploded and spewed oil into the Gulf of Mexico in 2010. But did you know that...
The New England Seamount Chain is the longest in the North Atlantic Ocean. It includes more than 30 major volcanic peaks. Seamounts provide a solid surface for corals and other marine animals to...
If you want to explore the depths of the ocean, you may want to go to the deepest part: the Mariana Trench. This trench has a maximum depth of 11 kilometers (around 7 miles) and is almost five times...
You are not alone if you don’t know what forams (short for foraminifera) are, so let’s start with the basics. Simply put, forams are single-celled organisms related to the familiar amoeba that...
These star-shaped grains of sand, collected from southern Japan, look like miniature works of art -- but they were not sculpted by an artist. They are the shells of microscopic organisms called...
On the deep seafloor of the Gulf of Mexico, ecosystems made up of fish, corals, sea stars, anemones and other invertebrates flourish. Since the sun’s rays don’t reach the deep sea, coral communities...
An archaeologist arranges a deep-sea core from off the coast of Britain. These cores are long cylinders of the earth's crust, drilled up from beneath the seafloor. When the cores shown here are...
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