Oct 7 2009 - 4:08pm
Under a watchful raven’s eye, this handmade Tlingit canoe became a symbol of the ocean and of Alaska’s Native peoples.
Over the course of a year, Douglas Chilton skillfully chipped away at a cedar...
Dec 8 2010 - 1:08pm
This is the world’s first unmanned, underwater robot—or “glider”—to cross an ocean basin, the pioneering Scarlet Knight. The robotic glider, also known as RU27, can dive to depths of 200 meters (660...
Dec 4 2009 - 3:25pm
About 100 million years ago, during the heyday of the dinosaurs, reefs were built by mollusks called rudist clams. They looked very different from today's coral reefs.
Dec 4 2009 - 3:41pm
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...
Dec 17 2009 - 6:55pm
Long before great white sharks appeared, much larger ancestors roamed the ocean. This giant ancient shark -- the Giant Megatooth (Carcharodon megalodon) -- was probably big enough to eat a whale.
Dec 2 2009 - 3:42pm
These Smithsonian field stations enable scientists worldwide to conduct long-term studies on mangrove ecosystems from a range of latitudes.
Jun 9 2011 - 9:23am
What happens to deep-sea coral samples after they are collected? In this image gallery, see some of the ways ocean scientists sort, measure, photograph, and study them. Learn more in the...
Feb 8 2011 - 5:37pm
What can students do to help the ocean? It turns out, a lot! These students from across the United States and Mexico are developing action plans on ocean and climate-related issues in their local...
Apr 20 2012 - 1:22pm
On April 20, 2010, an explosion on the oil-drilling rig Deepwater Horizon caused the largest marine oil spill in US history, gushing nearly 5 million barrels of crude oil over the course of three...
Oct 14 2010 - 5:10pm
The Hyperbolic Crochet Coral Reef, created by Margaret and Christine Wertheim of the Institute For Figuring, weaves together strands of art, science, mathematics, and conservation. This beautiful...
Sep 20 2011 - 3:30pm
Evidence shows that life probably began in the ocean at least 3.5 billion years ago.
Photosynthesis began more than 2.5 billion years ago—the Great Oxidation Event. But it took hundreds of millions...
Dec 15 2009 - 12:19pm
Coral reefs are beautiful, vibrant ecosystems that house roughly one quarter of all marine species and provide billions of dollars in products and services to humans each year. But they are also...