The US Navy's Undersea Rescue Command has a mission: To rescue sailors of all nations during a submarine casualty. Take a tour of its impressive training center in California.
We go on board the new Eurostar -- the latest train running under the sea between England, France and beyond.
Nathaniel Stern dives beneath the sea armed with DIY photography rigs toggled from custom electronics. The artist's results? Bizarre and beautiful.
The 31-day expedition at the Aquarius lab turned a spotlight on the wonders of the underwater world, inviting landlubbers to follow along in real time.
Fabien Cousteau and crew are set to surface after 31 days underwater. Get a glimpse of their aquatic life -- including encounters with goliath groupers and even a "vampire."
Who would live underwater for weeks at a time -- and in view of the public? Get to know Fabien Cousteau and his crew doing it for science, bragging rights, and, uh, the freeze-dried food.
Hundreds of families of Americans missing in action in Palau since World War II have long wondered what happened to their loved ones. Now cutting-edge oceanographic technology is helping find answers.
Jacques Cousteau’s grandson will lead a team of aquanauts on a 31-day mission to live and work at the world’s only undersea lab. And you can watch it all unfold in real time.
The new 100Gbps fiber-optic link will open up international communications for 15 telecommunications companies and protect against severed cables or other problems.
The new underwater panoramic views not only reveal the beauty beneath the sea but also call attention to the damage being done to Earth's oceans by climate change, pollution and overfishing.