Underwater

In its 17th year the Through Your Lens underwater photography contest continues to deliver an extraordinary assortment of undersea images. This year's highlights include a stunning shot of a shrimp helping clean the teeth of a moray eel.

You can't help but wonder what archaeologists will make of Jason deCaires Taylor's work hundreds of years from now. The British artist's latest thought-provoking project sees the "first-of-its-kind" underwater forest sculpture open in Cyprus.

Even in non-pandemic times, the Great Barrier Reef is still a difficult place for much of the world's population to get to. That's where Teleportal.Fish comes in, as it allows anyone to virtually visit the reef via a live link to an underwater robot.

This new buoyancy energy storage system harnesses a powerful force familiar to anyone who's tried to hold a beach ball underwater, and it could offer grid-scale energy storage cheaper than batteries – as well as super-cheap hydrogen compression.

Blue Abyss Ltd. is building the world's largest and deepest indoor pool in Cornwall. Holding as much water as 17 Olympic-sized swimming pools, it will be used for advanced undersea robotics and as the world's first commercial astronaut training facility.

Despite ongoing advances in the field of underwater remotely operated vehicles (ROVs), the devices have remained tethered to the surface via communications cables. Such is not the case with the ExRay, however, which uses light instead.

The anole lizard may be a popular pet, but here's something that not many people may know: some of the things can breathe while underwater. A new study has confirmed their ability to do so, and explains what makes it possible.

Although there are glues that work underwater, they typically require at least 24 hours to set – which can be tricky in chaotic marine environments. A new additive, however, reportedly allows underwater resin adhesives to set in just 60 seconds.

Scientists at Carnegie Mellon University have spent a number of years developing modular snake-like robots for all kinds of purposes, and the latest adaptation sees its serpent-inspired tech headed underwater.

If you want to gather oceanographic data over long distances, an "underwater glider" is often the best way to go. A novel system from California-based company Seatrec should soon power such vehicles, utilizing the temperature gradient of ocean water.

A stunning shot looking up at a pair of reef sharks during sunset has won the 2021 Underwater Photographer of the Year contest. The spectacular highlighted images this year span everything from surreal undersea wrecks to rare glimpses of little-seen sea creatures.

Even though lifeguards are essential to maintaining safety at swimming pools, they can't always see everything that's happening. That's where a new swimmer-saving underwater robot is designed to come in.