Underwater

Although Saturn's moon Enceladus and Jupiter's moon Europa both have ice-covered surfaces, oceans may exist beneath that ice. The TRIPLE-nanoAUV 2 project is aimed at getting an uncrewed submersible into those oceans, to search for life.

A UK team has revealed plans to build an incredibly ambitious underwater habitat named Sentinel. Assuming it goes ahead, it could revolutionize deep sea research by allowing scientists to live underwater for extended periods in relative comfort.

Getting glue to stick in dry conditions is relatively easy, but having it maintain a bond underwater is much more difficult. That said, a new bio-based glue not only works underwater, it actually gets stronger when immersed.

Six years ago we told you about the Scorkl, a mini compressed air tank that allows users to breathe underwater for up to 10 minutes. For easier refills, the 2.0 version can now be ordered with an electric air compressor and a "battery pack."

The CEO and co-founder of Triton Submarines takes us through some highlight dives from an extraordinary career, from salvaging the "smoking gun" from the Challenger space shuttle, to filming with James Cameron, to the bottom of the Mariana Trench.

It takes guts to start a company. It takes a lot more guts to start a company manufacturing cutting-edge private submarines. And as Triton's CEO and co-founder explains, it takes even more guts to slap down your money and become the first customer.

2023 is not a great year to be running a submarine company, but we caught up with Patrick Lahey, co-founder of Florida's Triton Submarines, for a three-part chat about a remarkable career with highlights as low as a human being can possibly go.

While we've seen a number of wearable underwater propulsion systems, they've typically been strapped to the user's arms or legs. The CudaJet is different, in that it's a true backpack-style underwater jetpack.

While GPS can be used to determine one's geographical coordinates on land, such is not the case underwater. Scientists have developed an alternative, however, in the form of a system that analyzes the manner in which sunlight is polarized by water.

Underwater scooters are nothing new, although most of them are devices which users must hold in front of themselves. The Seakool D2 is different in that it's worn around the waist, keeping the user's hands free and their view unobstructed.

Oceanbotics' SRV-8 underwater ROV (remotely operated vehicle) is certainly no slouch, nor is its more capable sibling, the SRV-8X. The latest version of the vehicle, the SRV-8 MDV, takes things even further – it blows up sea mines.

Searching for human bodies or other submerged items can be dangerous for divers due to factors such as strong currents, deep waters and low visibility. That's where the Tethys One underwater drone comes in, as it's designed to do the job itself.