Marine

An adventurous professor from the University of South Florida has broken the world record for living in an underwater habitat. Joseph Dituri has called the submurged Jules’ Undersea Lodge home since March 1, and intends to remain there until June 9.

Paleontologists have discovered fossils from a gigantic marine predator that stalked the Jurassic seas. The creature could have grown to twice the size of an orca, and fed on pretty much anything else unlucky enough to be in the ocean at that time.

In a surprising first, researchers found that scalloped hammerhead sharks act like air-breathing marine mammals, holding their breath to stay warm when they deep-dive into cold water for food and making them vulnerable to humanity's deep-sea exploits.

Belfast-based Artemis Technologies has introduced its latest hydrofoil – an upmarket luxury water taxi called the Artemis EF-12 Escape that promises a comfortable, energy efficient, environmentally friendly way to go island hopping.

The US Navy recently completed tank tests of a new deep-diving suit called the Deep Sea Expeditionary with No Decompression (DSEND) system that is light and flexible, yet maintains sea-level pressure around the wearer when hundreds of feet underwater.

These strangely-shaped twisted-toroid propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, they're also showing some huge efficiency gains.

Snøhetta recently completed an attractive timber maritime center in Denmark. Inspired by wooden boat construction, it's designed to withstand punishing local conditions and lights up pleasantly at night, resulting in its name: the Lantern.

The new Navier 30 adds a little length over the concept that preceded it while offering the same robust range and high-tech design. It has an autopilot system meant to evolve into full autonomy and an active foil system to breeze over 4-foot waves.

Scientists from King Abdullah University of Science and Technology studying tiger sharks have leveraged their far-roaming tendencies to map out the largest seagrass system in the world, by using cameras attached to their backs.

Normally, Sweden building its first new class of submarines in 30 years wouldn't be of as much interest, but Saab laying the keel of its first Blekinge-class boat as Sweden waits to join NATO signals a shift in the balance of power in the Baltic Sea.

Drift Energy puts a different spin on wind power. Instead of creating windmill-derived electricity, its plan sees AI-routed hydrofoil sailing yachts generating electricity for electrolysis. Those yachts would then deliver green hydrogen ashore.

Japan's solar potential isn't great, but it does sit right next to one of the world's most powerful ocean currents – so the country is searching for novel ways to bulk up its green energy generation in the form of giant deep ocean turbines.