Underwater robots are exploring the ocean near Hawaii 🤖🌊

What if a robot could travel deep beneath the waves, map the seafloor and collect information without a pilot sitting inside?

That’s the idea behind an expedition taking place near Hawaii, where researchers are testing autonomous underwater vehicles—robots designed to carry out missions on their own.

From November 2 to 16, 2026, the US National Oceanic and Atmospheric Administration, or NOAA, is testing these machines aboard the research ship Okeanos Explorer. The goal is to learn how the robots could help scientists explore the ocean more efficiently.

Meet the underwater explorers

The expedition is testing a HUGIN 6000 and two smaller Orpheus vehicles. Both types are designed to operate at depths of up to 6,000 meters.

HUGIN carries tools including sonar and a camera. It can follow a planned route while collecting detailed information about the seafloor. The smaller Orpheus vehicles are equipped for closer investigations, including taking images and collecting samples of seafloor sediment.

Why send robots underwater?

The deep ocean is difficult to explore. It’s dark, remote and under enormous pressure. Research ships can map large areas from the surface, but underwater vehicles can travel closer to the seafloor and collect a different level of detail.

The Hawaiian mission is a technology test, not the announcement of a new discovery. Researchers want to understand how these robots can work alongside ships and other underwater equipment on future expeditions.

The ocean still holds many unanswered questions. Machines like these could help scientists get a little closer to the answers.

Source: NOAA Ocean Exploration. Image: AI-generated conceptual illustration of an underwater research robot.