Unlocking the Deep: How the U.S. and Portugal Are Revolutionizing North Atlantic Research

Standing on the deck of a research ship in the middle of the Atlantic and truly realizing that the water below you drops for miles is a disorienting experience. In addition to being deep, the ocean floor in this region of the world is mostly unexplored. Compared to the seabed between the American coastline and the Azores, a larger portion of the moon’s surface has been mapped. It’s an odd fact to accept. Nevertheless, something appears to be changing following years of inadequate funding and sluggish bureaucratic momentum.

The region’s approach to deep-sea research has changed as a result of a deal announced in April 2026 that included a formal long-term scientific collaboration in the North Atlantic and a €4.3 million transfer of advanced marine robotics. There is more to the agreement than just equipment. It has to do with the kind of scientific trust that takes years to develop and often yields the most unexpected outcomes. For over a decade, Portugal has been subtly preparing for this occasion. Its exclusive economic zone extends well into the Atlantic, making it one of the biggest in Europe. However, as one geopolitical analysis pointed out bluntly, it has remained largely underutilized for the majority of that time.

At the heart of it all are the Azores. geographically, metaphorically, and more and more scientifically. Not too long ago, a 286-foot research ship named the OceanXplorer sailed out from those verdant, volcanic cliffs into open waters on a warm June morning. Shark biologists, deep-sea ecologists, robotics engineers, and two University of the Azores scientists, Jorge Fontes and Pedro Afonso, who had spent years creating camera tags for tracking sharks in their natural habitat, were among the nearly seventy individuals on board. In part, the mission was cinematic, which is why it sounds that way. However, it was also a truly serious science.

The bluntnose sixgill shark, a slow, enormous Jurassic-era animal that spends its days in almost complete darkness at a depth of 1,800 feet below the surface and drifts upward at night to feed close to underwater ridgelines, was the target. In its natural habitat, no one had ever tagged one that deep. Afonso and Fontes had the gadget that could enable it. They had no assurance that it would be successful. And it appeared as though it might not for a considerable portion of those night dives, crammed into a three-person bubble submersible with cameras everywhere.

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It was difficult to stage the reaction in the ship’s mission control room when Fontes finally pressed the button and the arrow hit its target. Relieved rather than ecstatic. Unexpectedly, the tracker’s data revealed that the sixgill wasn’t hunting as anyone had anticipated. Short upward bursts consistent with ambush behavior were observed in its telemetry. However, upon viewing the actual video, researchers noticed that the shark appeared to pin prey against the seafloor, swung its tail, and inverted. The eyes and the instruments conveyed two distinct narratives. The main reason this type of research is important is because of this tension.

In a sense, Portugal has always recognized this conceptually but hasn’t fully implemented it. Launched about a generation ago, its strategic reorientation toward the sea has begun to yield tangible results. Four marine-focused institutions have been seeded by the Collaborative Laboratories (CoLAB) system, which was created to transfer knowledge between academia and industry. GreenCoLAB tackles algal biotechnology; S2AQUAcoLAB builds sustainable aquaculture; B2E works the blue bioeconomy angle; and +Atlantic focuses on ocean-based economic activity. These have a direct connection to the All-Atlantic Ocean Research and Innovation Alliance, which convened in Salvador, Brazil in April 2026, where its high-level board announced the winners of an Atlantic photo competition and published a formal outcomes summary. These are small cultural gestures that reveal something genuine about how a scientific community develops its identity over time.

Research on the ocean can seem abstract. Images of a sixgill at the edge of the light or deep-sea coral at 3,000 feet have an effect on people that policy documents just cannot. Hedge fund billionaire Ray Dalio and his son Mark co-founded the American nonprofit OceanX, which based its entire business strategy on that reasoning. With over four million TikTok followers, it’s difficult to argue that the strategy isn’t effective.

It’s still unclear if funding will keep up with the enthusiasm at the rate that scientists truly require. Since its inception at the first UN Ocean Conference in 2017, the seafloor mapping project has expanded from mapping 6% of the seabed in high resolution to 25%. That is real progress. Simply put, it serves as a reminder that 75% of the floor is still unknown. Researchers like Vincent Pieribone of OceanX, a professor at the Yale School of Medicine, have begun to make a more compelling argument: the ocean is crucial for both ecology and medicine. Marine life compounds are being studied as antivirals, antibiotics, and even building blocks for synthetic bone. Before they can be cataloged, species that may contain those compounds are going extinct.

There’s a sense that something is finally catching up to itself as we watch this U.S.-Portugal partnership grow. For many years, the Azores, a volcanic archipelago situated above active seamounts within one of the Atlantic’s most biodiverse corridors, have served as a natural laboratory. The infrastructure that corresponds with the location is now being delivered. It depends on factors that no one can completely control whether this turns out to be the golden age of ocean exploration, as some in the field are quietly predicting. However, the real science usually occurs somewhere between what the instruments say and what the eyes actually see.