Nobody discusses how slow the response had to be when the Titan submersible went silent on June 18, 2023, somewhere in the darkness above the Titanic wreck. The closest port was 420 nautical miles away from the ship. The search area was about twice as large as Connecticut. The equipment had to be transported by ship and then dragged in lawnmower lines across the water. Four days later, a remotely operated vehicle discovered a debris field. Four days is considered short for a search area by scientists. A team at MIT Lincoln Laboratory and the MIT Ocean Science and Engineering…
Author: Derrick Lester
The fact that the most sophisticated ocean-monitoring technology in the world was essentially based on a design blueprint created during a world war for about eight decades is quietly amazing. For longer than anyone seems to have given it much thought, the iconic yellow hull, the X-shaped mast protruding skyward, and the recognizable silhouette bobbing on open water defined marine observation. Up until now. Recently, a massive orange disc weighing nine tonnes and measuring six meters in diameter settled into the waters off the eastern coast of China’s Shandong province, formally joining the Yellow Sea observation network. The platform, which…
The disparity between our actual knowledge of the ocean and its importance is almost embarrassing. Roughly 71% of the planet is covered by water. Most of the oxygen we breathe comes from it. It supports a global economy valued at well over a trillion dollars and provides food for billions of people. Nevertheless, only 15% of the seafloor has been mapped using contemporary techniques. Human eyes have never seen more than 5%. The ocean is still remarkably obscure for something so essential to life on Earth; in some ways, it is even less understood than the surface of Mars. A…
The salmon run occurs every June. On their way back to the rivers where they were born—the Yukon and the Kuskokwim, streams whose names most Americans couldn’t find on a map—they push north through the chilly Pacific, navigating the slender passes between the Aleutian Islands. It is one of the more traditional rhythms in North American culture. Additionally, witnessing its breakdown in real time is something that is difficult for those who rely on it to translate into policy language or court filings. Charlie Wright spent decades downstream in Tanana after growing up in the Yukon River village of Rampart.…
When a cube of seafloor mud is brought onto a ship’s deck, run through a sieve, and found to contain something no one has ever seen before, it is a strange moment in deep-sea research. It’s not particularly dramatic. It’s silent. It was a spindly, pale creature sitting in a tray of sediment, completely unaffected by the fact that it had just completely disrupted someone’s conception of life on Earth. The scientific community is only now starting to consider the implications of that moment, which has been occurring more frequently lately. Numerous previously unidentified crustacean species have been discovered over…
In engineering, there is a point at which a proof-of-concept ceases to be theoretical and becomes something completely different. Something tangible and significant. That’s essentially what happened in late April when Cellula Robotics, based in Burnaby, British Columbia, announced that its Envoy autonomous underwater vehicle, which was powered solely by a hydrogen fuel cell system, had finished a fully submerged mission covering 2,023 kilometers over 385 continuous hours. Not a single surface. No recuperation. There is no human hand behind the wheel. For comparison, the approximate driving distance between New York and Miami is 2,023 kilometers. However, this vehicle completed…
The ocean has been doing the work for billions of years, long before humans had any idea of climate or thermostats. It absorbs heat, moves it around, releases it gradually, and silently prevents the planet from swinging between extremes. Scientists occasionally find it difficult to explain how life on Earth depends on this system’s ongoing operation because it is so vast and fundamental. The ocean is now displaying indications that even its enormous capacity has limits after decades of absorbing the effects of industrial civilization. The figures are truly astounding. Since the Industrial Revolution, the ocean has absorbed about 90%…
A tiny poisonous snail is going about its ancient business somewhere beneath the coastal waters off Florida, at depths most people will never see and few researchers have thoroughly investigated. It shoots barbed hooks into fish, releases clouds of paralyzing chemistry into cold, dark water, and apparently produces molecules that pharmaceutical scientists are now frantically trying to obtain. The organism is the Asprella lineage of cone snails, and the substances concealed within its venom gland have emerged as one of the more genuinely surprising tales in modern drug research. It’s important to consider how uncommon this circumstance is. For hundreds…
The thought of an ocean having difficulty breathing is subtly unnerving. Over 70% of this planet’s surface is made up of water, and for the majority of human history, its depths seemed limitless—unknowable, yes, but essentially stable. This assumption is currently undergoing an uncomfortable real-time revision. The ocean is losing oxygen more quickly, more deeply, and in more locations than the models predicted, rather than slowly and neatly as some early predictions suggested. For years, the numbers have been increasing. The global ocean has already lost about 2% of its oxygen since the 1960s, which is about twice as much…
Tracking an unmanned, solar-powered boat as it passes Wake Island in the middle of the night, thousands of miles away from anyone who built it, has an almost surreal quality. When Seasats, a San Diego-based maritime company, sent one of its Lightfish autonomous surface vessels from California toward Japan last year, anyone with a browser could watch the entire event in real time. The ship was 350 pounds in weight. It measured twelve feet in length. It traveled over 7,500 miles in 150 days. No human ever set foot on it. The Lightfish can run for months without going back…
