nuclear

Looking to reduce fossil fuels in transportation, Hyundai has the solution: a nuclear container ship

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About 80% of world trade is moves by sea. Although it may seem like slower transportation, something key to maintaining prices is moving a large amount of material on each trip, something that is out of the reach of trucks, trains and planes. There, the huge container ships They lead the way with the associated problem of enormous spending on fossil fuels. The industry is looking for alternatives to operate no carbon emissions and Hyundai has a clear path. A nuclear container ship. Pioneer. HD Korea Shipbuilding and Offshore Engineering is the naval branch of the company and, in 2025, they presented a model of container ship nuclear seeking to eliminate emissions of a large ship with electric propulsion powered by a small nuclear reactor. The reactor type would be an SMR with thorium-based fuel and liquid salt as a coolant. After months working on the plan, this 2026 HD and ABS (American Bureau of Shipping) they arrived to an agreement to jointly develop the vessel. This is something that is in the design and subsequent prototype phase, but the agreement between the two lays the foundations for the development of a ship that is expected to be the first nuclear container ship. 16,000 TEU class. The class of a container ship is measured by the TEU, or Twenty-foot Equivalent Unit. Basically, x number of 20-foot-long containers, 16,000 containers at a time in the case of the Hyundai ship. It is far from the 20,000 and 25,000 TEU vesselsbut it will be a step forward in the maritime mobility of the future. Furthermore, the ship will not need to be as massive as others thanks, precisely, to that nuclear propulsion. By replacing the conventional machinery of diesel engines, exhaust systems and huge fuel tanks with a nuclear compartment and electrical systems, there is free space to transport more containers while maintaining the ship’s compact size. Compact within what these monsters are. Armor. To guarantee radiological safety, what this ship must include is a double stainless steel tank shielding system designed to ensure that there are no radiation leaks to both the inhabited areas of the ship and the ocean. The liquid salt itself as a coolant will also act as a safety measure against reactors that require pressurized or boiling water. If SMR stands for ‘Small Modular Reactor‘, MSR respond to ‘Molten Salt Reactor’, and basically means that, in case of emergency, the salt mixture can solidify to stop the reaction, being another security measure. all the sense. For now, the Hyundai ship has received the approval of its partner – an advantage of being the body that is also in charge of these things – but it is a project. The next steps are development and prototype, so there is still no authorization for the construction of the ship. However, it makes perfect sense for container ships to switch to nuclear propulsion. It is something that we have already seen on large ships like aircraft carrier and submarinesand the main advantage (apart from reducing emissions) is that life on the high seas depends solely on how much food can be loaded on board. Obviously, the investment is more expensive initially because it is not cheap to change the mobility paradigm, but it would not be tied to fluctuations in the price of fuel for transportation, something that we have been seeing recurrently in recent years and that, obviously, changes the shipping price. Alternatives. Hyundai is not the only one in this race and its national competitor Samsung also has a project in the oven. China, or Norway, transport heavyweights, They also have concepts of container ships powered by nuclear reactors. In the end, the industry must move because the International Maritime Organization is regulating greenhouse emissions and demanded reductions of 20% by 2030 with the aim of achieving neutrality by 2050. A render of China’s nuclear container ship In that sense, maritime transport not only represents 80% of the transport of all goods, but is responsible for 3% of global CO2 emissions of human origin. Now, nuclear electric motors are not the only way and recently we are seeing that the industry is exploring the path of battery electrification and even the return of a technology that seemed forgotten: the candles. Image | hyundai In Xataka | The West stopped building nuclear power plants because they were too expensive: China is teaching it a lesson

The big problem with nuclear energy has always been its waste. Russia can now recycle them up to five times

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A nuclear reactor operating for 60 years using a closed system of three circulating fuel loads, subjected to cleaning processes and specific recharges in each cycle. What until recently seemed like an unattainable technical utopia for the energy industry is the reality that Russia’s latest technological breakthrough points to. The historic Achilles heel of nuclear fission—radioactive waste—is about to take a radical turn to become an almost inexhaustible resource. The magnitude of the test. The press release of Atom Media explains that Unit 1 of the Balakovo nuclear power plant (operated by Rosatom’s energy division) has just made history. They have successfully removed the last three lead test assemblies from an innovative fuel dubbed REMIX. These groups have completed three operating cycles of 18 months each. We are talking about 54 months performing at maximum capacity in a Russian commercial reactor type VVER-1000, thus exhausting its standard useful life. This puts the finishing touch to a demanding pilot program which started at the end of 2021 when the first six experimental rods were introduced into the reactor core. The resounding success. The most impressive thing about this milestone is not just that the fuel works, but where it works. Unlike other experiments designed for new generation fast reactors, REMIX fuel can be used in light water thermal reactors already operating massively around the planet. And without the need to modify its design or add costly security measures. The rehearsal went flawlessly. Yuri Ryzhkov, deputy chief engineer of the Balakovo power plant, detailed: “After each cycle, the fuel rods and structural elements were inspected using the television camera of the refueling machine. No deviations were detected during operation; neutron, physical and service characteristics remained within the design limits.” The science behind REMIX. But what exactly is this material? REMIX comes from Regenerated Mixture (Regenerated Mixture). Instead of using the usual natural enriched uranium, Russian scientists have created a matrix pellet that mixes regenerated uranium and plutonium (both recovered from already spent and reprocessed nuclear fuel), seasoned with some fresh enriched uranium. The technical key to the process is in the proportion: it maintains a very low level of plutonium, up to 1.5%. Thanks to this exact formulation, its neutron spectrum is practically identical to that of standard fuel. For practical purposes, the reactor core behaves the same and does not even “notice” the difference. The cleaning process. It is the circular economy taken to the atomic extreme. The magazine World Nuclear Newyes explains that this recycling cycle can be repeated up to five times. With each pass, the industry reprocesses the material to separate the useful uranium and plutonium from the fission products, which constitute the true radioactive waste. This useless waste is extracted and vitrified (encapsulated in glass) to be permanently and safely buried in geological deposits, while the useful fuel mixture is reintroduced into the reactor. The vision of the balanced cycle. Now it’s time for the laboratory and certification phase, where the irradiated material, now resting in cooling pools, will travel to the Atomic Reactor Research Institute in Dimitrovgrad for exhaustive analysis. Alexander Ugryumov, Vice President of R&D at TVEL (Rosatom’s fuel subsidiary), He announced that after these studies They will be able to bring the product to the market. The next evolutionary step will be to test mixtures with depleted uranium and up to 5% plutonium. All this is part of what Rosatom has called the “Balanced Nuclear Fuel Cycle” (NFC). The goal is to drastically reduce the volume and danger of radioactive waste, solving the historic problem of long-term storage for future generations and guaranteeing a truly sustainable production system. An impact on a global scale. Although the technical success is undeniable and the operational milestone in a commercial reactor is demonstrated, the mass adoption of this technology on a global level will largely depend on the commercialization costs and the economic viability of large-scale reprocessing; factors that the industry must demonstrate after the current qualification phase. However, if Rosatom manages to market REMIX at competitive prices, the global energy situation could take an unprecedented turn. We are not talking about a niche experiment. The data provided by Atom Media illustrate this magnitude: TVEL currently supplies fuel to more than 70 power reactors in 15 countries. Today, one in six reactors in the world operates with its technology. Moving from a linear “use and bury” industry to a closed loop where nuclear resources have multiple lives would not only dramatically expand the planet’s energy reserves, but could forever redefine the ecological viability of nuclear energy. Image | atom Xataka | The US has to make a crucial decision in Iran: exit without destroying its nuclear capabilities or a terrestrial “armaggedon”

for whatever reason, it resists nuclear explosions

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China has just landed a project that has been on the table for a decade: that of the first floating island of deep sea research of the world. It looks like an oil well, but it is actually a megastructure that is prepared for everything. And, when we say “everything,” we include the end of the world. Because it is a research center, but also a command center and a nuclear bunker. And it has already raised concerns about possible dual use by China. In short. A few months ago we echoed the China’s plan to formalize this project that has been in the oven for years, but that has not materialized. It was now when, according to the state channel CCTV Newsthe country will begin the final phase of design and construction of the platform. The name by which it has been known until now is the “Deep-Sea All-Wather Resident Floating Research Facility”, and it will basically be a facility that can do everything. The installation. Jio Tong University in Shanghai is in charge of the bulk of the project, a platform that will have a double twin hull of 78,000 tons and scandalous dimensions. We are talking about 138 meters long, 85 meters wide and a main deck located 45 meters from the waterline. He Fujianthe brand new new generation aircraft carrier from China, has a displacement of 80,000 tons. To contextualize. It is semi-submersible and, from the University, they have detailed that it will come to fill a gap that they have detected in the country’s arsenal: that of a research facility that can navigate quickly and remain in an area of ​​operations for prolonged periods. “And, if it reminds us of an oil well, it is because they have been inspired by those facilities, they have combined the design with that of the research vessels and what has come out is… well, what we see in the conceptual image. Investigation. The idea is that the facility can house almost 240 people for months thanks to the backup energy systems and the main objective set out by CCTV News and Jiao Tong University is to explore deep waters and serve as a research field. mining system testingoil and gas prospecting, as well as research into that unexplored ocean floor. Bombproof. But there is a twist. The structure is designed to be a fortress capable of withstanding nine-meter-high waves and category 17 typhoons, the highest for this type of cyclones. It is normal since it will be in areas where the hull can suffer, but what is no longer so normal is that the armor has been designed to resist nuclear explosions. Instead of conventional steel armor, the walls of the complex will be like a sandwich with several layers that will dissipate the shock wave from a nuclear explosion. For construction, it is proposed to use a metamaterial that, under pressure, compresses to create a denser structure than thicker steel panels. The simulations indicated that these walls will resist more pressure than that of a submarine. And that, together with the fact that it will have a command center, has raised some doubts about the possible dual use of the facility. Mapping the terrain. Because the ocean floor has become the new battlefield. We don’t even talk about space, since the United States claims that There has been a war with China and Russia for months for control of space, but the launch of this platform project comes shortly after the publication of some information that reveal how China has deployed dozens of research vessels to map the ocean floor. According to reports published in Reutersdozens of ships have been studying the terrain for years, mapping it and deploying sensors in a strategy to be able to monitor in real time data such as water temperature, salinity, the best prospecting areas and… also everything that moves in that territory. From the United States it has already been raised the voice pointing out that these civilian research vessels “can” collect military intelligence, which represents “a strategic concern.” This systematic mapping, for some military analysts, has a single objective and it is not to find oil wells: it is to erode the advantage that the United States had in the oceanic battlefield.” And a facility like the one they are now preparing with their sights set on 2030 can be a true marine fortress. Image | SJTU In Xataka | Japan has dozens of “forgotten” islands off the coast of China: it is now preparing for the worst scenario

We wanted electric cars and solar panels. The Hormuz blockade has returned us to the era of coal and nuclear energy

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The Third Gulf War has caused what decades of climate summits tried to avoid: the effective closure of the Strait of Hormuz has erased 20% of the world’s supply of oil and liquefied natural gas (LNG) in one fell swoop. Faced with the imminent threat of a large-scale blackout, governments around the world have put their energy transition plans in a drawer. However, to keep the lights on and the economy afloat, the immediate response has been to look back to the past: burn coal by the piece and resurrect nuclear power. The mirage of “bridge fuel.” Asia buys more than 80% of the crude oil and gas that transits through Hormuz, but the problem goes far beyond a simple ship jam. This crisis has destroyed one of the great pillars of the energy transition. As explained The New York TimesLiquefied Natural Gas (LNG) was sold during the last decade as the perfect “bridge fuel”: less polluting than coal, more reliable than intermittent renewables and capable of being transported by sea to any corner. That bridge just blew up. The damage is far from being repaired, and it is estimated that the infrastructure attacked It will take years to operate again. Added to this is that Iran has turned the Strait of Hormuz into a kind of maritime “VIP discotheque”deciding by hand which ships can cross. No one can depend on LNG ships to guarantee their sovereignty. The main problem: live without pantry. But there is a technical factor that has turned this crisis into an immediate catastrophe: lack of storage. Unlike the West, most Asian countries lack underground gas stores, leaving them completely exposed to supply disruptions. While nations like South Korea can last up to 52 days and Japan about three weeks, Taiwan walk on a wire extremely fragile, with a legal security threshold of just 11 or 12 days of reserves. Without a “pantry” to store the LNG, Asia has no room for maneuver: if the ship does not arrive on Monday, the blackout begins on Tuesday. This structural vulnerability is what has forced an unconditional surrender to coal. Coal’s dirty lifesaver. As Jonathan Teubner, the aforementioned analyst, perfectly summarizes by Financial Times: “No coal ship passes through the Strait of Hormuz.” That is the key to everything. Being a cheap, abundant resource that does not depend on the troubled waters of the Middle East, the most polluting mineral has returned with a bang. According to FortuneSouth Korea has removed the 80% operational cap for its coal plants, a decision that has drawn the ire of environmental groups who accuse the government of using “energy security as a pretext.” Thailand, for its part, is restarting plants it had dismantled last year. From Seoul to New Delhi: the dilemma of the powers. Japan, one of the world’s largest gas importers, has also bowed to the evidence, allowing its least efficient coal plants to operate at full capacity for a year. Energy desperation is such that in Japan There are already voices demanding cancel the emissions trading system, calling it a “death sentence” for the coal plants they now need to survive. In India, the situation is critical. Prime Minister Narendra Modi has warned of a “major challenge” ahead of the summer. To avoid massive blackouts, New Delhi has commanded giants such as Tata Power and Adani Power operate at full capacity, while Bangladesh seeks multi-billion dollar loans. Sam Chua, analyst at Rystad Energy, sums it up in Financial Times: We are not seeing a transition, but a brutal “destruction of gas demand.” Although it is not that simple: the money wall. This coal revival has a glass ceiling. As experts point out in Japan Timesthe banking sector flatly refuses to finance the construction of new coal plants for fear of being left with “stranded assets” (stranded assets) in the face of global climate commitments. That is, countries are squeezing their dirty old infrastructure to the last drop, but they can’t build new ones. Charcoal is the assisted respirator, but not the cure. The atom as a shield: the great redemption of uranium. Panic too has broken atomic taboos. Taiwan, whose government promised a “nuclear-free homeland” in 2016, has announced plans to restart two decommissioned reactors. The Philippines has charted a fast track to atomic energy by 2032, and Vietnam has just struck a deal with Russia to build its first reactors. Uranium is no longer seen as a threat, but rather as the only way to protect the electricity supply against maritime blackmail. The domino effect reaches Europe. What started as an emergency solution in Asia is already infecting the West. The crisis has forced the European Union to break its own historical taboos, admitting that Europe committed a “strategic mistake” by moving away from atomic energy. Brussels has already put 200 million euros on the table to develop Small Modular Reactors (SMR) by 2030. This shift shows a continental fracture: while France entrenches itself protecting its nuclear investment of 300 billion euros and blocks energy interconnections with the Iberian Peninsula, Europe assumes that it cannot guarantee its future solely with the sun and the wind. War rationing in the 21st century. While the plants uproot, the daily suffocation hit the streets. Philippines has declared a “national energy emergency.” In South Korea, the government implores families to take short showers and Samsung has prohibited its employees from driving to work based on the license plate. In Thailand, officials operate with work weeks for four days and they are prohibited from wearing ties in order to raise the temperature of the air conditioning. The collapse is so severe that Thai ambulances have taken to Facebook to beg gas stations to reserve diesel for them to save lives. The collateral damage. The scope of this blockage transcends the electricity bill. If the conflict lasts until June, Bloomberg alert that the barrel could touch $200, a price designed to cause “demand destruction.” This would lock global inflation at a chronic … Read more

China is giving an overwhelming lesson in nuclear power plant construction to the rest of the planet

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The time it requires the construction of a nuclear power plant From the moment the concrete is poured until the moment it is connected to the electrical grid, it takes between 15 and 19 years in the West; between 7 and 9 years in Asia and the Middle East; and 6 to 10 years in India and Russia. And the total cost of the project usually ranges between 24,000 and 60,000 million dollars. Barakah 4 nuclear power plantin the United Arab Emirates, has four nuclear reactors, took 9 years to build and cost $24.4 billion. On the other hand, the nuclear plant Hinkley Point Cin the United Kingdom, clearly illustrates the execution problems faced by some Western nuclear projects. After several delays Its first reactor will come into operation at best 13 years after the start of construction of the plant. And its final cost will exceed 50 billion dollars. At an intermediate point, Vogtle Unit 4 is established, in the US, which has taken 11 years to be operational and has cost about 35 billion dollars. As can be expected, the number of reactors and the technology they use have a profound impact on the cost of the plant and the time that needs to be invested in its development. Even so, as we have just seen, construction costs and time vary greatly from one region of the planet to another, especially if we introduce China into the equation. And in this scenario the country led by Xi Jinping is unbeatable with a average construction time of 6 years per nuclear plant and a cost of $2,500/kW compared to the 10-year average and almost 8,500 dollars/kW for the rest of the planet. China’s recipe is the most competitive Shangwei Liu explains clearly in the article you published on the website of the Roosevelt Institute what is the strategy that China has devised to reduce the cost and time invested in the construction of its next-generation nuclear power plants. Its plan is based on two pillars: the reconstruction of the supply chain and economies of scale. To a large extent, China’s success is due to the fact that it has managed to create a national supply chain that is immune to the ups and downs and instability of the international market. In addition, it has a lot of qualified labor in all links of its supply chain. There is only one country on the entire planet capable of approaching China’s numbers in this complex and demanding scenario: South Korea. On the other hand, the economy of scale that has given China so much joy in a very wide range of markets also has a place in the production of the components required by nuclear plants. Furthermore, when replacing components manufactured abroad by local elements This Asian country managed to drastically reduce costs during the first decade of this century, and stabilize them during the last decade. However, there is another factor that works in China’s favor and that we cannot ignore: its coordinated industrial policy and stable regulatory framework allow it to carry out long-term planning. There is only one country on the entire planet capable of approaching China’s numbers in this complex and demanding scenario: South Korea. Its latest nuclear plant projects show a cost of between 3,500 and 4,500 dollars/kWwhich places it close to China, with 2,500 dollars/kW, and well below the average of 8,500 dollars/kW for the rest of the planet. This achievement is the result of approaching nuclear energy as an industrial assembly line and not as a set of isolated engineering projects. Again, economy of scale makes the difference. The US numbers are much less favorable. And the total cost of its latest nuclear plants exceeds $15,000/kWalthough presumably this figure will moderate until it barely exceeds the $10,000/kW in future projects. If Western countries want to drastically reduce their costs and moderate the time it takes to construct their nuclear power plants, they will necessarily have to look towards China and South Korea. The reconstruction of their supply chain is essential, and, in addition, they will have to resolve the crossroads posed by the commitment to large reactors, or by compact modular reactors. At the moment there are no other options on the table. Image | Generated by Xataka with Gemini More information | Roosevelt Institute In Xataka | The future of energy is floating in the Arctic: Russia’s ace up its sleeve is a nuclear plant

drones attacking North Dakota nuclear bases

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The United States’ nuclear strategy has long been based on the so-called “triad”a system that combines submarines, land-based missiles and bombers to ensure responsiveness even in the worst possible scenario. The model, designed in the middle of the Cold War, assumed that the continental territory was practically inaccessible to direct threats, which allowed the defense to be concentrated abroad and not so much on protecting each installation within the country. Until the drones have arrived. An unprecedented attack on the nuclear heart. What happened, according to what they said several analystsis that while the United States bombs Iran in its large-scale operation, something completely unexpected is happening within its own territory. Drone waves They have flown over key bases linked to the US nuclear arsenal. Apparently, these were not isolated incidents or improvised devices. They were coordinated incursions, repeated attacks for days that have forced stop critical operations and activate emergency protocols. For the first time, in the middle of a war, strategic installations on American soil were directly affected by a persistent aerial threat. Barksdale, the critical point. The most striking case occurred in the Barksdale Air Force Baseone of the pillars of the United States nuclear system. Strategic bombers operate there and long-range missiles are stored, making the facility a key node within the country’s deterrence capacity. For several days, the swarms of drones They have flown over the base in organized waves, forcing interrupt bomber sorties who participated in the attacks on Iran. The scene, more typical of a movie, has been difficult to ignore: while the B-52s prepared to project force thousands of kilometers, the airspace above their own runways was committed. Advanced drones. The most worrying thing was not only the presence of these drones, but its technological level. They counted on ABCNews that the devices showed a remarkable resistance to electronic interference, used variable entry and exit routes and operated in dispersed patterns that made them difficult to track. In fact, countermeasures designed to neutralize these types of threats they didn’t work as expected. This suggests that these are not tailored trading systems, but rather platforms much more sophisticatedcapable of operating with partial or total autonomy and collecting information in highly protected environments. More than a physical threat. There is no doubt, these drones not only represent a risk for Washington due to their potential attack capacity, but also due to the type of information that they can get. When flying over critical facilities, they can map electronic emissionsidentify operating patterns and photograph sensitive infrastructure. In other words, they can build a detailed portrait of how a strategic base works from within. And this opens the door to much more precise and effective future attacks, as it turns each raid into a highly valuable reconnaissance mission. Structural vulnerability in national territory. They remembered on TWZ that the raids are not limited to a single point or a specific moment. They have registered similar episodes at other key bases, including strategic bomber-related facilities and advanced technology development centers. In many cases, these infrastructures they lack systems adequate air defense systems against drones, which forces us to rely on improvised or developing solutions. What’s more, even with new tools deployed, the ability to neutralize these threats remains limited and uneven. The strategic paradox. The contrast is more than evident. The United States maintains an unprecedented global military capability and can project force virtually anywhere on the planet. However, at the same time, shows difficulties to fully protect sour own facilities against relatively small, but technologically advanced threats. This paradox reveals a mismatch that already we saw in Ukraine and now in Iranone between traditional defense architecture and new forms of warfare, where cheap and difficult to detect systems can generate disproportionate effects. Paradigm shift underway. In short, what happened, for unpublishedpoints to a deeper transformation in the way military security is understood. Not even the bases, silos and strategic infrastructures of a superpower like the United States can considered safe spaces by the mere fact of being in national territory. Because the combination of advanced drones, sensors and electronic warfare is taking the conflict directly to the heart of powers. And that implies, or opens the disturbing possibility, that the next great battle will not only be fought abroad, but also in the ability to protect what until now was taken for granted. Image | USAF, Airman 1st Class Benjamin Gonsier In Xataka | Iran has turned Hormuz into the entrance to a VIP nightclub. And Spain enters the guest list and the US stays at the door In Xataka | Iran and Russia had been silently exchanging drones and material in the Caspian Sea for months: Israel has just revealed it

Nuclear waste is a problem, so Germany is looking for the solution in a Jurassic rock in Switzerland

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Nuclear energy is capable of generating clean electricity, continuously and in large quantities. A marvel except for two small details: the risk of a possible leak and what to do with its waste. The most widespread solution is bury them in a nuclear cemetery and wait. How much? Well, it depends, but it could be hundreds of thousands of years, until they are no longer dangerous. The million dollar question is where. An international research team led by Germany has started to drill a hole in a Swiss mountain to try to answer it. The project. Her name is DEBORAH (Deep borehole to resolve the Mont Terri Anticline Hydrogeology), stands for deep drilling to understand the hydrogeology of the Mont Terri anticline and is exactly what it does. Your goal? Document in great detail the layers that exist and their properties. There is some especially interesting material: Opalinus Clay. This deep experiment involves the German Geosciences Research Center GFZ and the German Federal Institute for Geosciences and Natural Resources (BGR), the Nuclear Waste Service (NWS) of the United Kingdom and Swiss researchers from the University of Bern. Why is it important. Because it can be the ideal rock to build a radioactive waste deposit. As details GFZSwitzerland has already made the decision, but Germany and the United Kingdom (the other parties to the project) have not yet. The key is what the analysis of the drilling says: details such as how much water it allows to filter, at what speed or where it will be key to making the decision. It is not trivial: a leak, no matter how slow and small, can contaminate aquifers. What’s special about it. The Opalinus is a clay rock dating back to the Middle Jurassic, with an estimated age of approximately 175 million years. Simply put, it is clay that has been compacted into rock. And it has a property that makes it a good candidate for nuclear storage: its very low permeability. Context. The study of Opalinus is not new by any means: GFZ’s on your radar for 30 years because, in addition to its very low permeability, it has properties such as its plasticity (under pressure, warps instead of breakingsomething convenient if it works as a radioactive deposit) or its ability to retain certain radionuclides. Switzerland has already chosen it, but it remains to be known how it behaves under the conditions that exist in much deeper areas, where, for example, temperature or pressure change noticeably. How they do it. In the Swiss canton of Jura, near the municipality of Saint-Ursanne, there is that Mont Terri. In its bowels there is an underground laboratory that is accessed through the security gallery of a highway tunnel, about 150 – 200 meters underground. A drilling platform works continuously there, advancing meter by meter, until reaching a depth of 800 meters. The drill uses a hollow crown that allows extracting intact rock columns, the sample that is later analyzed in the laboratory. Each advance works as a witness insofar as it reveals the age, the composition, the fractures and the differential quality: how it behaves with water. In addition, they use seismic and gravimetry techniques to obtain a complete x-ray of what is hundreds of meters deep. In Xataka | Ships have been damaging the oceans with noise for centuries. Germany is working on silent propellers to solve it In Xataka | 700 tons of nuclear waste have arrived in Germany from England. The Germans are not entirely happy Cover | Ilja Nedilko and Evangelos Mpikakis

They are going to begin the most ambitious nuclear fusion experiments in history

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The largest experimental reactor of this type tokamak for nuclear fusion that exists is called JT-60SA and it is in Naka, a small city not far from Tokyo (Japan). The construction of this mill began in January 2013, but it was not done from scratch; he did it taking the JT-60 reactor as a starting pointits precursor, a machine that came into operation in 1985 and that for more than three decades has achieved very important milestones in the field of fusion energy. The assembly of the JT-60SA was completed in early 2020, and from the end of 2023 it is ready to start the first tests with plasma. This machine is a device tokamak that just like JET and the future ITER resorts to the magnetic confinement of the ionized plasma. Although the ultimate goal of fusion is to use deuterium and tritium, JT-60SA initially uses only deuterium for its experiments, as it is not designed to handle the high neutron loads of tritium (that will be an ITER task). Either way, this machine is titanic. Colossal. In fact, it has a height of 15.4 meters and a diameter of 13.7 meters. However, the most impressive are the “specifications” that allow us to form an idea about its performance. And it is capable of confining a plasma with a volume of 130 m³, as well as generating a toroidal magnetic field of 2.25 Tesla and sustaining a current inside the plasma of 5.5 MA (5.5 million amperes). These figures are impressive, and presumably when ITER is ready to begin the first plasma tests its figures will be even more astonishing. An engineering prodigy During the last two years, the Japanese and European engineers working on the JT-60SA reactor have installed several extraordinarily sophisticated systems in this machine that will play a leading role during the next experiment campaign. One of these systems is made up of two ring-shaped coils 8 meters in diameter that have been expressly designed to control the confinement of the plasma that is moving at very high speed inside the vacuum chamber. An amazing note: these two devices were wound directly inside the reactor. However, another of the technological solutions that these engineers have installed in the reactor in recent months is even more amazing. Every time the researchers who operate this very complex machine carry out an experiment with it They need to know with maximum precision possible temperature and electron density of the plasma. The main problem they face is that it is not possible to obtain this data by taking direct measurements. The interaction between the laser and the plasma is what allows engineers to indirectly calculate temperature and density For the fusion of deuterium and tritium nuclei to take place, the plasma containing them must reach a temperature of at least 150 million degrees Celsius, and any sensor that comes into contact with it at this temperature will not survive. This is why the JT-60SA reactor engineers have been forced to develop an extraordinarily sophisticated diagnostic system. Thomson dispersion measurement equipment components have been designed and manufactured in Italy, Romania and Japan. Broadly speaking, this device manages to measure the temperature and density of the plasma electrons by analyzing the light it emits with a high-power laser beam dispersed, precisely, by the plasma electrons themselves. In some way the interaction between the laser and the plasma is what allows engineers indirectly calculate temperature and density. The JT-60SA reactor will have two Thomson dispersion diagnostic systems. The core one has been developed in Japan, and the plasma edge one has been devised in Europe. This enormous effort has been worth it. The reactor is almost ready to start the next experiment campaign. All that remains is to carry out a gradual start-up that will allow testing the main systems of this machine, and at the end of 2026 the experiments will begin. They will last for six months. Most impressively, this campaign will take the JT-60SA to an unprecedented level of current, enabling longer, steady-state plasma pulses to be sustained. The researchers operating the reactor are confident that everything they will learn during these experiments will be very valuable in bringing the future ITER to a successful conclusion. Let’s hope that the performance of the JT-60SA will finally live up to expectations. Image | QST More information | Fusion For Energy In Xataka | The JET reactor has successfully completed its final tests with deuterium and tritium. It is a crucial milestone for nuclear fusion

China has a nuclear reactor 100 times more efficient than traditional ones. The trick is to shoot atoms with an accelerator

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China has had one goal in mind for some years: to have a voice in the nuclear race. In the weaponsyes, but also in energy. As Europe argues and the United States attempts to rejuvenate its critical infrastructure to meet AI needs, China has been on the accelerator for months. Recently they have not only approved 10 new reactorsbut they are one step away from turning on a new generation nuclear power plant to provide ‘green’ energy for 1,000 years. This is the CiADS system, or Throttle Actuated System. It is a type of reactor that China has been developing for more than 15 years and that promises to convert waste into energy. Their trick is to convert “garbage” into fuel, and it is a very interesting twist for nuclear energy. And even more so in a China that wants to dominate the atom and renewables as a basis for the development of another of the great ambitions of the country. Artificial intelligence. A twist to nuclear energy In a releasethe Institute of Modern Physics of the Chinese Academy of Sciences gave some details of how this accelerator-driven nuclear reactor works. Uranium is still the fuel, but “reactor driven by an accelerator” is literal. Using a particle accelerator, protons are “shot” at a heavy metal target at a speed of 0.8 times that of light. This generates neutrons that drive a reactor that operates somewhat below the critical threshold to be self-sustaining. The reactor generates energy and this violent reaction causes the long-lived radioactive isotopes that are normally generated in a conventional nuclear power plant to transmute and become materials with a shorter life. As its managers explain in SCMPthe CiADS is a hybrid between a nuclear reactor and a particle accelerator. The main advantage is that greatly reduces the risk of uncontrolled reactionsbut it has another: you can reuse the radioisotopes that normally would be treated as nuclear waste to continue producing energy. Firing beams of protons through these accelerators to bombard the heavy metal makes the uranium-238 give way to a new nuclear fuel: plutonium-239. According to the state media Science and Technology Daily, it is basically turning waste into treasures. According to those responsible, this method is 100 times more efficient than conventional fission and would allow nuclear energy to be converted into “a source of green, safe and stable energy for 1,000 years”, ensuring part of the necessary energy supply for the future. Furthermore, since what would previously be long-lasting waste is reused, the resulting CiADS has a useful life of less than one thousandth compared to conventional waste. The CiADS under construction They are two birds with one stone: China is wildly expanding its nuclear capacity, but it is estimated that it does not have as much uranium of its own and would continue to depend on imports… or to fish it in the sea. With “100 times more efficient” plants, you can get more juice out of what you have. And then there’s the fact that nuclear waste is less dangerous. If everything goes as planned, China will have its first MW-scale CiADS in 2027. It will be then when we check if those theoretical promises achieved by scale prototypes are fulfilled. The CiADS comes at a time when China has emerged as a contradiction in energy matters. They carry years fighting pollution and emissions, but they burn coal. They are a powerhouse in renewables with megastructures and deserts covered by panels. But in the age of AI, it is precisely that coal and gas that is the fuel that allows us to satisfy the demand of data centers at the peak of training. With nuclear weapons, China seeks further reduce your CO2 footprintbut ensuring a future in which it must feed the population, artificial intelligence and a network of technology companies that are doing the most difficult: fighting Western companies without the technological resources of the West. Because right now China doesn’t have the chips or the AI, but yes the energy. And that investment in new generation nuclear plants and, above all, in nuclear fusionrepresents the foundation of what is to come. Everything, that is, if the CiADS works as expected. Images | Sahaza Delis, Tighef In Xataka | There is a global race to be the first to reach nuclear fusion. And Germany just gave it an optimistic date

disarm South Korea against the North’s new nuclear “toy”

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It we count a few days ago. There are military infrastructures so scarce and sophisticated that there are barely a handful of them on the entire planet. Some are designed to detect missiles at gigantic distances and cost a fortune, others are installed in allied countries thousands of kilometers from where they are manufactured. When several of those pieces disappear from the board At the same time, the security of entire regions may begin to depend on movements occurring on the other side of the world. A war that eats up the shields of the planet. The offensive against Iran has triggered a strategic domino effect that goes far beyond the Middle East. After the Iranian attacks on US critical infrastructureWashington met an unexpected problem: Several of its most sophisticated warning and tracking systems (those unique radars capable of detecting and coordinating defense against ballistic missiles) were left damaged or destroyeddrastically reducing surveillance capacity. Of the eight most advanced radars of this type that the United States possesses, four were offside. That means another similar strike could leave Washington virtually blind to new waves of missiles or drones. Faced with this risk, the priority became protecting the US bases deployed in the Gulf and the Levant. The result has been a decision that reveals the extent to which the war against Iran is straining the global defense architecture: the United States has begun to withdraw Asian anti-missile systems to reinforce its shield in the Middle East. Plan B. The solution adopted by the Pentagon has been to move pieces from one of the most sensitive boards on the planet: the korean peninsula. For years, the THAAD system deployed in South Korea was presented as the key piece to intercept North Korean missiles before they reached Seoul or US bases. That decision sparked protests localities and tensions with China and Russia due to the powerful radar associated with the system. Now, almost a decade later, parts of that shield are being disassembled and loaded on transport planes heading to the Middle East. And not only that, because the transfer is not limited to THAAD. It is also studied move Patriot batteries and other defensive assets towards US bases in Saudi Arabia or the United Arab Emirates to protect them from possible Iranian retaliation with drones and missiles. For Seoul, the scene is extremely disturbing: Defenses designed to stop attacks from the North are being sent thousands of miles away to sustain a war on another continent. THAAD The strategic cost of a war. They remembered in the Guardian that the withdrawal of these systems has generated a wave of concern in South Korea and Japan, two of the pillars of architecture American military in Asia. South Korea hosts about 28,500 U.S. troops and relies heavily on Washington’s defensive umbrella to balance North Korea’s nuclear arsenal. Although the South Korean government insists that its deterrence capacity remains intact, many analysts they fear that Pyongyang interprets the move as an opportunity to test the limits of the alliance. Japan, for its part, observes with the same concern how American destroyers based in Yokosuka move towards the Arabian Sea, while in Tokyo the debate grows on whether US bases in the country could end up involved in conflicts outside the Asian theater. The question that floats in both capitals is uncomfortable: to what extent the war against Iran is draining military resources that were intended to contain North Korea or China. Hyunmoo-3 cruise missile on display during South Korea’s 65th military anniversary parade Pyongyang and a lesson. They remembered this week on CNN that, in North Korea, events have reinforced a conviction that has been guiding its strategy for decades: the nuclear weapon It is the only real life insurance in front of Washington. The destiny of leaders who abandoned or never developed nuclear weapons (from Gaddafi to the recent bombings against Iran that ended with his supreme leader) is constantly repeated in North Korean propaganda as a warning. For Kim Jong Un, the conclusion seems simple, because giving up the bomb means opening the door to operations regime change. Therefore, while the United States focuses its attention on the Middle East, Pyongyang accelerates its nuclear program and continues to develop missiles capable of carrying nuclear warheads to the mainland United States. North Korea already possesses, in fact, dozens of warheads and enough material to produce many more, which completely changes the risk calculus for any power contemplating direct military intervention. The new nuclear “toy”. In parallel, the North has presented one of the most ambitious projects of its military modernization: the destroyer Choe Hyona 5,000-ton ship that represents the most important leap in its navy in decades. During its first sea trials, the ship launched strategic cruise missiles under the direct supervision of Kim Jong Un and displayed a battery of up to 104 missiles of different types thanks to an expanded vertical launch system. The regime intends to build at least ten ships of this class in the coming years and convert its navy into a force capable of projecting power beyond the peninsula. The program also includes the progressive integration of nuclear weapons into naval forces, a change that would expand the platforms from which Pyongyang could launch nuclear attacks. Kim and the Iranian example. The war in Iran has also reopened a broader strategic debate in Pyongyang. Kim Jong Un and his inner circle are analyzing each phase of the American operation: from the ability to locate enemy leaders to the speed with which Washington can pass from diplomacy to action military. In that sense, possibly the memory of the failure of Hanoi summit In 2019 it continues to weigh in that calculation. At the time, Kim believed a deal with Trump was close and returned home with nothing. Since then, North Korea has strengthened its association with Russiasending ammunition and troops for the war in Ukraine in exchange for fuel, food and possibly military technology. However, the lack … Read more

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