that of the Cerros de la Plaza glacier

In March 2026, Colombia officially lost another glacier. The Institute of Hydrology, Meteorology and Environmental Studies confirmed it: The Cerros de la Plaza glacier, located in the Sierra Nevada de Güicán or El Cocuy, had disappeared. It was not a surprise: they had been warning about it for a long time. From 5.5 square kilometers to zero. The news arrived accompanied of a sequence of satellite images that document with cruel precision a decade of agony: the European Space Agency’s Copernicus Sentinel-2 satellites they were monitoring its decline since 2016, frame by frame, without anyone being able to do anything. To Colombia It has six glaciers left. For now. goodbye to Plaza Hills. The Copernicus Sentinel-2 satellites captured the state of the glacier at six key moments between 2016 and 2026. In 2016 the ice mass was still visible, with white and bluish tones over the high mountain landscape. In 2018 and 2020 the reduction was already significant. In 2022 and 2024 the ice appeared divided into increasingly smaller fragments, scattered over the rock. At the beginning of 2025, only isolated remains remained. By 2026, the white signal had completely disappeared from the image. They verified its extinction with support from the Agustín Codazzi Geographic Institute. It is, therefore, a definitive extinction, as the IDEAM concluded. The disappearance of the Cerros de la Plaza glacier in northern Colombia. Eu-Space Why is it important. The disappearance of a glacier has several implications. From a hydrological point of view, saying goodbye to an Andean glacier means saying goodbye to a natural regulator that supplies water to the surrounding valleys in the dry season, since these bodies accumulate water and release it little by little when it is hotter and rain is scarce, that is, when it is most needed. Without this mechanism, the flora, fauna and communities that depend on these basins are exposed. The biological damage is equally profound. The glacier was part of a high mountain ecosystem, with species adapted to those conditions. The International Union for Conservation of Nature consider The Colombian moors are one of the most vulnerable ecosystems to climate change on the planet: when the ice disappears, it fragments habitats, threatens species and breaks ecological balances that have been in place for millennia. Context. In the mid-19th century, Cerros de la Plaza covered approximately 5.5 square kilometers, the size of several hundred soccer fields. In 2016, the area had already been reduced to just 0.15 square kilometers and this decade it has completely disappeared. Be careful, it is not a process that began in 2016: the decline has been documented since the 19th century, although in recent decades it has accelerated drastically. According to IDEAMColombia went from approximately 347.9 square kilometers of glacial coverage in the 19th century to only 30.83 square kilometers in 2024. At least 13 glaciers have completely disappeared since the mid-20th century and the six that remain are in accelerated retreat. If the trend continues, by 2050 Colombia could lose them all. But it is not an isolated case: throughout Latin America the retreat of glaciers is a general trend. How it happened. Tropical glaciers are especially sensitive to climate change, as explains IDEAM. To begin with, they are exposed to warm temperatures for almost the entire year, without a winter that allows enough snow to accumulate to compensate for the melting. So any sustained increase in average temperature has a direct and immediate impact on the ice mass, by lack recovery cycles that cushion the setback in other latitudes. In addition, Cerros de la Plaza is at an altitude close to 5,000 meters, which is relatively low to keep the ice stable. Likewise, precipitation in the form of snow has also decreased, so that the accumulation and the albedo and its effects: If there is less white surface where solar radiation can be reflected, the exposed rocky terrain absorbs more heat, accelerating melting. It enters a vicious circle that ends in progressive glacial collapse, that is, sustained and irreversible degradation. In Xataka | For an entire lake in Canada to disappear in just 15 days is rare. Science has a disturbing explanation In Xataka | Chronicle of an announced collapse: the NASA map that shows how quickly Mexico City is sinking Cover | Copernicus Sentinel – 2 Europe

Liquid cooling or air cooler? What to choose so that your CPU doesn’t smoke without having to spend a fortune

How difficult it is to choose the parts of a desktop PC: what if the processor, what if RAM memory (well, if you find it at a good price), what if graphics card and other things. But it’s not all about your computer being as powerful as a NASA computer: you also have to design it so that it doesn’t smoke. And that’s where refrigeration comes in, a topic that has more to it than it seems and that we are going to explain in this article. Essentially, you have two ways to cool your processor: an air cooler and liquid cooling. You may read in many places that the latter is the best, but there are many nuances in that statement that must be clarified. So, let’s get down to business. Choosing an air cooler Let’s start with the air heatsink, which we can say is the ‘old-fashioned’ solution for cooling a processor. If you take a look at one of these heatsinks, you will see that it is almost all a fan, although it is a somewhat more complex component than that. Everything is placed on top of the processor and right there, depending on the model we choose, we must keep one thing in mind: may need a lot of space inside the PC case. Piecemeal. The air sink has a copper or aluminum base that rests just above the processor and, to facilitate heat transfer, the thermal pastea compound that makes it easier for this generated heat to pass from one place to another. That heat travels through heat pipes or heat pipes, which are sealed tubes with a small liquid inside that continuously evaporates and condenses to transport heat very efficiently, until it reaches the radiator. How does one of these heatsinks cool? There is no universal answer to this, since each model is different. But, yes, keep this: a quality air heatsink can cool better than small or medium liquid cooling. And that, in addition, with several very interesting advantages. The first thing is that these heatsinks are much easier to install: just apply thermal paste, screw and connect to the motherboard, nothing more. Besides, andThese heatsinks are much simpler and more durable. Basically, what can end up breaking is the fan and it is not difficult to replace at all. Now let’s get to the bad. Again, it will depend a lot on the model we choose, but there are air heatsinks that, when put at full capacity, They are real turbines and they make a lot of noise. They also take up a lot of space, as we said above, which has two implications. First, you need physical space to put it in the box. And second, if it fits just right, it will not have enough space to expel air and the cooling will not be correct. Choose liquid cooling The alternative is AIO liquid cooling (which comes from ‘All In One’). If you have read this far, you can already imagine that we are facing a more sophisticated refrigeration method. In fact, it is not only more sophisticated because of the way it extracts heat (which also, as we will see below), but it is a sophisticated system in sight. It’s an eye-catching system: the compact block above the processor and the case-mounted radiator offer a much cleaner look than the bulky air cooler. This system is based on the same thing as the air heatsink, that is, a metal block that comes into contact with the processor (with thermal paste, of course). What’s happening? What happens through that block? a liquid that absorbs heat and carries it through tubes to a radiatorwhich is actually quite large. This has fans nearby that cool the liquid and, in this way, the cycle begins again. Let’s go with its strong points. Remember what we mentioned above about the price, but, in essence, liquid dissipates heat better than air. In addition, the fans of this type of system are usually quieter than the one with the air cooler, which means less noise. Although be careful, because the pump can also make a little noise. There is also the issue of space, since the block that goes on top of the processor is much less bulky than the air heatsink. Bad turn. This cooling system, being more complex, is much more difficult to install. Besides, It also has a shorter useful life. (they usually have a useful life of between three and six years) and, if there is a coolant leak, it can cause serious damage to the PC (it is not common, but it can happen). They are also more expensive systems, as we say. The good and the bad of both options, face to face air heatsink liquid cooling THE GOOD 🟢 It is a cheaper system that works well and is more durable. It can be more efficient when cooling and aesthetically it is very cool. THE BAD 🔴 It takes up a lot of space inside the PC and can make a lot of noise. It is more expensive and, if it causes problems, it can be a headache. Ideal for: Have a long-lasting cooling system without many complications. Users who put a lot of effort into their processor and who want the interior of their PC to be more aesthetic. Neither of these two options is bad for your PC, but they have their advantages and disadvantages. Beyond what you want to spend, what you have to take into account when choosing is What needs do you have and what use are you going to give to your computer?. If what you are looking for is a system that will last for many years and you will hardly have to worry about it (beyond cleaning it and changing the thermal paste), then the ideal is to choose an air heatsink. Because? Because these systems are simpler and it is difficult for them to break. In addition, a good … Read more

The day Spain wanted to be Spielberg doing science fiction. It was such nonsense that Tarantino ended up claiming the film

In 1982, during the filming of Fitzcarraldo In the Amazon jungle, Werner Herzog heard a completely real proposal from several local indigenous people: they offered to kill Klaus Kinski to put an end to the problems he was causing on set. The German director rejected the idea, but years later he would admit that for a few seconds he seriously considered accepting the offer. The impossible movie. In the mid-80s, Spanish cinema was still very far from Hollywood. Science fiction blockbusters seemed to be the exclusive territory of Spielberg, George Lucas or Ridley Scott, while comedies and much more modest films in terms of media predominated here. Then the director Fernando Colomo appeared and decided do exactly the opposite of what seemed sensible: raising a medieval science fiction epic with aliens, castles, special effects, international stars and the largest budget in the history of Spanish cinema up to that point. The result was so enormous, chaotic and Martian that it ended up becoming a symbol first of absolute failure…and decades later in a cult film claimed even by Quentin Tarantino himself. movie poster Spain in Hollywood style. The dragon knight was born as a completely improbable idea: mixing the myth of Sant Jordi with Encounters in the third phasemedieval fantasy, absurd humor and romantic science fiction. The story began with a spaceship mistaken for a dragon in the middle of medieval Europe and a silent alien (played by Miguel Bosé) falling in love with a princess after accidentally kidnapping her. Colomo came from triumph with the comedies of the Madrid Movida, but decided to launch into a gigantic project by Spanish standards. The budget is over exceeding 300 million of pesetas, a crazy figure for the time. Huge sets were built, models and storyboards that were unusual in Spain were designed, and some of them were experimented with. the first digital effects of national cinema. The problem is that Spanish cinema in 1985 simply did not yet have the necessary industrial infrastructure to build something like that without everything exploding into the air. Martian Bosé, Keitel sunk and Kinski unleashed. The casting seemed like an international frenzy. Harvey Keitel accepted the project at one of the lowest moments of his career after working with Scorsese. Miguel Bosé finished turned into an alien because Imanol Arias “did not have the face of an alien,” according to Colomo himself. And then there was Klaus Kinski. The German actor arrived at the filming as a ticking bomb human. He constantly insulted the team, shouted “What a shitty movie!” During the days, he demanded more money, disappeared when he wanted and turned any technical delay into an attack of fury. Apparently, he only respected Miguel Bosé (and for being Picasso’s godson) and the gypsy animal caretakers on the set. To give us an idea, Keitel even offered to pay out of pocket to settle one of Kinski’s contractual tantrums. The atmosphere was so unbearable that Colomo tried to film all the German scenes before meals so I can have a quiet lunch without him. History left the moment when Kinski finally finished his sequences and left the shoot, when the team celebrated his departure. opening bottles of champagne All wrong. The film was shot amidst constant rain, delays, cost overruns and situations almost surreal. An extra was about to drown during a sequence on a lake because the armor was too heavy and he couldn’t stay afloat. An electrician managed to rescue him at the last moment and then used that anecdote for years to demand work in new Colomo films. Not only that. The castle where they were filming was so poorly located that the crew had to upload loading material on exhausting days every morning. Miguel Bose I could barely breathe inside his spacesuit and diving suit it continually fogged up. Meanwhile, money was disappearing at breakneck speed. What had started as an ambitious fantasy ended up becoming something of a kind. suicide expedition where every day seemed to bring a new logistical disaster. The final failure. When The dragon knight It hit theaters in 1985, the reaction was brutal. Part of the criticism destroyed her describing it as a botched, absurd and inoperative fantasy. Although the film was relatively seen and became the seventh highest-grossing Spanish production of the year, that it wasn’t enough to recover such a crazy budget. To make matters worse, the American distributor broke agreements due to delays in the delivery of the material and Colomo lost a trial in Hollywood that left him without international rights. The director finished in debt with 50 million of the old pesetas and, according to would count Years later, he only kept “a Renault 5.” The experience was so traumatic that he thought he was going to have a heart attack. In fact, to survive financially he wrote almost as an emergency The joyful lifewhose subsequent success allowed him to pay off the debts accumulated by that medieval space madness. From disaster to cult movie. For decades, The Dragon Knight was remembered as one of the big hits of Spanish cinema. But over time something began to happen that has been repeated in many other celluloid productions: many people began to see it with fascination. Its impossible mix of genres, its naive tone, its disproportionate ambitions and the chaos that each scene gives off transformed it into a unique rarity. Festivals like CutreCon They claimed it as a cult work and the film ended being restored in 4K forty years after its premiere. The definitive turn came when Colomo remembered a conversation in Sitges with Quentin Tarantino. The American director, always obsessed with strange and failed films, immediately recognized Star Knight (his international title) even before Colomo himself remembered what it was called in English. It turned out that that martian medieval that almost ruined half the world ended up surviving in the most improbable way: converted into a delirious relic of a moment in which Spanish cinema believed, … Read more

Orange’s “life insurance” to protect the internet

More than 95% of international internet traffic travels over cables that are at the bottom of the sea. Africa and Europe start from very different positions, but they are essential to sustain essential services on both continents, such as the cloud or financial systems. Thus, while Africa It is the continent where demand grows the most bandwidth in the world and faces the problem of relatively old cables designed for much lower traffic than the current one, Europe has consolidated strategic nodes in places such as Marseille, Lisbon or the south of England, but is still exposed to the same risks of concentration and aging. Via Africa is born from both needs, the new submarine cable that Orange and an open consortium of seven operators have announced. The Via Africa cable. Via África is a new submarine fiber optic cable that will connect southern Europe with South Africa bordering the Atlantic. It will have European connection points in the United Kingdom, France, Portugal and the Canary Islands. On the western African coast, its nodes will be in Mauritania, Senegal, Guinea, Ivory Coast and Nigeria, although both the final complete route and other points in southern Africa are still pending definition. In any case, The reason for this cable is improve the diversity and resilience of international communications between both continents. Sketch of the layout. Orange Why is it important. To start with, this cable is the answer to that veteran and undersized infrastructure of the African continent and its growing demand at a time when cloud services, artificial intelligence and teleworking are skyrocketing traffic. Furthermore, the African Atlantic coast has some critical points due to the high concentration of marine infrastructure, such as the Ivory Coast, where several cables converge in the same physical place. This example is not coincidental: in March 2024 they failed the four cables that were there at that time at the same time due to a rockslide. The result? 13 West African countries with connectivity at minimum levels for weeks. But the problem is not only African: when these cables fail, Europe loses traffic capacity to the continent, dragging down operators, companies and cloud services that depend on that route. What Via Africa proposes is precisely a geographically different route, that is, an alternative that breaks that dependency. Six cables, the same physical point in the Ivory Coast. Submarine Cable Map Context. The African Atlantic coast is already served with cables such as SAT-3/WASC (2002), WACS (2012), ACE (2012), MainOne (2010) or Google’s Equiano (2023), but some of these systems are aging or have proven to be vulnerable. This new cable adds to a wave of investment in African submarine infrastructure, such as the recent 2Africa in Meta (2025) or the Medusa in the Mediterranean (2026). Orange needs few introductions: it manages more than 450,000 kilometers of submarine cables around the world through its subsidiary Orange Marine and in fact, last year charge two new cable carrier vessels to reinforce its maintenance and deployment capacity in the Atlantic, the Mediterranean and the Indian Ocean, with delivery scheduled in 2028 and 2029. How are they going to do it?. At the moment the only thing that there is closed It is a Memorandum of Understanding for its construction by a group of investors among which are CanalinkGUILAB, International Mauritania Telecom, Orange Group, Orange Côte d’Ivoire, Sonatel and Silverlinks. From here, the process starts with a route study to determine the optimal route in terms of resilience, technical feasibility and economic efficiency. Likewise, the business consortium will prepare the bidding process to select the cable manufacturer, the next step. Yes, but. The announcement is a memorandum with big names behind it, not a construction contract, which means that the stage of the operation is extremely early: it could take years until it is operational or even never materialize. In this sense, logically there are still important unknowns pending that range from the total layout and its length, all the nodes, the manufacturer and installer and the route sheet with a date for its entry into operation or the cost. Furthermore, Via África is going to enter a space that is not free: Google already operates Equiano on the same coastal strip and Meta has its own cable circumnavigating Africa with the very long 2Africa of 45,000 kilometers. In short, it will have to compete with the infrastructure of the large hyperscalers. In Xataka | The submarine cables belonged to the teleoperators, and now the big technology companies are controlling them In Xataka | The first great Atlantic submarine cable that connected us to the internet says goodbye for a simple reason: it was too expensive to repair it Cover | Bryan Christie Design and Orange

After deploying its data centers in Aragon, Amazon wants to protect Zaragoza from floods

On July 6, 2023, a torrential storm collapsed the Barranco de la Muerte in Zaragoza, leaving the Z-30 under two meters of water and causing damage valued at 125 million euros, as collects The Herald. Among the affected structures, the high-speed train between Madrid and Barcelona and the capital’s main ring road. This natural disaster made it clear that Zaragoza lacked hydraulic infrastructure capable of absorbing extreme weather events, increasingly frequent with climate change, such as explains AEMET. In response, the City Council made a plan structured in three phases and began conversations with Amazon Web Services, the hyperscaler that Aragón has chosen for its data centers in Spain: the result is a public-private alliance that combines hydraulic infrastructure and real-time monitoring technology with the aim of turning Zaragoza into a European benchmark for urban resilience. Zaragoza, flood-proof. The Zaragoza City Council and AWS with the collaboration of the Government of Aragon and the Ebro Hydrographic Confederation have agreed implement a global technological and hydraulic strategy for environmental risk management. Amazon will contribute 13.8 million euros, distributed in three annual installments. The collaboration has two legs: a physical one, with the construction of hydraulic infrastructure in the Barranco de la Muerte; and another technological, with the deployment of an intelligent early warning platform based on the AWS cloud. Why is it important. This system will benefit more than 700,000 people who live in the Aragonese capital, in addition to protecting critical infrastructure for the city such as the Z-30, the train and entire neighborhoods such as Parque Venecia, today exposed to intense storms. Beyond the scope of the work, this is one of the few cases in Spain where a large technology company directly finances public civil protection infrastructure as a condition of its installation in the territory, which puts a question on the table: what the companies that consume the most resources can and should contribute to the cities that host them. Context. AWS maintains one of the largest investment plans in digital infrastructure in Spain: in 2024 announced an investment of 15.7 billion euros in Aragon over the next decade to expand its cloud infrastructure and new data center campuses in Villanueva de Gállego, El Burgo de Ebro and Huesca. This expansion has a B side: enormous pressure on the territory’s electrical, water and transportation networks. The Barranco de la Muerte is not an isolated case: the Valencia DANA of October 2024 left more than 220 dead and politically accelerated the demand for drainage infrastructure in vulnerable urban areas. Zaragoza, with active ravines and a climate prone to intense convective storms, is one of them. How are they going to do it?. From the point of view of hydraulic works, it is a lamination of avenues combined with sustainable urban drainage enhanced with real-time monitoring. The plan is divided into three technical phases. The first, financed by the council and already underway, consists of a perimeter canal and a retaining wall around the Barranco de la Muerte. The second, financed by AWS, adds a storm tank next to the Torrero Cemetery with a capacity for 20,000 cubic meters, five lamination dams and the improvement of the existing ones upstream of Z-40. The third would bury the ravine as it passes through Z-30 with a collector that would double the current drainage capacity. Added to this is a cloud platform that will combine sensors, artificial intelligence and real-time analysis to monitor flows and launch early warnings. That is to say: the physical infrastructure retains and laminates the water, and the technological infrastructure anticipates when and how much will arrive. AWS support is not only financial: it provides digitalization and predictive hydraulics that multiply the effectiveness of physical infrastructure. Yes, but. The collaboration is a real advance for the city, but it raises uncomfortable questions. The first is obvious: Amazon does not pay for these works out of altruism: its data centers in Aragon are voracious consumers of water and energy, so building water infrastructure in the city is a win-win: it minimizes the risk of supply failures in the event of potential natural disasters and improves its image while strengthening ties with the authorities. Water management is one of the thorny points of data centers and with its proliferation increases scrutiny and protests over the consumption of a scarce good, such as Amazon has already suffered itself in Aragon. On the other hand, for the alert technological platform to be useful, it will be an essential requirement that it be accompanied by proven evacuation and response protocols, which turns an alert into a real solution. How they plan to do it is something that has not been publicly disclosed at the moment. In Xataka | Zaragoza is so full of data centers that Amazon has decided to take one to… a town in Teruel with 900 inhabitants In Xataka | Quietly, Aragón is becoming a data center “powerhouse”: now it has taken a crucial step Cover | David Vives and AWS

Science is very clear why (and no, it does not mean that we are dumber)

For millions of years, the evolution of hominids was marked by a constant increase in the size of the skull and, therefore, of the brain itself, which marked a super important point in cognitive development that has led us to where we are until now. However, the current fossil and archaeological record indicates that Our brain is smaller than that of our ancestors. Many questions. Far from being a simple anatomical curiosity, this phenomenon has unleashed an intense debate in the scientific community. When did our brain start to lose mass and, above all, why? And the question that bothers us most: does this mean that we are becoming less intelligent than our ancestors? What we know. One of the most controversial recent milestones in this debate was the publication of an analysis of 985 human skullsboth fossils and modern. Through a statistical change point analysis, the researchers proposed that the human brain experienced a reduction in size only about 3,000 years ago, coinciding with the transition to the late Holocene. And to explain this loss of brain mass, the authors looked to evolution itself, since the fact of now living in increasingly larger, cooperative and complex societies meant that humans began to depend on collective intelligence and social specialization. In other words: we no longer needed as much vital information to survive, so the brain could afford to save energy in this way. There are doubts. In science there is no absolute truth, and we see it quite clearly when a new team decided to analyze this same data in order to verify if the 3,000-year theory was true. And their conclusion was that the brain did not shrink then of history and that the original study had serious statistical deficiencies. These deficiencies would focus on the sampling of the skulls analyzed, the critical failures when controlling brain volume in proportion to the body size of the time, and inaccuracies in chronological dating. That is why, despite agreeing that the size of the brain is reducing, the reality is that they suggest that it could be much older or gradual than estimated. Size or intelligence. Regardless of the exact chronology of when brain size began to be lost, the big question here is whether it affects our intellect. Here the logic states that we are now more intelligent than in ancient times and that is why it does not quite fit with our brain being smaller, which is a sign of ‘inferiority’. Here science suggests that there is a positive correlation between these two variables, but surprisingly small between absolute brain volume and cognitive performance or IQ. The important thing inside. In this way, experts point out that the raw size of the brain does not mark the intelligence of the human being in a significant way. Here what is truly important is the internal organization of the brain and how the different neurons are connected to achieve greater intelligence. In this way, having a smaller brain is not equivalent to being less clever, but rather it is equivalent to having a much more optimized organization. And this is precisely what we have been experiencing over the years. There are several theories. If collective intelligence is not the only answer there is, scientific reviews they point out an amalgam of environmental, social and biological factors. One theory suggests, for example, that, just as wolves reduced their aggression when they evolved into domestic dogs, humans had undergone self-domestication driven by the need to be more sociable and tolerant. Another theory suggests that, because the brain is an extremely energy-demanding organ, climate scarcity or high pathogen load has caused the body to prioritize resources to maintain the immune system instead of supporting very large brains. Images | freepik In Xataka | We had always believed that evolution had been arrested for thousands of years. The redheads were telling us the opposite

the B side of the geological samples of the Apollo program

When Apollo 11 astronauts They returned to Earth, bringing with them a piece of the geology of the Moon. Their objective was not only to know its mineral composition. They also sought to analyze all those rocks in search of organic materials. This involved a complete chemical analysis, but also something much more bizarre: feeding moon dust to cockroaches. Three types of snacks. NASA scientists wanted to know if there were traces of life in the lunar rock and, in the process, check if it is dangerous for life that already exists on Earth. Therefore, it occurred to them to choose a few animal species that were raised easily and quickly and feed them part of those rocks. They were divided into three groups. In the first they consumed sterilized ground lunar powder, mixed with their food and water. The animals in the second group received the same, but without sterilization. Finally, the last group did not eat lunar dust, although some specimens had to walk on the rock samples. A very particular Noah’s ark. The chosen animals For this experiment they were Japanese quail, brown shrimp, pink shrimp, oysters, house flies, cockroaches, moths and guppy fish. Only the guppies died. However, it was later found that the cause was fumes from a disinfectant that had been spilled near his fish tank. The lunar regolith had nothing to do with it. Without a trace of life or danger. In short, it was seen that the lunar dust brought back by the Apollo 11 astronauts did not contain organic compounds or the slightest trace of life. But it was also found that it did not seem to be dangerous for a large number of terrestrial and aquatic animals. It is true that it is said that cockroaches could survive a nuclear attack, but this is a myth. Furthermore, even if it were true, many more animals were included, very different from each other. If none were affected, that’s a good sign. It is not harmless. Despite what was discovered with this bizarre experiment, today we know that lunar dust is not harmless. In fact, many of the astronauts who traveled to the Moon described something known as lunar hay feverwhich they experienced when the dust clung to their suits and was introduced into the ship. It caused them to sneeze, watery eyes, and have a sore throat. This is because it is a very irritating dust for the mucous membranes and respiratory tract. As if that were not enough, it is also very abrasive. It scratched the astronauts’ helmets, which also caused a lot of discomfort in their eyes. The rest of the rocks. The other samples and rocks from the Moon were directed to very different purposes. Some were used for research. Others were sent as gifts to a large number of countries to emphasize the collaborative goal of traveling to the Moon. The rest were kept safe in NASA facilities. Although perhaps the collection was not so good, if we take into account that in 2002 three NASA interns stole a sample and two of them spread the rocks on the bed to have the closest thing to sex on the moon they could ever have. Now that we remember this, the cockroach thing may be the second funniest story regarding rock samples from the Moon. There are situations that are difficult to overcome. Image | Unsplash/NASA In Xataka | If we want to find extraterrestrial life, we already know where in space we should look: the “terminator zone”

release (many) ladybugs around the city

Every spring, urban parks across half of Europe deal with the same problem: pests. The most common and traditional response continues to be chemical pesticides: they are effective and cheap to keep insects such as aphids at bay, but they have a well-documented ecological cost on other auxiliary fauna and the soil. However, some European cities have been exploring an even older alternative for years: returning the natural predators that always kept them at bay to the ecosystem. Logroño has just taken that step: This spring it will release ladybugs and other insects in several of its green spaces. Ladybugs and Anthocoris as a natural pesticide. The City Council of Logroño, through the UTE Espacios Verdes Logroño, is carrying out these days biological control actions in parks and gardens in the maple trees and rose bushes on Paseo del Espolón, in the lime trees in Plaza Primero de Mayo, Parque Gallarza and Parque del Carmen and in the Cercis specimens on San Antón Street. As? Introducing their natural predators. Ladybugs are the friendly and well-known face of this operation, but beneath that mottled red mantle hides a voracious predator capable of devouring several hundred aphids during its lifetime. He Anthocoris nemoralis (a predatory bug) is much less known to the general public, but equally essential on a biological level: it is a predatory bug that attacks psyllids, mites and other phytophages that especially affect urban trees. Why is it important. Because it is a natural measure to decimate pests without the need for conventional phytosanitary treatments that also favors biodiversity in the urban environment. Conventional pesticides eliminate the target species, but they also kill pollinators such as bees and butterflies, contaminating the soil and aquifers. In the long term, they end up having a kind of rebound effect in the form of resistance, which forces the use of increasingly higher doses or more aggressive compounds. Hence Europe has been warning for some time about its use and the need to look for alternatives. On the other hand, this measure also has its relevance in public health: these urban green spaces are places of daily traffic where applying phytosanitary products in those environments implies human exposure that biological control completely eliminates. The WHO has documented the effects of chronic exposure to organophosphate and pyrethroid pesticides on health, especially in children. Context. It’s no secret that we are running out of insects: this specific study in Germany shows a disappearance of 75% of flying insects in 27 years (the study is from 2017), a trend that is expanding throughout Europe. The reasons are several: pesticides, loss of habitat, pollution and climate change are just a few. Cities play a role in that they bring together many species of insects in a small space. What is a biodiversity sink can become a refuge: cities like Barcelona, ​​Huesca, Zaragoza, Pamplona, ​​Madrid and Logroño itself They have been implementing for years comprehensive pest management strategies that include biological control as a central element. Vitoria-Gasteiz deserves special mention: one of the green capitals in Europe carries out environmental policies sustainable management of urban green areas. How it works. The biological balance is simple: predator – prey. In an ecosystem in its unaltered state, aphids would be naturally regulated by their predators and would only be triggered when the balance is broken, something that in fact happens in cities, where the diversity of auxiliary fauna is low. The solution is not to eliminate the pest with a chemical product, but restore lost predatory pressure. What makes this approach so valuable is that it is a selective measure: an insecticide destroys what is in front of it, while ladybugs and Anthocoris nemoralis concentrate their activity on prey that is part of their natural diet, leaving intact populations of bees or butterflies that visit the same flora. Yes, but. The initiative from Logroño has an important blind spot: the origin of the released insects. We do not know if these ladybugs and Anthocoris nemoralis come from local populations or from foreign commercial breeding. Introducing non-native specimens can alter the genetics of wild populations in the region and even end up displacing native ones. On the other hand, we do not know the number of insects released and whether there will be subsequent monitoring: to know if the biological control has worked it is necessary to measure the density of the pest before and after, record the survival and dispersal of the released individuals and compare with control areas where there has been no release of insects. In Xataka | The European Union believes it has a solution for the decline of wine in Spain: plucking the “green” grapes in La Rioja In Xataka | The terraces of hoteliers have been taking over city streets for years. Logroño has a plan for them Cover | Afaaq Afzal and Tom Winkler

that 20 euro flights are a relic of the past

During the great oil crisis In the 1970s, several US airlines began do something unusual to save fuel: deliberately reduce speed in mid-flight. Some They even eliminated olives of the salads served on board because every extra kilo mattered when kerosene prices skyrocketed. Half a century later, the airline industry is once again discovering the extent to which a distant energy conflict can transform something as everyday as getting on a plane. Goodbye to flying “cheap”. For more than two decades, Europe got used to it to something that would have seemed absurd in any other era: crossing the continent for less money than it costs to park your car at an airport. The low cost airlines They transformed the plane into an everyday means of transportation and normalized impromptu getaways, whirlwind weekends, and vacations designed around ridiculously cheap tickets. It so happens that the war around Iran is beginning to put into question precisely that model. He Closing of Hormuzthe brutal increase in the price of kerosene and the interruption of routes are hitting the economic heart of commercial aviation. And little by little an uncomfortable idea is beginning to emerge for the European consumer: those 20 euro flights that seemed eternal could have been a historical anomaly much more fragile than it seemed. Hormuz on the plane ticket. The Financial Times said this week that the connection between a conflict in the Middle East and a cheap flight between European cities seems distant until fuel starts to run out. Near the 40% of kerosene that Europe uses passes through the Strait of Hormuz, now converted into one of the main energy bottlenecks on the planet. The war has duplicated the global price of aviation fuel and forced to cancel tens of thousands of flights that simply became unprofitable. Some airlines have started even to carry out truly desperate logistical maneuvers to refuel in other countries or avoid certain routes. The problem is especially delicate because, even before the crisis, fuel was already the higher operating cost from any airline. When kerosene skyrockets, the entire financial architecture of the low-cost model begins to falter. Natural selection in war. Because commercial aviation has always been a brutally competitive industry with minimal margins, but the conflict with Iran is accelerating a consolidation process which had been occurring for years. There we have as a first reference the Spirit Airlines bankruptcywhich has been interpreted by many executives as the beginning of a new wave of mergers, disappearances and cuts. Weaker airlines, especially those focused on ultra-cheap fares, are beginning to face a scenario where maintaining extremely low prices can stop being viable. Even giants like Ryanair, easyJet or Wizz Air They watch with concern How rising fuel prices threaten the core appeal of your business. The problem is structural: no executive really wants to sell cheap tickets; wants to fill planes generating profits. And the less competition that survives the crisis, the easier it will be raise rates without fear of losing passengers. Flying expensive, again. For years, the expansion of low cost created the feeling that flying cheap was something natural and irreversible. But much of this phenomenon depended on a extremely delicate balance: relatively affordable fuel, enormous competition between companies, cheap secondary airports and a constant availability of efficient aircraft. The war is simultaneously eroding several of those pillars. Manufacturers such as Boeing or Airbus delays accumulate on deliveries, airlines are removing old models that consume too much and many routes are beginning to become economically unviable. Even historical giants such as Lufthansa or Air France-KLM already they are cutting thousands of flights to reduce costs. The worrying thing is that many of these measures could be maintained even after the conflict, consolidating a smaller, more concentrated industry with fewer incentives to maintain ultra-low rates. The new aerial geography. The crisis also threatens to redraw part of the world aviation map. For years, hubs like Dubai or Doha became authentic nerve centers that connected Europe and Asia thanks to abundant fuel, optimized routes and giants like Emirates or Qatar Airways. The war has hit precisely that network. Airspace closures, mass cancellations and supply problems have meant that many direct routes between Asia and Europe they fill even despite strong price increases. Some European companies are temporarily taking advantage of this situation, but everyone knows that when the Gulf airlines regain capacity they will start again a tariff war aggressive The difference is that this time they will do it in a context where fuel can remain expensive for a long time. The real problem: winter. Because summer still offers some room for maneuver as planes fly full and holidays sustain demand even with higher prices. But the industry’s real fear is what may happen next. If the conflict continues, energy prices remain high and airlines begin to exhaust their financial coverage on fuel, many winter routes they could disappear directly. That would open a dangerous spiral: fewer flights imply fixed costs that are more difficult to distribute, which forces prices to rise even further and further reduces demand. The risk is to end up entering a dynamic where low-cost travel stops being the dominant standard and once again becomes something much more limitedseasonal and expensive. In other words, the war in Iran is beginning to remind the West of something it had forgotten: behind every cheap 20-euro flight there was always abundant oil and geopolitical stability. And neither of those things seem guaranteed right now. Image | Pexels, Picryl, Picryl In Xataka | European airlines are taking advantage of the Iran crisis to accelerate something old: making your trip even more complicated. In Xataka | Iran is about to start another war: to buy a plane ticket before it costs a kidney

China is launching giant buoys into the sea that are real “small” fortified data centers. Korea won’t like it

Ocean observation is an essential activity to monitor climate change, navigation and the security of the planet, however 95% of internet data travels therethe sighting of ghost ships is the order of the day and we continue found new islands. Until now, the quintessential element for monitoring the sea has been floating sensors that everyone knows: buoys, a legacy of the analog world. In that calm calm China has invaded with its Sea Dragon (Hailong) series, a new generation of enormous buoys that mark a before and after in scale, design and functionality. Of course, they have nothing to do with that mooring that has reigned in naval engineering since the Second World War. The new Chinese buoy. The Hailong series are literally small disk-shaped fortified data stations. Although small is relative: its diameter is around six meters in diameter and as a structure it looks more like a small unmanned oil platform than conventional buoys. After completing the relevant tests at sea, it has already been integrated into the Yellow Sea observation network to continuously and real-time monitor the entire water column, according to the Institute of Oceanology of the Chinese Academy of Sciences. When deploying the new buoy, technicians simultaneously removed an older buoy after 16 years of service. A deliberate symbolic gesture insofar as it is not a mere change of buoy: according to the Institute it is “the world’s first system with a single disc side anchor structure”, leaving behind the classic central mooring point that has dominated Western marine engineering since World War II. Why is it important. The problem with the design of classic buoys is mechanical and well known: when a buoy with a central mooring rotates due to currents and wind, the cables coil and generate structural and instrumentation failures. This new lateral disc anchorage solves the root problem because it uses another geometry, thus minimizing these errors, operating with more stability. That is, the importance lies in the continuity of the data. The second reason is strategic. The Institute of Oceanology of the Chinese Academy of Sciences I had already tried other synchronized observation systems capable of covering from 10 kilometers of atmosphere to 1 kilometer of depth underwater, withstanding winds of 60 m/s and waves of up to 20 meters, powered by various energy sources (wave, solar, wind, hybrid). This new buoy transfers these capabilities to especially sensitive waters. It is, in short, a buoy designed to be operational for the long term. Context. Since the 1940s, the world standard for buoys has been defined by US Navy designs, such as the NOMAD (Navy Oceanographic Meteorological Automatic Device) type. For the time, these devices complied thanks to their simplicity and ease of deployment, although due to their physics they are vulnerable to excessive swinging. If there is serious surf, precision measurements get dirty. Over the years this standard has met precisely because it complied, its maintenance is low and other alternatives present challenges to its deployment. But China, driven by its need to control the South China Sea and the Western Pacific, has chosen to redesign the platform from scratch. In fact, China and Korea have a fishing agreement in the Yellow Sea dating back to 2001 where permanent installations are expressly prohibited. So China has fulfilled it in its own way: since then it has deployed 13 buoys, two large aquaculture cages and a maintenance platform. Analysts at the Center for Strategic and International Studies (CSIS) qualify this strategy of “progressive sovereignty”. How they have done it. The development is led by the Institute of Oceanology of the Chinese Academy of Sciences, which has been testing real-time transmission mooring systems since 2016. The new buoy is, therefore, the result of a decade of development, not a technological leap that arrives overnight. The secret of its design is the topology: moving the anchor point from the geometric center of the disc to the side eliminates the twisting moment produced by the entanglement of cables in the classic design. Instead of a wave-riding hull, the body is designed with a narrow cross-section at the waterline and deep ballast, which noticeably reduces hydrodynamic forces. For energy management, photographs published by the South Korean navy last year show models with solar panels that, assisted by artificial intelligence for data management and instrument optimization. The result is a platform that shines for its autonomy and resilience, since it can operate continuously in adverse sea conditions without human intervention. Yes, but. From a technical and geopolitical point of view, this deployment has a double reading: China’s official description presents these buoys as tools for the study of climate change and tsunami warning, but inherently this infrastructure is dual: if it integrates sonar and can process data in real time, it can also function as a war and control tool. On the other hand, the deployment of these intelligent platforms in disputed waters has its drawback from the point of view of international maritime law since they are complex and almost permanent structures. In other words, it is like putting a pike there. In Xataka | The United States is launching giant spheres into the sea with one goal: to take advantage of one of the largest sources of renewable energy In Xataka | A buoy from Mallorca has revealed the meteorological problem that Spain faces: the Mediterranean Sea is on fire

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