life

Nissan has been giving a second life to its car batteries for years. In Melilla they use them as an anti-blackout system

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Nissan has once again focused its attention on one of its most unique Spanish projects. And it is that in a recent press releasethe company recovered the case of Melilla as an example of how it is promoting the “second life” of its electric car batteries. The installation It has been operating in the city for several years now.but the project remains one of Nissan’s central arguments to defend that a battery that is no longer useful to power a car still has a lot to contribute to the electrical grid. What exactly is it about? The project is called Second Life and was born from an alliance between Nissan, the energy group Enel (through its Spanish subsidiary Endesa) and the Italian company Loccioni, specialized in measurement and control systems. The idea is to take advantage of Nissan LEAF batteries that have finished their time in the car to set up a stationary energy storage system. According to advertisement When the company itself made the project public, the installation combines 48 used LEAF batteries with 30 new ones, for a total of 78 units. Why Melilla and not another city. Melilla is an unusual case within the electrical system in Spain, since it is isolated, is not connected to the national distribution network and depends entirely on a single thermal power plant operated by Endesa. In other words, if that plant falls, the entire city is left without electricity. And precisely that point makes the city the ideal setting to test backup systems like Nissan’s. How it works in practice. The battery pack acts as an emergency generator. It has a power of 4 MW and a capacity of up to 1.7 MWh of stored energy. If the plant is disconnected, the system can inject electricity into the Melilla grid for about 15 minutes. It may not seem like much, but it is the margin that is considered sufficient to reactivate the plant and restore the supply without the population noticing a prolonged outage. Come on, it serves as a cushion to avoid blackouts and keep the network stable (although it is not shockproof. such problematic blackouts like April 2025). An interesting technical detail. The system does not disassemble the batteries cell by cell. According to explains The company, when each pack is removed from a vehicle, is placed directly into the storage system just as it was mounted in the car. It is a way to reuse the assembly without a complex dismantling process, something that makes reuse cheaper and simpler. Strategy. The brand frames Second Life within its concept of the “4Rs”: reuse, remanufacture, resell and recycle. It is a circular economy logic, since a battery that loses performance in a car still retains a good part of its capacity, sufficient for uses where it is not required as much, such as fixed energy storage. Soufiane Elkhomri, Director of Nissan Energy Services for the AMIEO region, counted Furthermore, the collaboration with Enel allowed them to create “a model for the second life of a battery, which can be applied to many other use cases.” A first step. Melilla is just one piece in a broader commitment than Nissan replicate in other placessuch as the LEAF batteries that support the Fiumicino airport in Rome or some of its facilities in Japan. The idea is interesting, especially in terms of reusing a component as critical as a car battery. It remains to be seen, in any case, to what extent this type of solution becomes widespread as millions of electric vehicle batteries reach the end of their first life in the coming years. Cover image | Christelle Hayek and Giovanni Della Checa In Xataka | A ‘shitty plan’ to save the countryside: Europe turns to manure to tackle the fertilizer crisis

Jupiter appeared just in time to retain the elements that would allow life

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Jupiter it’s a big planet and inhospitable, but it is quite possible that we owe life on Earth to it. And, according to a study recently published by scientists at Rice University with the support of NASAthe largest planet in the Solar System acted as a kind of gravitational dam to retain in our neighborhood some of the essential ingredients for the proliferation of living organisms. Phosphorus and nitrogen. These scientists have been based in measuring the ratio between phosphorus and nitrogen (P/N), two elements that are considered essential for life in adequate proportions. Thanks to the analysis of the composition of two different types of meteorites, it was possible to verify that, initially, the appropriate P/N ratio was concentrated in the outer part of the solar system, very far from where the Earth ended up forming. However, when the giant Jupiter was born, its great mass caused a kind of gravitational barrier that prevented the phosphorus from continuing to flow outwards and concentrate inside, in such a way that the Earth had the correct proportion of those pieces that, joined to others, could little by little give rise to the life that our planet houses today. 4.5 billion years of history. The solar system was formed from a large cloud of gas and dust 4.5 billion years ago. First, gas and dust merged to form celestial objects known as planetesimals. These collided with each other, releasing small pieces that over time became the planets and moons that the Solar System houses today. Some, however, did not constitute either of these two objects, but continued to wander in the form of asteroids. Furthermore, if these asteroids impact the Earth They are considered meteoriteswhich can be of two types. On the one hand we have iron meteorites, which are dense, metallic and composed mostly of iron and nickel. Secondly we have the chondrites, which They are rocky. The latter constitute the majority of meteorites that have been recovered on Earth. Some older than others. Today we know that iron meteorites are older than chondrites, since they were formed from a first batch of planetesimals. Chondrites were formed about 2-3 million years later. Taking this into account is very important, since it is precisely what was analyzed to verify how nitrogen and phosphorus were distributed during the dawn of the Solar System. Two other elements come into action. There are two other elements that indicate the origin of meteorites that have impacted the Earth. By analyzing the ratios of nickel and molybdenum isotopes it is possible to know whether the meteorites come from the external or internal part of the Solar System. This is important, since thanks to a series of laboratory experiments and geochemical models it was possible to verify exactly where the meteorites came from and how the levels of phosphorus and nitrogen fluctuated between them. The asteroid belt separates the outer and inner part of the Solar System From outside to inside. We already know that the first phases of the solar system can be studied in iron meteorites and the newer ones in chondrites. We also know that both can come from the external or internal part of the solar system and that this is found out by analyzing the isotopes of nickel and molybdenum. Thus, these scientists saw that the greatest high P/N was initially concentrated in the outer part of the solar system. However, later the tables turned and it began to focus on the internal region, precisely where the Earth was formed. The causes. In its initial phases, the protoplanetary disk in which the planets formed would be very hot and turbulent. These turbulences cause a strong flow of materials outwards. With increasing temperatures, phosphorus condenses inside the disk, as part of a mineral called schreibersite. Then, due to turbulence, it flows to the outside of the disk, which is much colder. The result is a buildup of phosphorus on the outside. As for nitrogen, through oxidation it is freed from some minerals that contain it, but it is very volatile, so it is maintained at lower levels. That means that in the outer layers there is a high P/N ratio. That is, much more phosphorus than nitrogen. Turn of tables. In chondrites it is observed that the tables turn. The elements of life flowed inward. This is partly because the disk is already colder after 3 million years, so there is less turbulence. But it is not enough to explain what these scientists have seen. For this reason, they consider that there is also a great influence from Jupiter. The changes occur more or less from the moment this giant planet formed. The main suspicion is that, being so large, it exerts a great gravitational influence that acts as a barrier preventing the schreibersite from escaping outward. On the other hand, due to the cooling of the disk, the nitrogen-bearing minerals stabilize on the outside. This means that the exterior is enriched in nitrogen, while the interior is impoverished. Added to the retention of internal phosphorus, the result is a high internal P/N ratio, which coincides with what we have on Earth today and, possibly, served as a starting signal for the formation of life. In short, Jupiter gave us a cable. He didn’t give us the ingredients to live, but he did prevent them from escaping our neighborhood. That was the key. Image | Comparison of the size of Jupiter and Earth (NASA) | Solar System (NASA) In Xataka | We have been studying the planets of TRAPPIST-1 for years with great hope. James Webb just knocked it down

Jeff Bezos asked his parents for their life savings to found Amazon. They only asked him one question: “What is the Internet?

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In 1995, Jeff Bezos decided quit your stable job and well paid as an analyst on Wall Street to set up a business selling books online. At that time, Jeff Bezos was not the millionaire he is today, so he went to his parents and asked them for help investing in Amazon. His father’s first question was clear and direct: “What is the Internet?” Miguel and Jacklyn Bezos didn’t know much about this new technology, but they knew that their son was determined to make the most of it. According to the writer Brad Stone in the book “The dream store. Jeff Bezos and the era of Amazon“, Bezos warned his parents: “There is a 70% chance you will lose everything. “I just want to make sure I can come home for Thanksgiving if this doesn’t work out.” Without hesitation, the Bezos invested a good part of their life savings in their son’s project. Today, that initial investment has grown by 15,500% and is worth more than the GDP of Iceland and the Maldives combined, making his father so rich (his mother passed away a few weeks ago) that, according to what he said The Wall Street JournalMiguel Bezos is hiring a CEO to manage the assets of his Family Office. The origin of a historic fortune In the mid-nineties, Mike Bezos, of Cuban origin and with family ties in a small Valladolid municipalitydecided to entrust the family savings to his son Jeff and, in the process, becoming the first investors after the founding of Amazon. According to documents According to the US Securities and Exchange Commission (SEC), the Bezoses’ initial investment was through the purchase of 582,528 Amazon shares and, just a few months later, they expanded their investment by purchasing 847,716 more shares. In total, 1,430,244 shares at a purchase price of 17 cents per share. That leaves a total investment of $243,141.48. As and as revealed Bloombergit is quite a fortune for a couple formed by a single mother who had to raise her son alone with a very poor salary while studying a career, and of a Cuban immigrant who arrived in the United States at the age of 16. After thirty years, if the initial investment had remained intact it would amount to about $72.6 billion. However, after various sales and donations of shares, the family wealth of Jeff Bezos’ parents exceeds $40 billion. CEO wanted for a fortune According to estimates by The Wall Street Journal and Bloomberg, Aurora Borealisthe company in charge of managing Miguel Bezos’s assets, was founded in 2020 and, if it were a person, it would rank 48th among the largest fortunes in the world. list of Forbes millionaires. Aurora Borealis is currently one of the family offices most relevant in the world due to its volume of assets. The company manages assets of a very diverse nature, from those founding shares of Amazon to investments in funds and philanthropy projects through the Bezos Family Foundation. The growing assets of Jeff Bezos’ father have reached levels that have made it necessary to professionalize the team that manages it from Aurora Borealis, signing as CEO to Valeria Alberola, an executive with experience in managing large assets. For reference, the new manager of Amazon’s founding fortune managed the family office of the Walton familyfounders and owners of the Wallmart supermarket chain. Their goal, to make Miguel “Mike” Bezos even richer. The story of Miguel Bezos’s fortune is not only relevant for having facilitated the founding of one of the largest companies in the world, it is also a unique phenomenon since it is unusual for a family loan of just under $244,000 to end up making the founder’s parents millionaires, and not external investors. Was a risky bet which turned out well, but could also have left Jeff Bezos banished from Thanksgiving dinners and his parents with a serious financial problem. In Xataka | Technological millionaires boast of ecological awareness. Their superyachts and private jets tell another story Image | Flickr (George W. Bush Presidential Center)

We knew that living near the sea made us “gain” years of life. What we didn’t know is that it was literally

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We have known for a long time that getting closer to nature has benefits for our health. Beyond avoiding pollution in our cities, getting closer to the natural environments around us can improve our psychological well-being, perhaps even encouraging us to lead a more active life. Little by little, we are also observing that something similar happens if we change the mountain for the sea. More sea, more life. A study has observed a correlation between residing in coastal areas and greater longevity. The analysis provide evidence of the link between bodies of water and the health and well-being of people. Of course, the relationship between “blue spaces” and health is a little more complex than it might seem. 50 kilometers. The study observed that the benefits of living near the ocean improved the quality of life of people residing within a strip of about 50 kilometers of the coast. Inland, however, they observed a very different trend: people who lived near bodies of water of a certain size (about 10 km² in surface area) tended to have shorter life expectancies. “Globally, coastal residents are expected to live a year or more longer than the median age of 79, and those who lived in more urban areas near inland rivers and lakes were more likely to die around age 78. Coastal residents likely lived longer due to a variety of interconnected factors,” highlighted in a press release Jianyong “Jamie” Wu, member of the team responsible for the study. 66,000 census areas. The study was carried out in the United States, where the team analyzed 66,263 census areas, studying life expectancy and its relationship not only with the proximity of bodies of water, but also with socioeconomic and demographic factors to control the results. Details of the study can be found in an article published in the magazine Environmental Research. Searching for the cause. The team points out different factors that could mediate this relationship, such as milder temperatures, better air quality, more opportunities for recreational activities, better transportation, less vulnerability to droughts, or income. These factors could explain why residing near the coast is associated with a longer life expectancy, in contrast to people who live near inland waters. “Pollution, poverty, lack of opportunities to be physically active and a greater risk of flooding are the main triggers for these differences,” Yanni Cao indicatedco-author of the study. Correlation or cause? Fits remember that the existence of a correlation does not always imply the existence of a direct (or even indirect) causal relationship. For example, if income is the determining factor, this causal relationship could take different forms. A possible route would start from the fact that the coastal areas they would be more expensiveso they would attract people with more income, income being a factor that we know affects our life expectancy. Another possible way would be that coastal areas generate higher incomes by offering more job opportunities, and these incomes would again be the determining factor in longevity. In both cases the mediating factor is the same, but the causal relationship is not. In Xataka | Why it is hotter in cities than in the countryside: the urban heat island effect In Xataka | Perhaps aging better does not depend only on the body: science is also beginning to study the effect of art and culture Image | Emiliano Arano This article was originally published in August 2025

Searching for extraterrestrial life has an unexpected new enemy: neighboring black holes

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At the time of search for habitable exoplanetswe usually take into account factors such as whether they are within the habitable zone of their star or whether they have a sufficient amount of water. However, there is another parameter that has not been taken into account until now and that, according to a recently published study, may be decisive: the presence of supermassive black holes in the vicinity of the planet. Even distant black holes. This study, published in The Astrophysical Journalpoints to two types of winds generated by supermassive black holes. Some driven by moment and others driven by energy. The former are lighter, but the latter can be intense enough to leave a nearby exoplanet without an atmosphere. Since the atmosphere is indeed an essential ingredient for life, we should be paying much more attention to large black holes. In fact, if these winds are sufficiently energetic, an exoplanet could be affected even by a black hole located at a great distance. Much more than a living area. Generally, to search for habitable exoplanets, it is taken into account that they are within what is known as the habitable zone. This is a region that is at the right distance from its star so that it is neither too hot nor too cold and therefore the water can remain liquid. In recent years, much more specific factors have been taken into account, such as the proximity of supernovae. These stellar phenomena release so much radiation that it can sterilize life on a planet. They also emit shock waves so large that they can destroy their atmosphere. Since supernovae may be key, the authors of the recently published study also wanted to explore the role of black holes. What they found is very relevant to the future search for habitable planets. Active galactic nuclei. This study focuses on active galactic nuclei. That is, supermassive black holes, with masses billions of times greater than that of the Sun, that are actively feeding. That is, they continue absorbing matter into themselves. But, as is well known, black holes do not only absorb matter. There is also some radiation and particles that are released abruptly, giving rise to something known as jets. The movement of these particles also forms winds that can affect what happens around them. Based on the hypothesis that these scientists had, the more massive a black hole of this type is and the more it is feeding, the more energy it must release, so that the atmosphere of possible nearby exoplanets heats up more, its molecules move faster and escape more easily into space. Therefore, the atmosphere breaks down faster and its probability of habitability is lower. Unlike supernovae, which release energy much more abruptly, in this case it would be done in a sustained manner, so there may be more consequences. The two types of wind. Through the development of simplified models, it was observed that galactic nuclei release winds that, upon impact with the interstellar medium, divide into two streams. If they cool, they cannot expand, so they will have almost no energy. These do not propagate efficiently and have a limited effect on the galaxy. On the other hand, if these winds do not cool, they expand like a bubble, releasing a large amount of energy that can sweep the galaxy and affect the atmosphere of exoplanets along the way. These are the truly problematic ones, so it would be necessary to take into account whether there are any in the vicinity when choosing exoplanets that are candidates for hosting life. Also the ozone layer. It has been seen that these black holes can also release nitrogen oxides that affect the ozone layerin case a planet has it. If this is the case, it does not mean that there is not necessarily life, but it would be limited to the oceans. It would be another factor to take into account. With all these parameters, we can get a much more precise idea of ​​which planets could truly be habitable. Searching for life in the Universe seems to be like looking for a needle in a haystack. But the more we know, the smaller that haystack will become. Images | NASA’s Goddard Space Flight Center/Jeremy Schnittman, cmglee In Xataka | The James Webb has broken another historical record: a supermassive black hole older than expected

We present Xataka Life, our new YouTube channel on home automation and technology to transform your home

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2026 comes full of news in Xataka. If just a couple of months ago we announced the launch of Xataka Xtra, today we bring a new project called Xataka Life. In this house we have been talking about home automation, connectivity and devices for the home for a year, an increasingly relevant category in the world of technology and that, through Xataka Lifewe will explore in video form. Because Xataka Life is, precisely, a YouTube channel. One in which we will discuss topics related to home, home automation, savings and products that, little by little, have been finding a place in the homes of more and more people. We talk about lighting devices, air fryers or robot vacuum cleaners, to name just a few. What changes on the Xataka YouTube channel? Absolutely nothing. This channel will continue to operate as before with the content we already publish. Xataka Life is an additional space that allows us to delve into a topic as complex, but at the same time so exciting and interesting, as technology for the home. As it could not be otherwise, Xataka Life expands beyond the long format of YouTube, so you will also be able to short content on @xatakalife on Instagram. If you like the sound of it, we invite you to follow us on Instagram and, of course, to subscribe to Xataka Life on YouTube. We continue!

Astronomers have no doubt that there is extraterrestrial life. Mathematics says that it will take 1,500 years to find it

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We have been sending signals to the cosmos for almost a century through high-power radio transmissions or even with military radars that exist around the entire planet. Little by little, humanity has been creating an electromagnetic “bubble” that expands at the speed of light, but unfortunately for some, we have not yet received a response to all these signals, and it is easy to fall into pessimism about the absence of other living beings beyond our atmosphere. The mathematics. The question here is not if we will connect with extraterrestrial intelligence, but when. And here the scientific community has great optimismsince the astronomical community is not based on UFO sightings, but on pure statistics. Here institutions like SETI They have been scanning the sky for decadesand although there is still no evidence of interference or signals of artificial origin, the conviction that we are not alone is stronger than ever. The bubble. To understand why scientists are so sure of this, you first have to look at the scale of the problem in our Milky Way, which is 100,000 light years across. This monstrous figure collides with our radio bubble that barely touches 100 light years, so on a galactic scale, we have not even crossed the street. This is where the famous Fermi paradox comes into play, which suggests that, if the universe is so vast and old, there should be someone around us, and that is why the question this researcher asked went down in history: where is everyone? The answer most supported by modern astrobiology is based on the “Mediocrity Principle”, an astronomical concept that maintains that there is nothing special about Earth and suggests that, if life arose here under certain physical and chemical conditions, it is statistically inevitable that it has arisen on a fraction of the billions of exoplanets that orbit habitable zones in our galaxy. Investigation continues. In 2016, an influential study from Cornell University put numbers to this paradox. To do this, the Drake equation was crossed with the expansion of our radio bubble with the aim of calculating how far our signal would have to travel to reach a sufficient number of stars to guarantee, by pure statistical probability, an answer. The result yielded a figure that has become a recurring reference in spatial dissemination: contact should not be expected before about 1,500 years. According to this mathematical model, for our signals to reach extraterrestrial ears requires that we cover at least half of the galaxy. Until then, it will seem like we are alone, even though the universe teems with life. Where do we look? While the 1,500-year clock continues to tick, scientists are not standing idly by, and that is why we have initiatives like SETI that they are not just looking to hear somethingbut to understand how we should listen to it. And for decades, the search for life has focused on very specific radio frequencies, highlighting the famous 1420 MHz hydrogen emission line, assuming that any advanced civilization would use that universal frequency to communicate. But… What if it’s not like that? New approaches aim to diversify the search towards broader technosignatures, since it is no longer just a matter of searching for an intentional “hello” in the form of a radio wave, but rather detecting electromagnetic pollution from other civilizations, the use of optical lasers for interplanetary communication, or even searching for signals at low-frequency radio frequencies that until now had been ignored or discarded by terrestrial interference. Images | Graham Holtshausen In Xataka | If we want to find extraterrestrial life, we already know where in space we should look: the “terminator zone”

We have been searching for extraterrestrial life for decades. According to these astrobiologists, we have been doing it wrong all this time

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We are very used to hearing that someone has found possible signs of life in space. Then life is never found, but the trail seems to be there. All of these findings often end up being false positives, something astrobiologists are more than familiar with. However, According to a study just published in Nature Astronomy, They could be overlooking false negatives and that would be serious. Pass life long. What the authors of this study point out is that false negatives could be more common than we think. That is to say, many of the times when it is clearly concluded that there is no life in a place in space, it could be that it did exist, but it had been passed by without being detected. The causes. There could be three reasons why these false negatives occur. On the one hand, no traces of life are preserved. That is, it exists or has existed, but has not left a detectable trace. It could also be that this fingerprint is difficult to detect. Or, perhaps, that the methods used to detect it have limitations. Along these lines, the authors of the study give an example. Let’s imagine that there is a living being that, through its metabolic reactions, generates some gas that is understood as a trace of life. Maybe oxygen or methane. But let’s also imagine that there is a geological activity in that place that captures that gas from the environment. I wouldn’t have time to measure it. Therefore, the detection of life would have to be covered from other points. The risks. There are two main risks of not paying attention to false negatives. On the one hand, instruments that would help find even more traces of life would be deprioritized. If we do not find anything that justifies its development, we limit the possibilities of continuing searching. On the other hand, if life is not adequately searched for, resources from other planets where such life is found could be exploited. We would destroy it before we even knew it existed. Solutions. These scientists believe that searching for patterns using artificial intelligence could be an option. If the usual methods have not worked so far, perhaps we should ask an algorithm to detect patterns that have gone unnoticed to find new search paths. Along the same lines, it would also be necessary to study the terrain better and pay attention to anomalies. For example, if an unconventional type of oxidation is detected on a planet, inexplicable with what we know on Earth, it could be that it was associated with some form of life. It may not look like the oxidation carried out by terrestrial living beings, but who says it has to be the same? You have to think outside the box. Combine different types of work. In short, these scientists consider that to adequately search for life it is necessary to combine laboratory experiments with modeling and field work. But, above all, it is important to change the questions we ask ourselves. What if it has already been found? In 2019, a former NASA scientist told in an article for Scientific American that, according to himhis agency found life on Mars, but accidentally destroyed it. Supposedly, it all happened in the 1970s, in an experiment that was part of the Viking mission. This consisted of depositing nutrients in the soil and checking if gases typical of microbial decomposition were produced. Then, to ensure that it was not a coincidence, they would repeat the process, but adding a substance lethal to living organisms to the soil. In that case, gases should not be produced. And no, they were not produced, so there was something alive generating the gases. It was great news, but NASA did not publish that result, because when trying to replicate the experiment it came back negative. In science it is very important to replicate the results, so they concluded that it must have been a false positive. However, this former member of NASA, Gilbert V. Levin, believes that they destroyed life unintentionally and that is why they could not replicate it. This is no longer an anecdote. Most likely, they would not have found life. However, this story shows that we are always more predisposed to false positive than false negative. The focus would have to be changed a little. Maybe then we will finally find some life beyond our own planet. Images | Eric Erbe and Christopher Pooley (illustrative image of E.coliit has nothing to do with the study)/ Brett Ritchie (Unsplash) In Xataka | Life on Earth underwent a spectacular change 540 million years ago. We have a new explanation why

NASA has looked at Torrevieja from space and has seen a huge mass of pink water essential to finding life on Mars

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From space everything looks different. In fact, distance allows us to distinguish strange shapes, such as the Great Dam of Zimbabwe or the eye of the saharabut also colors that go more unnoticed at ground level. Thus, on June 7, 2021, an Expedition 65 astronaut aboard the International Space Station pointed his camera toward the southeast of Spain and took a photograph that looks like a watercolor: Mediterranean blue, a muted green and an intense pink reminiscent of quartz. The color palette is finished off by the white reflection of the sun. The three colors correspond to bodies of water a few kilometers from each other, in Alicante: the Mediterranean, and the saline lagoons of La Mata and Torrevieja. What seems like an aesthetic coincidence is actually chemistry visible from orbit. Each tone reveals something: the degree of salinity, which microorganisms dominate the water, and in what fragile balance they coexist. The lagoons of La Mata and Torrevieja. The Torrevieja lagoon has been used as a salt mine since the 13th century and today are the largest salt producer in Europe, with an average of 650,000 tons per year, a figure that varies depending on solar radiation, wind and precipitation. It does not function as a natural lagoon, but as an industrial system where water moves according to production needs. The La Mata lagoon acts as a prior concentration chamber: receive sea ​​water through artificial channels and runoff from intermittent streams of the Sierra de San Miguel de Salinas. From there, the water is pumped to the Torrevieja salt mine, where brine from the Pinoso salt diapir through a 55 kilometer pipeline. The result is that the concentration of salt in the Torrevieja lagoon can overcome 260 grams of salt per liter, much more than the 38.5 g/liter Mediterranean that bathes its coast. Two adjacent lagoons but with completely different chemical worlds. Why do they have such different colors?. Each time water of different composition is pumped to produce salt, the chemistry of the system is altered, which determines What organisms can live and in what quantity. Two lagoons a kilometer apart, two different microbial communities and two opposite colors. The pink color of the Torrevieja lagoon is produced by microorganisms. More specifically, in conditions of high salinity and intense solar radiation, the microalgae Dunaliella salina accumulates β-carotene as protection against light. The halophilic archaea that share the lake reinforce that tone: they have red pigments distributed throughout their cell membrane, which makes them visually more decisive in the final color of the water. In La Mata, the lower concentration of salt favors a different microbiota where chlorophyll predominates over carotenoids: that explains the green color. Context. The salinity gradient between both lagoons goes beyond chemistry: it is what allows a different and exceptional biodiversity. The wetland houses up to 400 taxaten species of threatened birds and one of the most important Audouin’s gull breeding colonies in the Mediterranean. Without that difference in salinity, many of those ecological niches would disappear. The NASA image is also more than a photograph: it portrays the fragile balance between industry, microbiology and conservation that climate change is already testing as temperatures rise and salinity fluctuations alter the living conditions of Dunaliella salinaor what is the same, that that striking pink color seen from space could disappear. Why is it important. Dunaliella salina is the organism that supports the base of the food chain in hypersaline lakes around the world. Since 1966 it has been grown commercially to produce β-carotene, which has applications in pharmacology and cosmetics. But it is also an organism that NASA has on the radar because it constitutes a form of life in extreme conditions. It should be remembered that the data from the Perseverance rover indicates that there were hypersaline waters in the Jezero crater of Mars. Studying life in these types of lakes helps understand the potential in these old Martian lakes. What makes Torrevieja pink is the best laboratory we have to know what to look for on another planet. In Xataka | 60 years ago, NASA took a look at the Sahara from space and found a very strange “perfect eye” In Xataka | Europe has been watching Colombia for a decade from space and what it has seen is a tragedy: the death of a glacier Cover | POT

The mission is to teach them to work in real life

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For a long time, the big conversation about artificial intelligence has revolved around models capable of summarizing, programming or generating images. But when we take that ambition to the physical world, everything changes. A robot does not learn to work just by reading instructions: it needs to observe, repeat, fail and accumulate data on real movements. That is why the next frontier of robotics is not only in manufacturing more agile bodies or more precise hands, but in building the entire system necessary to teach them to act outside the laboratory. This system is beginning to take shape in Fujian, where the province’s first large data collection factory has been launched in a test phase. According to CCTVthe facility is located in Area D of Fuzhou Software Park and has been created by Fujian Jufu Technology. There, almost 30 robots follow the instructions of different operators, described by Chinese sources as “teachers”, to practice tasks such as cleaning tables, sorting fruits and vegetables or disposing of parcel boxes. The mechanics of that “school” are relatively easy to imagine, but very demanding underneath. Operators wear virtual reality devices and operate controls to guide the robot during each exercise. When the operator raises his arm, the machine reproduces the gesture and, for example, grab a paper cup to place it on top of another. The important thing is not only that it completes the action, but that each movement, joint angle and clamp pressure is recorded by cameras and sensors. The school where robots learn with real data One of the least showy parts is also one of the most decisive. The tasks we see in the video, such as cleaning a table or picking up a glass, seem simple because we do them almost without thinking. For a humanoid, on the other hand, each gesture requires a specific sequence of physical decisions. Data collection engineer Jiao Shiwei explained to Fuzhou News that even the smallest movements need to be learned through data, and that each action must be designed according to the characteristics of the robot itself to find the most suitable trajectory. The key word here is “generalization.” That is, the ability to apply what has been learned when the environment is no longer identical to the training environment. Shiwei summed it up with two very basic actions: pick up a glass and clean a table. If the object, surface and stain do not change, the robot has it relatively easy. But in a house, a factory or a service space, almost nothing is repeated the same. Hence, data collection workers introduce variations in glasses, tablecloths and tables to expand the scope for learning. The bottom line is that robots are also entering their own race for data. In other areas of AI, much of the progress was based on digital material already available. In robotics, on the other hand, many of the examples must be generated from scratch, with real machines, real objects and movements repeated over and over again. Xinhua puts the problem in these terms: the bottleneck of humanoids is no longer concentrated only in the hardware, but in how to continue perfecting their “brain” through training in application scenarios. The industrial reading of the project helps to understand why these small tasks can end up becoming infrastructure. Chen Yishi, CEO of Jufu Technology, told Fuzhou News that these types of factories provide support for end-to-end models and implementation in vertical scenarios. The idea is that an AI robot does not function as a traditional machine limited to a fixed sequence, but as a guided system capable of make decisions on the body from real training. The company is also recent. Jufu Technology was founded in September 2025 and presents its activity as a combination of data factory and self-development. Its objective is not limited to accumulating examples of movement, but to create around that base a local ecosystem of algorithmic talent, data and collaboration with the industrial chain. Yishi, for his part, pointed out that its future products aim at industrial manufacturing, safety inspection, research and education, although sources present it as a roadmap, not as an already consolidated deployment. Images | Jufu Technology | Xinhua In Xataka | The ‘Chinese Netflix’ has designed a plan for AI to generate the majority of its content within five years. It sounds risky

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