sun

30 years ago we laughed at China and Japan for their obsession with sun protection. Now we’re following your path

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If you travel to Qingdao or any other beach in China, you may come across bathers who, in addition to bikinis, sandals and glasses, look colorful ‘facekinis’. That’s how it was at least a few years ago (even in 2025), when this peculiar garment that covers the entire face to protect it from ultraviolet rays gained popularity in the middle of a heat wave. In Europe, the image of Chinese women with their heads in XL swim caps that only leave their eyes and mouth visible was interpreted as an eccentricityone more proof of the aversion of Asians to tan. On the beaches of Spain it may not be common see ‘facekinis’but an idea is beginning to sink in: cultural issues aside, Chinese, Japanese and Koreans may not have been wrong when they did everything possible to protect themselves from the sun. “It is very frowned upon”. The facekini It is its most obvious (and graphic) demonstration, but it connects with a much larger phenomenon: not everyone values ​​tanning in the same way. Vincent Coëffé, from the University of Angers, explained it a few years ago in an article published in The Conversation: The prospect of sporting a tan skin tone may sound great in California, but things are quite different if you talk to an Asian. “Light skin continues to be viewed favorably in Asian cultures (China, India, Japan, Korea…), to the point that exposing the body to the sun is perceived as a subversive act,” comment coffee, geographer and tourism expert. “In China, tanning is very frowned upon, especially if it alters the female body, particularly influenced by the ideal of ‘milky’ skin.” Tanning is becoming globalized and it is increasingly easier to find Asians sunbathing both abroad and on the beaches of their countries, but there is still an important cultural gap with respect to the West. Why the hell do they do it? These differences in sun exposure explain why for decades, in countries like Spain, we have seen with a mixture of fascination and incomprehension Asian tourists walking down the street in the middle of summer, fleeing the ultraviolet rays like the plague. It caught our attention that, in addition to caps and sunglasses, they wore gloveslong-sleeved t-shirts, arm warmers, sun-protective clothing and umbrellas. “Why does everyone use umbrellas on the streets of Japan? Is it very hot? Do they protect themselves from the sun or is it extremely hot?” I asked intrigued a traveler in August 2025 in the ‘Backpackers in Japan’ Facebook community. The person writing this had the opportunity to travel to Cairo a couple of years ago and one of the details that most caught his attention, in addition to the monuments of Ancient Egypt, was seeing Korean tourists with very white skin walking around with umbrellas and long dresses that covered their arms and legs. Nothing to do with us Spaniards who walked under the sun in shorts and t-shirts. Lesson in humility. In Benidorm, Malaga, Barcelona or any other beach destination in Spain it is still very difficult to meet someone with their face covered by a ‘facekini’, but it is just as undeniable that something is changing. It is less difficult to find people who opt for long sleeves and sun protection pants (even muffs) in the hottest moments and, above all, no one is surprised anymore when they come across people who cover themselves with umbrellas. We told you recently: it is increasingly common to see Spaniards walking at five or six in the afternoon in July umbrella in hand. Also parents who, before going to the beach or the river, dress their young children in sun protection shirts. Umbrellas, t-shirts and more. Umbrellas may be the clearest demonstration that we are changing our way of relating to the sun, but it is certainly not the only nor the most important one. A quick search in the newspaper library arrives to find interviews with experts determined to debunk hoaxes and who warn of the risks of sunbathing without protection, the threat of melanomas, burns… They speak because there is an underlying problem, but the fact that they do so also demonstrates a growing sensitivity. It’s not about changing our cultural perception of tanned bodies, but that the message of experts is getting through who warn that, when 20, 30 or 40 years ago we looked strangely at Asians who protected themselves from the sun at all costs, we were the eccentrics. What is ‘strange’ is not walking around with an umbrella and protective clothing on a July day at five in the afternoon. The ‘strange’ thing is deliberately punishing our body, with all the risks that entails. “The Sun is an electromagnetic radiation that, when it reaches our skin, will produce mutations in our nucleic acid, and these mutations can initially be canceled by our body,” already warned in 2016 Dr. Julián Conejo Mir, Honorary President of the Spanish Academy of Dermatology and Venereology. “Any person who goes to the beach every day develops skin cancer, but our defensive system, if it works, cancels it out.” Great, right? Half. We may no longer be surprised to see someone using an umbrella on a sunny August afternoon, but that does not mean that we have internalized what it means to sunbathe irresponsibly. What’s more, we even run the risk of trusting us and think that protective clothing or umbrellas are infallible tools to keep us safe from melanoma. It is clearly demonstrated by a recent study from Nivea Sun that leaves two percentages that invite reflection: 85% of Spaniards admit to being worried about the effects of the sun on their skin, but nevertheless a large majority (67%) also admit that they do not regularly use sunscreen. Another clear example is in the networks. Thanks to them, doctors can warn of the risks of lying for hours and hours in the sun without protection, but X, Instagram or TikTok also serve as a loudspeaker for people who … Read more

“Much sun damage occurs in daily activities that go unnoticed”

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When we prepare the bag to go to the beach or the pool, sunscreen is one of the first items we have on our list of essentials. This is because we automatically associate these two places with the possible burns we expose ourselves to by being in the sun; However, we forget that in many other daily tasks we also receive sun exposure and we do not apply cream there. The dermatologists They are clear that this is a serious problem in the perception of the risk of exposing ourselves to the sun, since we believe that it only burns on the beach, but not while we walk down the street or drive in the car. This is precisely what dermatologist Miguel Sánchez Viera points out in statements collected by elDiario: “Much of the sun damage occurs in daily activities that go unnoticed” And he goes one step further by stating that “many times the cancer we diagnose today is a consequence of sun exposure that began decades ago.” The invisible danger. The WHO itself and the National Cancer Institute in the United States they are clear than sunlight and other sources of ultraviolet radiation that directly cause photoaging and skin cancer. But the important nuance is that we are facing cumulative damage. This is important, because it is not necessary to lie in the sun to add up “reports” of suffering from a serious skin disease, but walking to work, taking the dog or sitting and having a coffee on a terrace are forms of incidental sun exposure. It is these daily and casual exposures that add up to clinically relevant doses throughout our lives. In the car. One of the clearest examples of this false sense of security is the car, since many drivers assume that being behind glass blocks radiation. But science here suggests that, while modern windshields are designed to block most UVA and UVB radiation, side windows are another story. Multiple studies show that the side glass blocks UVB rays, which are the main cause of immediate burns, but allows UVA rays to pass in very variable proportions. UVA rays penetrate deeper into the skin and are largely responsible for premature aging and long-term cell damage. Therefore, driving or even habitually sitting near a brightly lit window silently contributes to our total dose of UVA. The solar callus. In recent months This concept has become popular pointing out that the skin can “get used” to the sun little by little to generate tolerance without the need for creams that have also been demonized. But health authorities are categorical in this regard, pointing out that the skin cannot safely get used to radiation. The damage to cellular DNA is cumulative and the skin has a “memory” and does not forgive excesses, whether they come from an intense burn in August or from twenty years of moderate unprotected radiation going to the office. In fact, the WHO and the ILO highlight that occupational outdoor exposure has a real and documented weight in the development of non-melanoma skin cancer. Sun protection is non-negotiable and it is advisable to stop associating it only with summer or days at the beach and pool. Applying it before leaving the house and exposing ourselves to UV radiation is imperative if we seek to maintain good dermatological health. Images | Amy Humphries In Xataka | Science warns of the dangerous success of anti-suncream hoaxes on TikTok: “Despite being a minority, this content is influential”

Using umbrellas against the sun is the latest fashion in Spain. Science is clear to what extent it really protects us

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It is increasingly common to see how people walk down the street with an umbrella in their hands to protect themselves from the sun. This habit was something that was very internalized among the Asian tourists that we saw in our cities, but with the thermometers breaking records and the sun beating down on the streets, the umbrella is increasingly popular to prevent the sun’s rays from hitting our skin. The underlying idea. As we say, it may be quite logical to cover ourselves from the sun with an umbrella to prevent ultraviolet radiation from freely affecting our skin, something that can cause serious skin problems. But the real question we should ask ourselves here is: does using an umbrella to protect ourselves from the sun really work? It has been investigated. This is something that has already been measured by specialist dermatologists through from a study published in 2013 in JAMA Dermatology. And the results were quite good, since after analyzing dozens of standard hand umbrellas, it was found that they were capable of blocking between 77% and 99% of ultraviolet radiation. But the problem is that not all umbrellas are the same, since the study revealed that black or very dark umbrellas They are the most effective, consistently blocking more than 90% of ultraviolet rays. This is critical, especially for marketers who are already assigning numerical protection factors to umbrellas. as if they were creams. The invisible enemy. The problem of starting to use an umbrella on our streets to protect ourselves can generate a general doubt: can we go outside without sunscreen? Here the resounding answer from dermatologists is no. The key point that the scientific evidence emphasizes is that shade is a partial protective measure. And the sun not only burns us by projecting its rays directly onto our heads from the sky, but there is also what is known as diffuse and reflected ultraviolet radiation. A common effect. To explain this, we must understand that UV rays bounce off the surfaces around us, such as asphalt, sidewalks, pool water, beach sand, or glass in buildings. All that bounced radiation enters through the sides and under the umbrella, directly impacting our exposed skin. This is the same principle that we apply when we go to the beach, where many people, despite being constantly under an umbrella, come home and have several burns on their skin. This is where we clearly see that ultraviolet radiation also attacks despite being under an umbrella. It’s proven. Here a study published in 2017 tested the beach umbrella against a high SPF sunscreen, and the results showed that the group that relied solely on the shade of the umbrella suffered from sunburn. That is why it is always recommended to apply sunscreen before exposing yourself to ultraviolet radiation in order to avoid burns and the rest of the unwanted effects that the sun has on the skin. In Xataka | Science warns of the dangerous success of anti-suncream hoaxes on TikTok: “Despite being a minority, this content is influential”

Ferrari wants your car to charge itself in the sun while parked. One of his patents explains how

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A few weeks ago, Ferrari dropped a time bomb with its first electric car, Luce. the car has given to talk at lengthand has generated all kinds of opinions. It is also a vehicle that gives us clues about the direction the brand wants to take in this stage of transition that we are going through. But it is not the only one, because if we delve into the intricate world of patents, Ferrari has registered accounts that would raise some eyebrows. One of his last patents registered with the United States Patent and Trademark Office (USPTO) is share the CarBuzz medium, which describes a system of photovoltaic panels that deploy from the roof of the vehicle when it is parked. It is not a typical solar roof and has peculiarities that are worth commenting on. What’s in the patent. The document describe a rollable photovoltaic panel housed in a cavity inside the roof of the car. When the vehicle is stopped and turned off, the panel can be removed through a slot to cover it. According to the technical drawings of the patent, there are two possible positions: one of the panels deploys forward, over the windshield, generating shadow in the cabin; another does it from the rear, under the rear window, oriented at an angle to better capture sunlight. The mechanism uses a U-shaped element and two support rods to extend the panel from its roller. Why do you do it this way and not any other way? The solution may seem complicated (and it is) compared to simply integrating solar cells into the roof, as some manufacturers already do. But Ferrari seems to have its reasons. First, a roll-up panel that is only activated when parking allows the use of a larger photovoltaic surface than would fit on the fixed roof. Furthermore, the patent explicitly mentions the dual purpose of the system, which is to charge the battery and reduce the interior temperature of the cabin when the car is in the sun. Along with this, in the patent is pointed out The system includes sensors and weather data to automate when it is deployed or picked up. Limitations. A solar panel that only works when the car is stationary and in the sun has a very limited range in real life. In the end, the efficiency of these systems depends greatly on weather conditions, the orientation of the vehicle and the exposure time. It is not a fixed place with a large space that allows these losses of efficiency to be counteracted, as is the case in a photovoltaic installation that we can integrate into a house. CarBuzz mention the case of Hyundai, which has been studying this technology for years and that it integrates into some of its test vehicles. The firm stated that its solar roof can replenish between 30% and 60% of the battery per day in ideal conditions, which for a car with more than 300 kilometers of autonomy could cover the average trip to work. But those “ideal conditions” are the exception, not the norm. What it says about Ferrari. As we have mentioned before, the patent appears at a very specific time, as Ferrari has just launched the Luce, its first fully electric car, conceived as a vehicle for everyday use and not just as a sports car for occasional use. It makes sense for the brand to start exploring ways to manage autonomy and charging in different ways than conventional ones. On the other hand, just as points out CarBuzz, adding weight and complexity to the roof goes against Ferrari’s historic philosophy, focused on pure handling and clean design. These are ideas that the brand will have to play with to clarify its priorities in the coming years. However, it should be noted that, at the moment, it is only a patent, not a product announcement. Ferrari, like many other companies, registers technical ideas without necessarily implying that they will reach a production car. Cover image | Matt Antonioli and Ferrari In Xataka | “Solid-state batteries are not the Holy Grail”: the head of CATL explains why it will take us a while to see them in cars

If you’ve ever wondered how much a massive black hole weighs, the answer is that the Sun next to it looks like a marble.

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“What am I going to have for breakfast today?” when will this heat pass” and “how much does a black hole“are those three questions that you will surely ask yourself every day when you wake up. For the first two the answer is uncertain, but for the third a group of researchers from Carnegie Science in California has the answer. Because they have just measured, for the first time, the mass of an inactive black hole that dates back to the early universe and they do not give the answer in tons because it is a figure that escapes human understanding. But they do give the mass compared to the Sun and… well, it’s still not something we can assume. The weight of a black hole. The results HE they published this past Thursday in Science magazine and they are clear: a black hole located in the center of the galaxy MRG-M0138 has about 6,000 million times the mass of the Sun. The mass of our star is 2 × 10^30 kg, equivalent to 332,946 times the mass of the Earth. Does this leave you calmer? Surely not because it is like when they tell us that one company buys another for 75 billion dollars: These are such absurd quantities that it is very difficult to get the idea of ​​what it entails, but this thing about weighing bodies around the universe makes sense. Fascinatingly, MRG-M0138 is a massive galaxy whose light has traveled to our sensors from a time when the universe was only about 3 billion years old. This galaxy is no longer forming stars and the central black hole is “quiet.” The scale spacel. To achieve the measurement, the team at the Californian center used the James Webb Space Telescope (JWST) to track the movement of stars around the cosmic giant. It is not the first time that the mass of a black hole has been calculated, but it is the first time that it has been done with one that is so far away (10,000 million light years from Earth, 15 times further than the previous measurement record) and, in addition, it is the first time that an inactive black hole in a galaxy of the early universe. This speaks very well of the benefits of the JWST, which with its sensors allows a very defined image of extremely distant bodies, opening up a huge range when it comes to studying what surrounds us. The problem with sleeping black holes is that they are invisible. It does not emit light, so it cannot be observed directly. So, to “weigh it,” the researchers used a technique that had already been used before: stellar dynamics. Basically, they look at the speed at which stars move near the galactic center and compare that speed to that of more distant stars. In this way, they infer the mass of the black hole. So that. To continue knowing what surrounds us, basically. Because it is not just about measuring the mass of something so distant, but about understanding the formation around it. Thus, this discovery offers new clues to researchers about black holes and galaxies that were born in the early universe. A look at the future by looking at the past. Because, until not long ago, it had been difficult to prove whether there was a close relationship between the central black holes of these very old galaxies. Recent findings suggest that those denser galaxies were sites of rapid black hole growth early in the history of the cosmos. Furthermore, this research will be the basis for future work that will delve into this relationship and, above all, it will also be the basis for analyzing the data collected by the JWST in other similar galaxies. In fact, although the JWST is a good cosmic “magnifying glass”, in Chile the observatory is being expandedThe Bells‘ which is supported by Carnegie Science and will allow studying stellar movements in distant galaxies in much more detail than what JWST offers. In the end, it is about continuing to understand the universe and studies like this allow us to test theoretical methods to understand how massive black holes formed, grew, shaped the evolution of galaxies and, ultimately, became silent giants. Image | Navid Marvi/Carnegie Science In Xataka | We had always believed that galaxies preceded black holes. James Webb has discovered something else

It is charged by the sun and costs less than 100,000 pesos

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Mexico has just joined in this affordable electric mobility. And the company TT Automotive presented the TT01 a few days agoalso named “Totally Tlaxcalteca”, a small electric and solar vehicle manufactured almost entirely in the state of Tlaxcala. The meeting was at Hacienda Soltepec, in the municipality of Huamantla, where businessmen, state and federal authorities, and representatives of the automobile sector attended. It is the pride of the region, since the project boasts that around 80% of its components are of national origin. We tell you everything in detail. Why is it important. The TT01 is proposed as one of the cheapest electric cars that can be found today in Mexico. According to the brand, its price part of the 99,000 pesos (about 5,000 euros to change) and goes up to 160,000 pesos in its most equipped versions. That entry figure places it even below Oliniathe electric car project promoted by the federal government of Claudia Sheinbaum, which has not yet reached the market. So basically the company has preempted the state initiative. Simple and without airbags. The TT01 stands out from the rest of the urban electric cars in that it uses a charging system using solar panels integrated into the roof. According to their creator, Edgar Guzmán Carreto, founder of TT Automotive, these panels generate up to 50 kilometers of autonomy after eight hours of exposure to the sun. The car can also be plugged into any conventional household outlet. The company talks about a total autonomy of up to 250 kilometers per charge, a maximum speed of 50 km/h (little, but designed especially for the city and short trips), capacity for five passengers and a body with a high-strength steel structure. The Herald of Mexico itself says that this first model incorporates very very basic security measures. And because it doesn’t have, it doesn’t even have airbags. Between the lines. In the presentation, Guzmán Carreto counted that TT Automotive was born “not only as a company, but as a declaration of principles”, with the idea of ​​putting technology at the service of people. The approach is to have a cheap car ready, manufactured locally and aimed at families, delivery people and neighborhood transportation. The assembly is carried out in the Xiloxoxtla Industrial Park, which, according to those responsible, should generate employment and strengthen the supplier chain in the area. Pay attention to the nuances. The TT01 that was shown in Huamantla is still a prototype, and there are details that deserve our attention. On the one hand, the vehicle can also be recharged with gasoline in the event of possible unforeseen events. On the other hand, the company itself recognizes that it is still looking for investors to be able to manufacture on a large scale. Guzmán Carreto estimates that in about six months they would be able to produce in series, with an initial goal of 20 units per week and first sales through its website. It is worth remembering the history of delays of the project, since it was first announced in September 2025 with the promise of going on sale in December of the same year, and in the end it was postponed until it was officially presented a few days ago. And now what. The company also works in other variants with greater speed and pricewith versions for personal, family and distribution use, according to pv magazine. Now we need to know if TT Automotive meets the deadlines, since if so it would be ahead of Olinia’s proposal. It remains to be seen whether this type of vehicle, so special and with very basic security systems, will arouse interest in the region. Cover image | Automotive Mexico News In Xataka | Mexico has a brutal potential for solar energy: at the moment it has begun to exploit it with agrovoltaics

A medieval poet and some buried trees have just revealed something very strange to us about the 13th century Sun

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At the beginning of the 13th century, the Sun was passing through a solar cycle much shorter than those that exist today, but extremely intense. Having such specific details is complicated for such a distant time, when scientists did not have instruments to measure this type of activity. However, there is something that today’s scientists do have and that has helped them detect this event: a book of poetry and many trees. Art and science. A team of scientists from Okinawa Institute of Science and Technology has described this event using two types of data. On the one hand, a poem written in 1204 by the Japanese writer Fujiwara no Teika. On the other hand, the observation of the rings of buried tree trunks in northern Japan. The conclusion is clear. While today solar cycles are usually around 11 years, back then there were some 6 or 7 years, but the activity was high enough to lead to the formation of auroras in Japan. A proton explosion. When solar activity is very intense, phenomena such as solar flares or the coronal mass ejections. The first is a sudden release of electromagnetic radiation from the solar surface, while the second consists of the expulsion of matter, normally charged plasma particles, from the Sun’s corona. Associated with these phenomena, proton explosions occur, in which these charged particles move at high speed. rare isotopes. Normally, a good part of these charged particles and cosmic rays fail to pass through the Earth’s magnetic field. However, when they are very intense they can reach our atmosphere in greater quantities and interact with the gases in it. In this reaction, isotopes such as beryllium-10 or carbon-14 can be formed. These are beryllium or carbon atoms with a different number of neutrons in their nuclei than the beryllium and carbon that are most abundant on Earth. Knowing this process is useful, because it can give us clues on two levels. On the one hand, beryllium-10 is deposited in ice sheets, while carbon-14 It oxidizes, transforming into carbon dioxide and becoming part of the carbon cycle. In this cycle, living beings incorporate it into their cells in different ways. For example, plants do this through photosynthesis. And this is where what has been so useful to these scientists begins. Solar dating and meteorology. Carbon-14 is often used to date fossils, since they come from living beings that once incorporated that isotope into their tissues. The moment a living being dies it stops incorporating carbon-14. From that moment on, it begins to disintegrate at a known rate, so it can be estimated approximately when it died. The point is that, beyond that, if carbon-14 levels are unusually high, it can also be determined if there was an extreme solar event. The poem describes a dawn The poem. in his diary Meigetsukithe poet Fujiwara no Teika described the observation of “red lights in the sky over northern Kyoto.” This city is at a latitude too far south for auroras to form, but that is clearly what it describes. The auroras They are the result of a type of interaction between the gases in the atmosphere and the charged particles of the Sun that causes the emission of visible light. They are normally formed at the poles, as they are the points on the Earth where the magnetic field is most vertical, so that it acts as a funnel, so that these particles can pass through it. When they occur far from the poles it is because solar activity has been very intense and the resistance normally opposed by the magnetic field has been exceeded. What the trees tell. The rings of tree trunks are a kind of natural calendar. They are formed from the inside out, so we can count them and calculate how the years have passed. For this reason, the authors of the study that has just been published They wanted to analyze the equivalent buried tree rings at the beginning of the 13th century. In the rings from the period from winter 1200 to spring 1201 they found an increase in carbon-14 levels. This also agrees with the levels of beryllium-10 found in ice deposits from that same period. Everything agrees. Also in China. There are historical records from the time when Chinese astronomers also described red lights in the sky. Therefore, it seems clear that there were auroras at unusual latitudes. A very rare case. The most curious thing about all this is that this phenomenon did not occur at the peak of the solar cycle. It possibly took place around its periodic minimum. If there was less activity, why so much aurora and carbon-14? This is something that, at the moment, scientists have not been able to explain. Perhaps there were also many auroras at the peak, but no poet stopped to write about them. Tree rings would have to be analyzed to see what carbon-14 tells us. What is clear is that the Sun was burning in those medieval times. Image | Masaaki Komori (Unsplash)/Wikimedia Commons | Kush Dwivedi (Unsplash) In Xataka | A sunspot 17 times larger than Earth caused red auroras across half the world. It is a very rare event

Tenerife was known for the sun and its beaches. It will soon house one of the five most powerful supercomputers in Spain

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Tenerife will have a new supercomputer. I already had two with the names of Teide and of Anagaand they will now be joined by a new and promising project called the Atlantic Supercomputing Center. With it, it is hoped to turn the Canary Islands into a new nerve center for retaining and attracting talent in the technological field. Up to 10 million euros of investment. This new project It is a collaboration of the Cabildo of Tenerife and the Institute of Technology and Renewable Energies (ITER) with the German technology giant Bechtle. It will have an initial investment of 5.5 million euros, which could rise to 10 million as its four phases are deployed (two for storage, two for computing) oriented by the demand for the center and its resources. The expansion is flexible and Bechtle will supply the latest technology available at the time of project execution to avoid the use of obsolete components. The fifth supercomputer by power in Spain. By integrating with the existing nodes, the Atlantic Supercomputing Center will achieve a combined power that will place it as the fifth most powerful supercomputer in the entire national territory. It is also expected to enter the prestigious TOP500 list which brings together the most powerful supercomputers from around the world. Hybrid architecture. The rise of AI has meant that the project has an architecture that will allow working with both more conventional workloads and those intended for projects in the field of artificial intelligence. Thus, its architecture will be hybrid: CPU: although it has not been specified which processors it will use, it has been indicated that the supercomputer will have 13 nodes with 288 cores each, which will allow for more than 3,000 process cores to execute scientific tasks, for example. GPU: there will also be four specialized nodes with a total of 32 Nvidia H200 NVL cards, which will allow training of large language models and the development of AI projects. Performance: this expansion is expected to provide between 1.3 and 1.4 PFLOPS of global computing power (close to 300 TFLOPS in CPU and almost one PFLOP in GPU), indicated those responsible for the Cabildo de Tenerife and ITER. Hours instead of months. The president of the Cabildo, Rosa Dávila, stood out that local laboratories, the University of Las Palmas de Gran Canaria and the University of La Laguna among others will be able to access these resources to be able to compute in hours what previously could take months. Juan José Martínez, from ITER, recalled how during the pandemic the Teide-HPC supercomputer It was one of the five centers in all of Spain who sequenced and monitored the biological variants of COVID-19. From the audiovisual sector to the aerospace sector. Among the sectors that will benefit from this computing capacity will be those associated with the audiovisual industry. The Teide-HPC infrastructure was for example used to render scenes from the film ‘Tadeo Jones 2: The Secret of King Midas‘. It will also be the core of the project management of canary satellite constellation. Attracting talent. This facility also wants to become an element that reinforces the role of the Canary Islands as a technological hub. Having a supercomputing infrastructure like this wants to help attract technology companies that promote highly qualified young employment and therefore retain and attract new talent in this sector. Efficiency. Although the power of Teide HPC will greatly benefit from these new resources, advances in photolithography will mean that the new supercomputer will occupy only a quarter of the previous physical space. Its environmental impact will also be zero: the infrastructure will be located in ITER’s own facilities, and will be powered entirely with clean energy from its wind farms and photovoltaic plants. Image | POT | ITER In Xataka | The muscle of many supercomputers depended on GPUs: China is trying another way to surpass the best in the US

Greece wants to prevent its beaches from being suffocated by mass tourism. So you’ve declared war on sun loungers

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Greece faces a dilemma. One well known in other countries that, like Italy, France, Holland, Japan either Spainhave become dream destinations for travelers from all over the world: their tourist attraction threatens to make them die of successsuffocated by overcrowding. To avoid this, the Greek Government has decided to shield around 250 beaches to maintain them as “virgin” sandbanks. In practice, this means that things as basic as renting umbrellas or sun loungers cannot be done there. “Virgin beaches”. If Greece is one of the most visited countries in the world and becomes the summer resort of millions of tourists It is basically because of four things: its Mediterranean climate, its historical heritage, its gastronomy and (above all) its landscapes and beaches. The Government knows this and that is why some time ago it prepared a list of “Virgin Beaches” either “unauthorized”coastal areas in which the authorities apply more restrictive control. Goodbye umbrellas, sun loungers and motorcycles. Among other thingsin these protected spaces it is not permitted to rent umbrellas and sun loungers, set up new bars or install music equipment and speakers. Nor organize events in which they participate more than ten people or use jet skis. In short: they are beaches open to the public and where you can lie down and sunbathe, but unlike the busiest areas you will hardly find commercial services or of course large tourist infrastructures. The idea is to preserve them in their natural state. The key figure: 251. Nothing new so far. What is striking is that the Greek Ministries of Economy and Environment have decided to expand the list of beaches to which this level of protection applies. Specifically, they have added 13 new sandy beaches, according to the local presswith which the ‘armored’ coves and beaches go from 238 to 251. The data is interesting in itself, but above all because the trend that draws: In recent years Athens has been expanding its protected coastal strip. From the 198 beaches in 2024 it went to 238 in 2025 and to 251 that will be monitored this summer. What is the objective? Don’t kill the goose that lays the golden eggs. Greece is full of idyllic beaches, but the mix of overtourism and uncontrolled commercial exploitation, with sandy areas covered by beach bars, umbrellas, sun loungers and rental jet skis, can make it less attractive. The Government also appeals to the need to protect the formations and ecosystems of the Greek coast. “The amendment seeks to effectively protect beaches that have a particular aesthetic, geomorphological or ecological value, as well as preserve the types of habitats and species of flora and fauna found there,” they argue. Earrings from the Natura Network. “Specifically, the coastal zones and beaches located in areas included in the National Catalog of Areas of the European Ecological Network Natura 2000 are expanded, in which use concessions are already prohibited, as well as any other action that could endanger their morphology and integrate with regard to their ecological functions,” duck the Government. To clear up doubts, the Greek authorities have published a list in which you can consult the beaches where businesses dedicated to renting umbrellas, sun loungers or motorcycles have been banished. These include sandy areas of Koufonisia, Chania or Lefkada. Some of the beaches added to the list have been in the center of controversy in recent years precisely because of tourism development plans that included new structures. The other data: 38 million. It is no coincidence that Greece decides to reinforce the care of its beaches right now. With the international tourism boom As a backdrop, in 2025 the country received about 37.98 million of foreign visitors (not including cruises), 5.6% more than the previous year. That rebound came accompanied by something else: an intense flow of billions of euros. Specifically, it is estimated that last year the income generated by the sector skyrocketed by 9.4% to reach 22.6 billion of euros, a figure that increases noticeably if you add the cruise passengers. These are important data due to their weight… and to understand the zeal with which Greece wants to take care of its sandy beaches, preventing part of its coastline from becoming overcrowded. If the tourism sector has learned anything in recent years, it is how easy it is to die of success. Without going any further, there are already travel guides that advise against visiting Mallorca, Barcelona or the Canary Islands because they consider them points hyper-crowded. Images | Nikos Zacharoulis (Unsplash) and Jorn Idzerda (Unsplash) In Xataka | The Balearic Islands are so desperate with tourism that they are already considering a measure that until now was taboo: a limit on flights

Having a beer in the sun was the problem. The residual hops from manufacturing it are the solution

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When you slather on sunscreen, most conventional sun-blocking ingredients are synthetic. He problem is where the chemical UV filters that make sunscreens effective They are endocrine disruptors.can penetrate the skin and are toxic to coral reefs. So the industry has been looking for years for sustainable alternatives that provide that protection while minimizing the environmental impact. A research team from the University of São Paulo has found a natural alternative that also usually ends up in the trash: the remains of hops discarded after brewing beer. The discovery. It turns out that the hops used in beer production, a waste generated on a large scale, can serve to significantly improve sun protection. Through a process of maceration and percolation in ethanol, the bioactive compounds are extracted from discarded hops and incorporated into sunscreen formulations. When they mixed 10% of this extract with the usual UV filters, the resulting sunscreen multiplied its protection factor by more than three: it went from 53 to 178 in laboratory tests. Interestingly, those used hops performed better than unused hops, although the authors admit that the exact mechanism by which this occurs is still unclear. Why is it important. Approximately 85% of the bioactive compounds in hops remain intact in the material discarded after dry hopping (dry hopping), which turns this waste into a functional raw material that today is mostly thrown away or used as feed. Revaluing it as a cosmetic ingredient reduces the environmental impact of the brewing industry, opens a path towards more sustainable and potentially cheaper sunscreens, and fits directly with the principles of the circular economy. Context. Hops contain a family of compounds with proven properties on the skin: reduce inflammation, neutralize free radicals and even stop enzymes that degrade collagen. Especially relevant is xanthohumol, a polyphenol with antioxidant, anti-inflammatory and metalloproteinase inhibitor properties in dermal fibroblasts. The key is how the hops are processed: when added cold after fermentation, without boiling, the xanthohumol is not thermally degraded and remains intact in the residue, which partly explains why reused material is more active than fresh hops. How they do it. The team left From the remains of hops from a craft brewery, he immersed them in ethyl alcohol to extract their compounds, dried the result and incorporated it at 10% into a standard sunscreen that already contained two conventional UV filters. They then measured how much ultraviolet radiation that cream blocked using international reference equipment, the same ones used by health authorities to certify sunscreens. Yes, but. As the research team itself recognizes, all the results are exclusively in vitro, since they used plates and not human skin. Likewise, there are no clinical trials that study whether the cream is stable over time or whether it can cause irritation. Furthermore, it is not clear why it works so well. As says the coordinator André Rolim Baby himself In the note from the FAPESP Agency, stability studies, standardization of assets and clinical evaluation of safety and efficacy will be necessary before any commercial application. On the other hand, the variability in the composition of reused hops (depending on the variety, the dry-hopping process or its origin) complicates standardization: for a filter to be approved by authorities such as the European Commission (EC Regulation 1223/2009) or the FDA in the United States, it is necessary that there be chemical consistency from batch to batch. In Xataka | We humans like beer. The big question is whether we like it enough to have invented agriculture In Xataka | Spain can tell itself as many times as it wants that it hates Cruzcampo. The figures say a very different thing Cover | Onela Ymeri and Urban Gyllström

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