points

That Iran shot down a US F-15 was something unusual. The problem is that they have opened the missile… and everything points to China

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In 1960, when an American U-2 spy plane was shot down over the Soviet UnionWashington initially believed it was facing a military problem. He ended up discovering that the incident had diplomatic consequences much larger and blew up a summit between the two superpowers. Because sometimes a single downed plane reveals a story much bigger than the battle in which it fell. The takedown that changed the conversation. He downing of an F-15E on Iran last month was, in itself, an extraordinary event. It had been decades since a United States fighter had been shot down by enemy fire, and the rescue movie operation later, with one of the crew hiding for two days in the Zagros Mountains, underlined the seriousness of the episode. However, as investigations continue, the incident is shifting from being a story about Iranian military capabilities to something else: a story about China. According to cited sources by NBC News the suspicion that the plane was hit by a portable anti-aircraft missile (MANPADS) of Chinese manufacture has shifted the focus from the battlefield to a much more uncomfortable question for Washington: to what extent Beijing is helping to sustain Tehran’s military capacity. More important than the missile. From a military point of view, a portable anti-aircraft missile is not a revolutionary weapon. Its appeal lies precisely on the contrary: It is relatively cheap, easy to deploy, and capable of threatening even extremely sophisticated platforms if circumstances are favorable. Hence, what has aroused American interest is not so much the type of weapon used as its possible origin. If suspicions are correct, the shootdown would demonstrate that Chinese technology has ended up participatingdirectly or indirectly, in one of the more symbolic hits suffered by American aviation in years. From that perspective, the discussion then stops revolving around how Iran managed to shoot down an F-15 and begins to focus on what role played China to make it possible. The shadow of broader support. Because suspicions are not limited to the missile. US sources also suggest that China may have provided Iran with radar systems capable of detecting stealth aircraft and access to space capabilities that would facilitate the location of targets. So far none of these accusations have been conclusively proven publicly and Beijing categorically rejects them, but together they paint an image that is worrying in Washington: that of a technological support network which, without involving direct military involvement, could significantly increase Iran’s ability to challenge the United States and its allies. In this context, the downed F-15 becomes tangible proof of a broader phenomenon that US officials have been denouncing for some time. The contradiction of American diplomacy. The situation is especially delicate because the United States simultaneously needs to contain Iran and keep channels open with China. Beijing is the main buyer of the iranian oil and one of the few actors with enough influence to put economic pressure on Tehran. During negotiations to reach a ceasefire, the Trump administration sought precisely that collaboration. But every new accusation on Chinese missiles, radars or satellites used by Iran complicates that balance. Washington thus finds itself in an uncomfortable position: it needs China to contribute to stabilizing the region while accusing it of providing tools that strengthen one of its main adversaries in the Middle East. The real message. That’s why the downing of the F-15 It has a relevance that goes far beyond the loss of a plane. What is at stake is not only the effectiveness of Iranian defenses, but the American perception that more and more regional conflicts are connected to global strategic competition. against China. The investigation on the missile seeks to determine how the fighter fell, but also who was behind the technology that made it possible. In a sense, Washington has opened up the missile to examine it piece by piece, and in doing so has discovered that the biggest questions no longer point solely to Tehran. They aim more and more towards Beijingwhere the United States believes is a growing part of the economic, technological and military infrastructure that allows its rivals to challenge its power in different corners of the world. Image | U.S. Force In Xataka | The US has copied its very cheap drone swarms from Iran and Russia. The problem is what Starlink asks for connecting them In Xataka | The war in the East has reached an unexpected agreement: one where the US does not discuss Iran’s missiles, bombs or uranium

Cases in young people are skyrocketing and science points to our lifestyle

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When we think of patients with colon cancerour mind can automatically go to a middle-aged person with different risk factors behind them. However, epidemiology is documenting a radical change in statisticssince more and more young people are being diagnosed with this type of cancer, which makes us reflect to look for the ‘why’. The experts. Winette van der Graaf, professor of Medical Oncology at the Netherlands Cancer Institute (NKI), points to this new reality and states that “I would never have imagined that I would be seeing patients with colorectal cancer at the age of 19” as collect The Country. With this phrase he gives voice to a global trend that epidemiological studies continue to confirm, since cancer is no longer a disease almost exclusively of old age, and the incidence is growing at a rate four times faster in young people than in older people. An explosion. Data supports the medical concern through multiple international macro studies, such as the one published in 2024 in The Lancet. Here, 50 countries were analyzed and showed that early-onset colorectal cancer (between 25 and 49 years) is increasing in 27 of them. But the most revealing data is in 20 of those 27 territories, where the increase in cases is exclusive to young people or is advancing much faster than in the adult population. The fastest pace is taken by countries such as New Zealand or Chile, growing at 4.0% annually, and Puerto Rico with 3.8%. Furthermore, in 14 countries, including Spain, the United States and the United Kingdom, cases are increasing in young people while remaining stable in those over 50 years of age. Among the youngest. The figures here are scary, since, according to the data From the CDC, data on colorectal cancer among adolescents tripled between 1999 and 2020. If we go into detail, in the 20 to 24 year old group they grew by 185%, while in the 10 to 14 year old age group the growth was 500% as the incidence went from 0.1 to 0.6 cases per 100,000 children. The Spanish case. Here, a study based on real data from the Virgen de la Victoria Hospital published in JCO Global Oncology in 2024 analyzed more than 24,500 patients and found that 22.2% had early-onset cancer, being present before the age of 50. And we can go further, by making a list of the types of cancer that have increased the most in our territory: Sarcoma: increased by 43.4% in young people compared to 28.6% in older people. Kidney: rose 27.8% in young people compared to 20.1% in older people. Testicle: grew by 16.3% in young people, while its incidence fell by 13.1% in older people. Because? Here experts point to a combination of very diverse factors that try to explain it, although none of them is definitive. One of these is an inadequate diet with an increase in the consumption of red meat and calcium-deficient diets that is complemented by a tendency toward a sedentary lifestyle. But in addition, the excessive use of antibiotics could be severely altering our intestinal microbiota, added to the impact of bacterial infections during childhood. And it even goes further by considering the role of the exposure we have since childhood to chemical elements such as pesticides or pollution in general to give it an explanation. Images | brgfx on Magnific Julia Koblitz In Xataka | Neither cure nor die: why the next great revolution against cancer is to make it chronic

Some archaeologists have found 80 tons of stones under the sea. Everything points to one of the Seven Wonders of the Ancient World

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At the end of the 19th century, several fishermen in the port of Alexandria began to accidentally catch huge fragments of stone entangled in their networks. Some were so large and strange that stories circulated for years about giant ruins hidden underwater off the Egyptian coast. Long before underwater scanners or digital archeology existed, the Mediterranean was already hinting that beneath its waters remained buried a monumental part of the ancient world. 80 tons to return a wonder. Archaeologists and divers they have been finding for years huge blocks of granite and limestone under the waters of Alexandria, but the latest works have triggered a fascinating idea: everything indicates that the Mediterranean is returning key fragments of the legendary Alexandria Lighthouseone of the Seven Wonders of the Ancient World. Some of the recovered blocks weigh up to 80 tons and were part of monumental entrances, platforms and gigantic structures that for centuries remained dispersed on the seabed. The discovery is not only allowing us to reconstruct what the lighthouse really was like, but it is also changing many of the theories that existed about its size, its engineering and its final appearance. A gigantic tower that dominated the Mediterranean. The Lighthouse of Alexandria began to be built at the beginning of the 3rd century BC under the reign of Ptolemy I Soter and it was designed by Sostratus of Cnidus on the island of Pharos, opposite the Egyptian port. Ancient sources described a structure of more than a hundred meters higha type of Hellenistic skyscraper visible dozens of kilometers out to sea thanks to its enormous night fire and complex reflective systems. For more than sixteen hundred years it served as a guide for ships arriving at one of the most important ports in the Mediterranean, also becoming a political symbol of the Ptolemaic power and the ambition of the Alexandria founded after the death of Alexander the Great. Some Roman chroniclers even stated that its light was so intense that it could be confused with a star. 3D reconstruction of the Alexandria Lighthouse The sea ended up swallowing the wonder. The structure withstood earthquakes for centuries, but several huge earthquakes between the 14th and 15th centuries they ended up destroying it almost completely. Part of its stones were later reused to build the Qaitbay fortresswhich still occupies the same coastal area, while the rest of the ancient city began to slowly sink under the sea due to geological movements and the relative rise in the level of the Mediterranean. Over the centuries, the lighthouse eventually disappeared beneath murky waters filled with sediment, architectural remains, and huge stone fragments scattered across dozens of underwater acres. For a long time, historians even thought that ancient descriptions of its size had been exaggerated. Remains of a lighthouse in the Mediterranean Sea A gigantic puzzle. Everything began to change when French and Egyptian archaeologists began to systematically map the eastern port of Alexandria in the 1990s. Sphinxes, columns, colossal statues and gigantic door frames weighing up to seventy tons appeared under the water, but recent work from the PHAROS project They have taken the process much further. Only in recent campaigns have rrecovered 22 huge blocks of granite using special cranes mounted on barges, including lintels, jambs and pieces of a hitherto unknown structure that mixed Egyptian architectural elements and Greek construction techniques. Each find reinforces the idea that the lighthouse was not just a functional tower, but a monumental demonstration of the multicultural power of Hellenistic Alexandria. Reconstructed block by block… but digitally. The New York Times said last February in an extensive report that the great advance of the PHAROS project is not only in removing stones from the water, but in virtually rebuilding the lighthouse with a never seen before precision. The researchers have scanned thousands of fragments using photogrammetry to create a “digital twin” capable of recomposing the building piece by piece without continually moving extremely fragile and heavy materials. Thanks to this, engineers and archaeologists are discovering how the blocks really fit together, how they worked the joining systems and what techniques allowed such a gigantic structure to be built more than two thousand years ago. Investigations have also revealed that the lighthouse used advanced assembly systems with clamps and huge interconnected blocks, something that helps explain how it was able to survive so many centuries against earthquakes and storms. The modern Mediterranean like ancient earthquakes. Archaeological work is also carried out in an increasingly complicated environment. The waters off Alexandria have very poor visibilityare full of pollution and suffer a progressive rise in sea level while the coast itself continues to slowly sink. The researchers they warn that the Mediterranean is warming faster than many other regions of the planet and that the accumulation of waste and sediments makes underwater documentation tasks increasingly difficult. Paradoxically, while technology allows one of the greatest wonders of Antiquity to be digitally reconstructed, the environment where its physical remains remain becomes more hostile and vulnerable year after year. One of the Seven Wonders reappearing. The most striking thing of all is that the project has already managed to dismantle many historical doubts about him Alexandria Lighthouse. Researchers now believe that the ancient chronicles probably they did not exaggerate: The tower really must have been as colossal and advanced as classical authors described. The recovered blocks, some almost impossible in size even for modern engineering, are allowing locate monumental entrancesplatforms and structural elements with unprecedented precision. Little by little, under the waters of Alexandria, one of the most famous constructions in all of human history is ceasing to be a myth and once again taking on a real form. Image | PHAROS, SciVi 3D studio, Roland Unger In Xataka | Some 5,000-year-old tombs went unnoticed for millennia. Until we look from the sky In Xataka | The “Gate of Hell” has been burning in the middle of the Turkmenistan desert for half a century. And now it’s fading

How to measure the distance between two points in Google Maps on PC and mobile

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Let’s explain to you how to measure distances in Google Mapsso that you can have better references of how far away the points that interest you are. It is not about measuring distances on roads or paths, for that you can make routes on Google Mapsbut to draw a line between two points and know their physical distance. You will be able to do this to measure streets, roads, or anything you want on the map. A virtual ruler will be generated telling you the distance. We are going to teach you how to do both on the Google Maps website and in the application. Measure distances on the Google Maps website If you are using the Google Maps website, you have to do right click on one of the points of the measurement you want to make. This will open a context menu, where you have to click on the option measure distance that will appear at the bottom. Now all you have to do is click on another point on the map. Come on, you right click on the starting point, and then when you choose the option, click on the final click. This will generate a ruler that will show you the distance between these two points. Now you can continue marking new points that will be joined with the previous ones, and you will be able to see the distance between each of the points. Besides, At the bottom you have a local distance indicator which will tell you the total of the sum of all the distances. Measure distances in the Google Maps app Distance measurement is different in the Google Maps app, since it only shows you the total distance and not point by point. But the way to do it is quite similar. The first thing you have to do is click with your finger on the place on the map that you want to be the starting point. This will open a menu with many options, and in it you must click on the option measure distance that you will have inside at the bottom. Now, there will be an aiming point in the center of the screen, and with your fingers you will have to move until you go pointing to where you want to add new points. When you do, click on the button Add pointand everything will stay the same so you can add new points. At the end, you also have an indicator at the bottom left where it will tell you the total distance that all the points add up. In Xataka Basics | Google Maps: 45 functions and tricks to get the most out of both your website and your mobile app

science points to something that disappears when you roast it

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The world of nutrition and supplements is full of dizzying promises, with products that make miraculous promisesand few have made as much noise in the last decade as green coffee. Often marketed as the definitive panacea for weight loss, this product has flooded herbalists, pharmacies and supermarkets, making it available to anyone who wants to finally achieve weight loss without much effort. However, behind the intense marketing, there is hidden a biochemical reality that goes far beyond advertising slogans and that justifies part of their effect. Although a priori, when we talk about coffee to lose weight, we can go with the idea of ​​the extreme thermogenic effect or the extreme dose of caffeine that activates our metabolism, the reality is different. Here science has a clear answer about its real benefits, pointing to a specific compound that we sacrifice every morning in favor of flavor: chlorogenic acid. What is green coffee? To understand green coffee you do not have to travel to exotic plantations looking for a rare species that produces this product, since green coffee is purely and simply the coffee seed in its natural state, before being subjected to the roasting process which gives it its characteristic black color. Of course, we normally talk about the varieties Arabica coffee either Coffea canephora. If we put ourselves in the ‘normal’ situation, when we roast the coffee beans At temperatures around 200 degrees, Maillard reactions occur. A thermal process that is responsible for generating the characteristic intoxicating aroma, dark color and deep flavor that we can appreciate so much in the morning cup. However, these high temperatures produce a large destruction of bioactive compounds that can help us a lot in our daily lives. That is why logic prevails above all else here: if roasting degrades the healthiest compounds, then we eat it without roasting. And specifically, the element that is most important to us to preserve here is called chlorogenic acid, a powerful antioxidant ester, which is something that we want to preserve above all to reduce the hated oxidative stress that destroys our cells and accelerates aging. In this way, green coffee preserves the three characteristics of this compound intact, becoming an exceptional vehicle for introducing a series of phytochemicals into the body that gives it very interesting properties to achieve the benefits that we will see later. Properties of green coffee As we have said, the chemical composition of green coffee is a gold mine for pharmacognosy. By not being subjected to the thermal stress of roasting, it preserves certain components intact that make it a product with high functional potential. It has a lower amount of caffeine. Contrary to what intuition dictates, green coffee generally contains less than half the caffeine than a cup of conventional black coffee. This means that its stimulating effects on the central nervous system are much milder, which can be very interesting for those who are more sensitive to caffeine. In this way, by not generating such an aggressive alert peak, your consumers rarely need to apply the 90 minute rule after waking up to have your first cup and avoid cortisol shock. Chlorogenic acid. As we have mentioned before, it is the real star of the metabolic function of green coffee, since this compound formed by caffeic acid and quinic acid has led science to classify it into three main classes and that in green coffee it has a maximum concentration. High antioxidant capacity. Various analyzes of beans from different producing regions, including exhaustive studies on Mexican varieties, have confirmed that green coffee has a significantly higher amount of total phenols and a higher antioxidant capacity compared to its roasted counterpart. Presence of trigonelline. An alkaloid that is also better preserved in its raw state and that, according to various tests, collaborates in the regulation of glucose metabolism. What the science says about green coffee Scientific scrutiny on this product has been intense, especially after the proliferation of low-quality studies in the early 2010s, some of which, highly publicized, ended up being retracted by scientific journals due to methodological flaws. Today, the evidence is much more solid, mature and, above all, realistic. The most comprehensive systematic reviews, such as the one led by Tajik in 2017 that analyzed Nearly a hundred studies, both in vivo and in vitro, agree on a clear verdict: the chlorogenic acid present in green coffee is a powerful bioactive agent with antioxidant, anti-inflammatory and neuroprotective effects. But logically here science puts a brake on marketing campaigns, since green coffee does not produce a drastic transformation nor does it magically “melt” fat or rejuvenate in a snap, but it does improve different biomarkers of our metabolic health. In this way, we are not talking about something miraculous, but we are talking about something protective. Benefits of green coffee From all the scientific evidence, a compilation can be made of what this green coffee is used for on a daily basis and if it is really proven, since these are the benefits that enter our eyes and that they try to sell us to finally pay for green coffee. weight loss It is one of the most popular benefits that allows many people to take the step to start taking it, but the question we must ask ourselves here is: is green coffee really useful for losing weight? Here a study published in 2023 shed light on this issue by evaluating green coffee extract, providing at least 500 mg of chlorogenic acid daily to patients. The conclusion they drew was simply visual, as these patients had a significant, but modest, reduction of approximately 1.3 kg in the participants’ body weight. Another important piece of information was given to us in 2019. a second study which stated that the supplements had no measurable effect if consumed for less than four weeks. However, in long-term clinical trials using extracts with 70% CGA and less than 1% caffeine, reductions in body weight of up to 6% were documented, … Read more

The Artemis II countdown has already begun, but many critical points must still be overcome

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If everything goes well, humans will return to the moon todayafter more than 50 years without manned trips to our satellite. The Artemis II mission has a two-hour launch window, which will begin at 6:24 p.m. local time in Florida (00:24 a.m. PST). Before that launch the countdown will take place. But not the typical 10-second countdown that comes to mind, but a much longer one that has, in fact, already started. During the 50 hours that the countdown lasts, each of the factors that could make it necessary to postpone the launch are analyzed point by point. Only if everything is fine or can be solved at the moment will we finally see this mission begin, which breaks records and barriers in many ways. Who. The crew of Artemis II They will be very different from those of the Apollo missions. Although all of them were crewed by three white American men, this time there will be more variety. The four astronauts who will go aboard the Orion capsule are Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen. The last three will be the ones that will make the difference, since Glover and Koch will potentially be the first black person and the first woman to travel to the Moon and Hansen the first Canadian to leave Earth’s orbit. The Artemis II crew will be pioneers in many ways So that. Artemis II will not land on the lunar surface. That will be the goal of Artemis III. However, its 10-day trip will include a flyby to the Moon, in which key systems, such as life support, navigation and communications, will be tested. Photographs will also be taken of the hidden side of the Moon, in order to analyze its geology. and other data of scientific interest. Meanwhile, astronauts will carry sensors that will help verify the alterations that their biological parameters experience in space. The countdown. While it is true that the true countdown lasts 10 minutes, during the 50 hours prior to launch There is a very well established testing and preparation schedule. It all starts with preparing the fuel loading systems and powering up the ship. Other important key points are, for example, the ignition of the batteries, which occurs 33 hours before or the cooling and subsequent filling of the various fuel charging and propulsion systems. These steps are taken starting 10 hours before launch. Also very important is the flight crew’s weather briefing, which takes place 6 hours before the rocket is launched. The real countdown. During the last 10 minutes, very sensitive tasks for the launch are carried out. Above all, in this countdown the last checks are made to all the systems and the refueling of the fuel tanks is carried out. This means that the tank is refilled to the optimal level to replace the fuel that has evaporated during the filling stages. In these last minutes, the final pressurization of the tanks is also carried out and the rocket goes into internal energy mode. That is, it stops using energy from the terrestrial electrical system and uses only its batteries. What can go wrong. Any minor detail that does not work properly during the 50 hours before launch could cause the mission to be postponed. The most sensitive points are, without a doubt, those that have to do with fuel. For example, many missions have been canceled when leaks were detected in the tanks that could not be solved at the time. Adverse weather could also force the launch to be delayed. When. A launch cannot take place at any time. The Earth revolves around the Sun and the Moon orbits the Earth. In order for a rocket launched from Earth to follow a suitable trajectory towards the Moon, it is important that it be in a suitable orientation, taking into account their respective orbits. These specific moments are known as launch windows. Artemis II will have one of these windows today for two hours. If the launch could not be carried out due to any error, this month there will be several more opportunities, on April 2, 3, 6 and 30. After takeoff. The first 8 minutes after takeoff are critical. The engines are working at maximum power to leave the Earth’s atmosphere and arrive, now, slowly. Above all there will be two critical ignitions in the rocket’s upper stage, known as ICPS. The first serves to stabilize the orbit and the second to take the rocket to high Earth orbit. It is important that these go well so that the mission can move forward. Once those critical 8 minutes have been passed, the mission will have a lot of flight ahead of it, but at least the most complicated part will have passed. Even so, still We will have 10 days to closely follow the work of these 4 astronauts which, of course, have already gone down in history. Images | POT In Xataka | Spanish technology in the return to the Moon: the system designed in Madrid that NASA will use in Artemis II

AEMET points this year to the opposite

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We are already in Holy Week and the question that is asked a lot during all holy days is the same: is it going to rain? And it is no wonder, because practically every year during Holy Week there is some day that is quite bad and forces the much-loved processions to be suspended, causing sad scenes of people crying for not seeing the image to which they have devotion or for not being able to show off the work of an entire year. An exceptional year. But this year This does not seem to be the case, since, after the logical doubts of the previous weeks, the AEMET has confirmed that climatological stability will be the norm this Holy Week. The sun as the norm. The dominant note of this Holy Week will be thermal recovery, causing the cold fronts to be left behind and maximum temperatures to experience again. a general rise in most of the country, leaving us with a fully spring atmosphere. In the case of the regions of Andalusia and the Levant, they will be in luck as they will benefit most from this rise, causing the thermometers to be at a very pleasant 20-25 ºC. In the case of the center and north of the peninsula, they will also see mild weather, moving in a range of between 15 and 20 ºC. There is small print. Just because we are talking about general stability does not mean that the entire country will have clear skies. As is usual when Atlantic anticyclones dominate, the extreme north and some areas of the Mediterranean will bear the brunt, although without major storms in sight that are practically reduced to zero probability. In this way, the AEMET maintains active warnings in areas such as Empordà and the Balearic Islands due to strong winds from the north, which will alter the maritime situation. Something that has already resulted in the closure of the main port of Menorca. Some exception. Until Holy Thursday, the weather map will leave us with some weak rainfall on the Cantabrian coast, and there could also be scattered showers in the Balearic Islands and the southeast of the peninsula. Furthermore, the intense cold is relegated to the mountains, meaning that only weak frosts and some light snowfall are expected, but at altitudes above 1,500 meters, affecting the Pyrenees and the Iberian System. At the end of the week. Unfortunately, weather doesn’t mix well with long-term planning. This means that right now, for April 4 and 5, the predictive models point to possible instability that suggests some rain in the west and south of the peninsula, but nowhere near something widespread in a large area of ​​the region. But the a priori idea that we should have is that the sun will prevail in a good part of the peninsula, and will ensure that all devotees can enjoy a good Holy Week. In Xataka | The Polytechnic University of Valencia has fulfilled the ancient dream of farmers: predicting drought

We are stuffing ourselves with supplements because of the networks. Science points out that we are almost always wasting money

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A scene that can be quite common (or at least it has happened to me) is opening TikTok and, at some point, between cat videos and recipes that seem very simple, a person appears and explains why. Magnesium will change our lives. Sleeping poorly, having anxiety, muscle pain or even going constipated These are some of the claims that constantly bombard us so that we end up supplementing our diet with some of the products that are available (and that are not cheap). The problem is that it is getting out of hand. A great use. Get out of bed and, before drinking your first coffee, there is already a row of pills that you have to take to start the day: vitamin D, creatinethe ashwagandhamagnesium… A real ‘skincare‘but for the metabolism, which is becoming more and more aggressive. According to 2024 datain the United States 61.72% of adults take some type of dietary supplementation, and the figure has been growing for years. But the worst of all is that, of this high percentage, almost half of the people take it independently, without following the advice of a doctor who has been able to detect the deficiency of a specific vitamin. The problem of networks. A systematic review of 82 studies published in Healthcare in 2025 analyzed the impact of social networks in health behaviors between the years 2010 and 2025. Here he was able to identify health misinformation as one of the five categories that dominated the digital content ecosystem, since these platforms function as tools that dictate what to do to be healthy, even if there is no evidence behind it. What encourages all this is nothing more than a business model that is seeing as its income they don’t stop increasing. And logically here it is not interesting to point out that the vast majority of people can receive these ‘miraculous’ minerals thanks to a varied diet. And everything that is taken in excess can end up being excreted very well. What does science say? In 2022, a study focused on vitamin supplements and minerals to prevent the appearance of cardiovascular diseases or even cancer, the truth is that it was very revealing. The conclusion here was that for beta-carotene, vitamin E supplements or multivitamins there was not enough evidence to say that they were positive for health. But they weren’t very harmful either. If we go further, a published meta-analysis in it Journal of the American College of Cardiology In 2022, it reviewed 884 randomized clinical trials with 883,627 participants on 27 types of micronutrients. The picture is nuanced but clear in general terms: vitamin C, vitamin D, vitamin E and selenium showed no effect on cardiovascular disease. Beta-carotene, again, increased overall mortality, cardiovascular mortality, and stroke risk. But there are exceptions with omega-3 that did reduce the risk of heart attack and cardiovascular mortality. Magnesium. Without a doubt, the revolution of the moment, since it seems to be used for absolutely everything. In 2020 it already appeared a review on magnesium oral to see if it actually reduced muscle cramps, and the truth is that the conclusion was that it was unlikely to provide clinically significant relief to older adults with night cramps. This does not mean that magnesium is useless in all contexts. It means that if you are a healthy adult who takes magnesium because “a TikTok influencer recommended it to you for cramps” you are wasting your money. But if it is taken because an analysis has confirmed that magnesium levels are below normal, it can be very useful. Vitamin D. A few years ago this was the fashionable supplement for everyone, since it was sold that there was a general deficit among the population. In this case, the experts pointed out that vitamin D should not be supplemented on a general basis in healthy adults under 75 years of age to reduce the risk of disease. There is evidence in favor of supplementation in specific groups such as children and adolescents to prevent diseases such as rickets, people over 75 years of age to reduce mortality, and pregnant women to reduce the risk of preeclampsia and premature birth. In this way, supplementation is useful, but always with medical advice behind it that sees it justified to send a vitamin supplement. When to take them? The honest answer is: in specific and well-defined contexts, with clear clinical indication and as preventive life insurance to avoid all diseases. In some cases it is clear that it must be done, such as folic acid in pregnancies, vitamin B12 in vegan diets or vitamin D in groups with documented deficiencies. But what doesn’t make sense is taking a daily cocktail of eight supplements because we have been sold that it is necessary for our body to ‘start’. But it also has the logic of why we take it, since we have a constant feeling that we need to be more rested, focused and healthier. Here supplements offer us this very easy solution: with a pill. The problem is that our body works with constant balances and no matter how much we throw at it, it will not respond as we can expect. Images | Jellybee MIND FAVOR In Xataka | Magnesium has become the star supplement for sleep. Science is clear about who it really works with (and who it doesn’t)

NASA chose 34 points around the world to track its lunar mission and only one in Spain. It is in Seville, on a rooftop

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If the weather behaves well and no problemsnext April 1 (early morning on April 2 in Spain) NASA will launch Artemis II. It will be the first manned mission of the Artemis programand in it four astronauts will travel aboard the Orion capsule to orbit around the Moon. during the mission 34 locations spread around the world will track the spacecraft’s radio signals and send their data to NASA. One of these headquarters will be in a special location: the roof of the Higher Technical School of Engineering of the University of Seville. A NASA antenna in Seville. In August 2025, NASA published an open call for third-party organizations to demonstrate their tracking capabilities during an actual manned mission. All types of organizations, agencies and institutions showed up, and even private radio amateurs also did so. Of the 34 selected around the world, the ETSi is the only Spanish center that will participate in this monitoring. The Orbisat system in operation. Source: Integrasys. space roof. It will do so in collaboration with Integrasys, a Spanish company specialized in this field and which has installed its platform on the roof of the ETSi building. Orbisat. This 2.5 meter high system has been developed at its Luxembourg subsidiary and is designed to track space vehicles both during launch and during subsequent operations. Plan B. The ETSi and the Orbisat system will receive the radio signals that the Orion spacecraft emits during its trip, process them and send them in real time to NASA for analysis. The key data they will measure is the Doppler effect of the signal: the variation in frequency of the waves depending on the relative speed between the ship and the antenna. It is a key parameter to determine both the position of the ship and to calculate its trajectory. It should be noted here that this system will not be responsible for the main monitoring, which will be done from the network Deep Space Network from NASA. This monitoring will be complementary and will help the agency evaluate what monitoring capabilities it can use outside of its own infrastructure. It’s a plan B. Why 34 antennas?. This support program responds to a very clear strategy of the space agency: build a public-private space tracking ecosystem that does not depend on its own network. Kevin Coggins, deputy director of the NASA SCaN programhe explained in the official announcement that “it is not about tracking a mission, but rather about building a resilient ecosystem that supports future exploration.” The initiative is an evolution of what was already done in 2022 with Artemis I, when ten volunteers tracked the unmanned mission. On that occasion, data format and quality problems were detected, and for Artemis II, participants have been forced to meet certain standards. An opportunity for Seville and for Integrasys. The Orbisat platform will be installed in Seville permanently, which turns the ETSi into a real monitoring infrastructure and not a one-off collaboration. For the company Integrasys, based in Las Rozas (Madrid), this first direct collaboration with NASA adds to those it already had with the Space Force and the US Space Command. Now it remains to be seen if this serves as a gateway to its participation also in future space missions such as Artemis III, which will land on the lunar surface. The Aerospace Technology Group of the University of Vigo will also participate in monitoring the mission. The students are in luck. The Master in Space Systems Operation at the University of Seville is taught for the first time in this 2025-26 academic year. Students will have direct access to the data generated by Orbisat during the Artemis II missionand with them they will be able to apply orbital determination and trajectory analysis techniques in that real scenario. For them this occasion is special, since they will be able to go beyond the books and have access to the telemetry of a manned spacecraft orbiting the Moon. A much more powerful way to learn, without a doubt. Spain on space map. The network of the 34 selected includes organizations such as the Canadian Space Agency, the German DLR, companies such as Telespazio and universities from Switzerland, Japan and the United States. Seville is on that list along with individual radio amateurs from California or South Dakota, amateur radio organizations such as AMSAT in Argentina or Germany, research centers in Cameroon or New Zealand and professional stations in Norway and the United Kingdom. The conclusion is clear: NASA has here the beginning of what can be a heterogeneous and decentralized network with monitoring capabilities. The Spanish participation on the Artemis II mission, by the way, goes a little furtherbut could go much further even. Image | NASA | ETSi In Xataka | In 2018, Elon Musk put his own car into orbit. Eight years later it is still circling the Earth

The US has sent Iran 15 points to end the war. He has also sent a plan B as explosive as it is disconcerting through the air

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In the Cold War, the United States and the Soviet Union held open negotiations while, at the same time, deploying thousands of troops and nuclear weapons in key points of the planet. In reality, that logic of talking and putting pressure at the same time has never disappeared and continues to be one of the most recognizable constants of modern conflicts. The 15 points. First the official route. The United States has sent Iran a 15 point plan to try to end the war, using Pakistan as an intermediary and with the intention of stopping a conflict that already affects energy markets and regional stability. The document addresses key issues like the nuclear programballistic missiles and maritime security in the Strait of Hormuz. However, it is not clear whether Iran has even agreed to discuss it or whether Israel endorses the content. Furthermore, much of the plan appears to be based in previous proposals which have already been rejected, which casts serious doubt on their real viability. Diplomacy does not stop war. Although Washington presents the plan as a way out, the reality on the ground is very different. military operations have continued without pause within that campaign named after a Michael Bay movie, Epic Fury. In fact, the United States and Israel have continued attacking infrastructure Iranian military while Iran maintains the launch of missiles and pressure on maritime traffic. The White House itself has made it clear that the negotiations they do not replace to military objectives. In other words, the situation generates a scenario in which diplomacy advances in parallel with an escalation that does not stop. F 35c The ground deployment. At the same time that there is talk of agreements, the United States continues sending and increasing its military presence in the region. There are already nearly 7,000 new troops sent in a few days, including units of the 82nd Airborne Division and marines prepared for rapid operations. So that? In theory, these forces can act in specific scenarios such as the capture of strategic points or the reopening of maritime routes in Hormuz. There is no doubt, its deployment does not respond to a withdrawal, but to the expansion of military options available if the negotiation fails. Advanced capabilities by air. The reinforcement is not limited to ground troops. New fighter planes have also appeared like the F-35Cunits that are being deployed to the area of ​​operations, adding to an already very large air force. These systems provide precision strike, close support and air superiority capabilities. Not only that. Movements of other assets such as airplanes have also been detected special operations and deception systems against anti-aircraft defenses. In short, everything points to preparation for more complex scenarios that a simple containment. If the 15-point plan does not work, plan B is ready to act. The strange B2s of plan B. In this context, the B-2 bomberswhich are operating from US territory and have appeared with some visible modifications on its wings that have not been explained by military sources. They counted the TWZ analysts that these changes could be related to sensors, electronic warfare or improvements in its survivability, but there is no official confirmation. Your role, as almost alwaysseems key for Washington because they are the only ones capable of attacking highly protected targets long distance. Its presence, along with these modifications, reinforces the idea that the United States is preparing specific capabilities for more demanding phases of the conflict. A plan that does not resemble a negotiation. The combination of all these movements paints a fairly clear scenario. While presenting a peace proposal publicly, a military architecture is deployed at the same time increasingly widerwith units like those B2 with additions that had rarely been seen in other conflicts. A troop contingentfighters, strategic bombers and naval reinforcements accumulating in the region, suggesting that Washington is not betting solely on a negotiated solution. Rather, an alternative is being prepared in which military pressure increases if talks do not progress. A disconcerting war. In recent months we have seen scenes of soldiers controlling machine guns mounted on drones with devices like a Steam Deckremote operations that seemed to mark the definitive course of modern warfare. It has been spoken artificial intelligenceof drone swarms and remote combat as the new standard. However, in parallel, the United States is preparing to send thousands of paratroopers (around 3,000), a capability designed in the 20th century to take key positions quickly. The image is difficult to fit because of its anachronism. While one part of the conflict aims at total automation, another recovers classic forms of massive troop deployment. This coexistence is not an anomaly, it is the sign that the current war does not replace what came before, or not at all, but rather accumulates it. Two open roads. The result of all this is a strategy that advances in parallel. On the one hand, an attempt to reach an agreement with multiple conditions extremely difficult for Iran to accept. On the other hand, a deployment which allows the war to be rapidly escalated if necessary. The key at this time and in the coming days will be whether one of these paths prevails over the other. Because, for now, the United States has sent two diametrically different messages at the same time, and both they are still active. Image | USAF, US Army In Xataka | Drones and ballistic missiles have revolutionized warfare. Iran suspects there is another weapon: rain theft In Xataka | There are four days left for the US to make a momentous decision: whether it wants to turn Iran into its own Ukraine

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