understand

The Iberian lynx is reconquering Spain and that is good news. The challenge now is to understand why

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In 2002, there were 94 Iberian lynx confined to two very specific points in Andalusia. It was so obvious that the future of the species was written that no one bothered to read it. And hence the surprises: almost 15 years later, There are 2,401 copies distributed across 17 nuclei breeders in six autonomous communities (and Portugal). But the most interesting thing is not that the Iberian lynx population has grown, what is interesting is that its recovery is so great that it now frequents places where it has not been seen for centuries. This is what has changed and, above all, these are the consequences. Has the situation changed that much? At least on a symbolic level, yes. Of course. In 2014, there was not a single lynx in all of Castilla – La Mancha. Today, 46% of all Spanish individuals of the species they are there and it already exceeds the Andalusian population. That is, what is happening with this feline is much more than a simple story of population growth (also 29% a year since 2020): it is a whole change in the ‘center of gravity’ of the species. And yes, it is good news. In fact, the IUCN removed it from the “endangered” species and put it on the “vulnerable” list. Is the first species to drop two (two!) categories on that list in just 20 years. Did we really not see it coming? The truth is that not only did we see it coming, it is what we were looking for. But, as I said at the beginning, the general journalistic account that has been done at the national level hides all this. In 2019, when the project started LIFE LynxConnectthe idea was precisely that: it is not enough to have many lynxes if those lynxes are controlled in only a couple of places. Recently we were talking about the very delicate situation of the immortelle of Mojácara plant that survives confined to a single beach on the Mediterranean coast. That couldn’t happen with the lynx. Therefore, the idea of ​​authorities and researchers was simple: we needed various nuclei and we needed to connect them to each other. In any case, it is not all our merit. Because, as always, climate change has a lot to do with it. The north of the peninsula is becoming drier and has greater populations of rabbits: this has meant that there are at least two towns (in Cuenca and Palencia) which are completely outside the recent historical distribution of the lynx. And if those two populations are there it is because they can be there now. In fact, experts rule out that the lynx extends to the Cantabrian coast because, simply, there are not an abundance of rabbits. Okay, and what are the consequences of all this? To begin with, the ecological balances to which we are accustomed have changed. In fact, now that rabbits have become a problemmany rural communities are waiting for the arrival of the lynx to put things in place. However, there are also numerous life safety problems (162 accidents in 2024 alone) and challenges for territorial planning. Be that as it may, the lynx is a laboratory now that the reintroduction of species is the order of the day. Also now that they arrive invasive species at a level never seen before. There is much to learn and, I fear, little time to do it. Image | Kenny Goossen | Ian In Xataka | England is experiencing an unprecedented invasion. The problem is that they are octopuses, and they are devouring everything they can find.​

Science had always believed that only humans understand geometry. Until we noticed the crows again

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The perception of geometric regularity in shapes, a variant of elementary geometry, has long been considered an ability that only human beings had. And it is no wonder, since from quite early stages of development and across multiple cultures, our species has demonstrated a natural understanding of spatial rules. But this has changed in a species similar to crows. A radical change. Although this innate quality of humans was quite well established, science has now shown that the crows too They have geometric understanding. A cognitive milestone that rethinks what we thought we knew about animal intelligence and the evolution of pure mathematics. A myth. The scientific bases showed a notable gap between human abilities and those of the rest of the animal kingdom with regard to euclidean geometry. Previous research had already seen that primates lacked the ability to recognize geometric regularity in tests of visual perception of shapes, something fundamental, since they may be the first that come to mind when thinking about this property. And this was crucial to determining that humans have an innate ability to process geometric regularity, since the recurring inability to species like baboons After intensive training he laid these foundations. However, the researchers decided to explore these abilities in birds known for their impressive cognitive and arithmetic skills. Touch screens. To test birds’ spatial intuition, scientists from the University of Tübingen They designed an experiment based on the detection of visual anomalies. In this case, two 10- and 11-year-old male crows were trained using touch screens located inside conditioning chambers. Here the birds could observe an array that displayed six simultaneous shapes on the screen and the task was to detect an “intruder”, that is, to peck at the shape that differed in its visual parameters with respect to the other five base stimuli. The tests. For the final test, five reference quadrilaterals were used, ordered by their level of regularity: the square, the isosceles trapezoid, the rhombus, the right hinge, and a completely irregular shape. From here on, the “intrusive” figures were artificially generated moving the lower right vertex of the original figure at a fixed distance equivalent to 75% of the average distance between the vertices. Results. The most impressive thing seen was the immediacy of understanding the problem, as the crows were able to apply the concept of detecting the intruder immediately upon being exposed to the new sets of quadrilaterals. Both subjects dramatically exceeded the 16.7% chance level during their first trials, demonstrating that they understood the task without hesitating or mindlessly pecking. Furthermore, during the first 60 trials, the first crow achieved 48.3% success and the second crow 56.7%. The most impressive thing. The most revealing data from these tests was precisely that the birds showed significantly better performance with shapes that presented properties of pure Euclidean geometry, such as right angles, parallel lines or symmetry. It is crucial here to highlight that this performance advantage did not require extensive prior training, but rather the regularity effect was present from the very beginning of the testing phase. Because? Faced with the logical question of why crows achieved what other primates failed, the authors of the study recognize certain important methodological differences compared to classic experiments with baboons. In this case, they point out that the crows were subjected to a strict progress criterion during training, needing to maintain 75% correctness over five consecutive sessions. In contrast, baboons only needed to reach a criterion of 80% correct responses only once, without the need for consecutive sessions. And although this difference may make a direct and exact comparison between the species difficult, the main finding is incontestable: crows recognize geometric regularity. Images | Tyler Quiring In Xataka | Punch, the monkey clinging to a stuffed animal and a victim of bullying, has achieved the impossible: uniting the Internet under the same cause

The cell phone on the nightstand is not “frying” your brain, but science is beginning to understand why it prevents you from resting

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It is practically a ritual today: connect your phone to the charger, set the alarm and leave it on the nightstand just 30 centimeters from the pillow to sleep. According to the data, for 95% of adultssleeping with your phone within reach is a logistical necessity; For a growing stream of longevity experts, It’s a biological miscalculation. because we rest less. To do this, we have analyzed the bibliography to know exactly the effect of having your cell phone next to you. The culprit confirmed. Before entering the swampy terrain of the possible problems that radiation can generate when it is around us, we must point out the “elephant in the room.” The most solid evidence we have today does not blame antennas for having a bad sleep, but to the screens and what we do with them. To give us an idea, a meta-analysis over 36,000 participants concluded that excessive use of smartphone increases the risk of having poor quality sleep by 228%. The double responsible. The first is the suppression of melatonin, since the blue light emitted by the LED panels of mobile phones tricks our brain making him believe that it is still day. This delays the release of melatonin and fragments the architecture of sleep. But not only the blue light is information, since responding to a WhatsApp or doing doomscrolling on TikTok before bed keeps the brain alert. A study of medical students suggested that nighttime cell phone use corresponded to poorer sleep. The radiation debate. It has always been a mantra for many: having your cell phone nearby is having a large source of radiation that causes many health problems. In this case, organizations such as the WHO or ARPANSA have traditionally maintained that evidence of damage from low-level electromagnetic fields is “insufficient.” However, it does not mean that it is non-existent. The most recent studies They are beginning to see the non-thermal effects that mobile phones have. One of the most interesting was done with baby monitors that have a frequency of 2.45 GHz, similar to Bluetooth or Wifi, to simulate environmental exposure. The result was that the exposed group, compared to the placebo, showed a worse subjective quality of sleep and alterations in heart rate variability, suggesting that sensitive people do notice the invisible “presence” of the electronic device nearby. Brain wave modulation. Other research on 5G signals found that exposure to 3.6 GHz waves affected sleep spindles during N2 phasethat is, light sleep that accounts for 50% of the total rest time. The curious thing about this study is that the effect depended on genetics: only carriers of certain variants of the CACNA1C gene showed alterations in the electroencephalogram. This qualifies the warnings of some experts, since radiation may not affect us all equally, but for a genetically predisposed subgroup, sleeping next to a continuous emission source could be fragmenting their N2 phase, crucial for memory consolidation. The habit factor. It is often cited Sinha’s studio to demonize radiation, but what this study really measured were habits in a sample of 566 participants. In this case, it was seen that those people with high mobile phone use took longer to fall asleep, their sleep was less efficient, and 22.6% reported worse quality of sleep. In this way, the conclusion was not that the waves prevented them from sleeping, but that the habit of having their cell phone nearby inevitably leads to using. If it’s on the table, you look at it. If you look at it, you become active. It is a behavioral rather than a radiological vicious circle. Hygiene protocol. The question in this case is inevitable: should we wrap the room in aluminum foil? It’s not necessary. In this case, physics works in our favor thanks to the inverse square law: the intensity of the radiation falls drastically with distance. That is why the most important thing is to move the device at least one meter away from the bed, since at this distance the exposure falls to negligible basal levels, making Sleeping with your cell phone under your pillow is the worst possible decision. If we want to go a little further, we can put it in airplane mode, although the best advice, as the Spanish Society of Neurology points out, is to have a sacred hour, where the recommendation is to leave the screens an hour before going to sleep. Images | Nubelson Fernandes In Xataka | We thought insomnia was just not being able to sleep. Now we know that there are five different disorders

There is a graphic that explains the atrocity that has occurred in Grazalema. And it helps to understand why the people continue to be evicted.

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And that graph is Nahel Belgherzea meteorologist who covers extreme events throughout the world and who, despite being used to them, has described what has occurred in the mountains of Cádiz as “hydrologically absurd.” “Hydrologically absurd”? It is. Grazalema, according to available datahas received more than 2,000 mm of rain in the last 20 days alone. That is, more than a normal year of rain and we are at the beginning of February. It is not surprising that Spanish reservoirs accumulate 43,341 hm³ of water; that is, 5,634 hm³ more than last week. As of today, Spain is at an astonishing 77.34% of its total capacity. And, in fact, today, many reservoirs continue to drain before the arrival of more water. What do you see in the graph? The graph in question is very simple: it is the accumulated rainfall for the Grazalema station. On the Additionally, in gray, you can see the cumulates from other years. And, as you can see, the curve is almost vertical: it has rained unspeakably in a few days. Compared to normal years (when the river grows in spring and winter), there is now a totally enormous water boom. Something unprecedented. And, precisely that, is what is forcing CISC technicians to continue reviewing the Grazalema aquifer. While the City Council insists that the return of the residents will take place when a safe return can be “guaranteed”, researchers from the Geological and Mining Institute of Spain (IGME) they are still on the ground. The aquifer, a geological structure 18 square kilometers in size, has been put under enormous pressure and authorities are focused on ruling out the slightest risk of collapse before the town’s inhabitants can return. The Junta de Andalucía, in fact, has been warning for days that it can go for a long time. Image | Nahel Belgherze In Xataka | Desertification is devouring southern Spain: Extremadura and Murcia face a completely dry future

Only once did he bet on a scientist and help us understand it better

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If today we think of an astronaut, we usually imagine someone with advanced scientific training, prepared to live for weeks or months in a challenging environment, master complex systems, robotics and even several languages. But in the sixties, when the space race was a race of speed and prestige, the mold was different: NASA was looking for operational profilespeople capable of making decisions under pressure and flying machines that no one had flown before. That was the pattern that marked almost the entire Apollo program.. And yet, there was one exception that broke the norm: for the first and only time, one of those who set foot on the Moon was specifically selected as a scientist, and that influenced what we learned about it. The protagonist of this exception was Harrison H. “Jack” Schmittand his case is unique within the lunar program. On Apollo there were astronauts with doctorates or advanced technical training, yes, but that does not automatically make them “scientist-astronauts.” The difference is in the selection criteria. Buzz Aldrinfor example, had a doctorate in astronautics, but entered the astronaut corps through the usual route of the military pilot (Group 3), like so many others. In June 1965, according to NASA, a specific group was selected to incorporate scientists, Group 4, and Schmitt was the only member of those members who ended up assigned to a moon landing mission, Apollo 17. The astronaut who came to be a scientist Before becoming an astronaut, Schmitt was already working, literally, with the Moon in mind. According to the USGSin 1964 he joined the Astrogeology team at the Flagstaff Science Center as a geologist after receiving his doctorate from Harvard. participated in lunar geological mapping and led the Lunar Field Geological Methods project, focused on how to do field geology applied to satellite exploration. That experience put him in a unique position within the program: He was not a newcomer to lunar science. After joining NASA, his contribution went beyond flight. The Florida Institute for Human and Machine Cognition highlights who organized the lunar scientific training of the Apollo astronauts, represented the crews during the development of hardware and procedures for exploring on the surface, supervised the final preparation of the descent stage of the Apollo 11 lunar module, in addition to serving as a mission scientist. Apollo 17 was not just another mission within the program. NASA defined it as the last of the three J-type missions, a series characterized by greater hardware capacity, more scientific load and the use of the Lunar Roving Vehiclethe electric rover that expanded the real exploration radius. That explains why the exploration of the Taurus-Littrow valley was not chosen at random. The objective was ambitious: to work in an area where rocks older and younger than those recovered in previous missions could be found. Added to this scientific ambition was an operational design with room to deploy and activate surface experiments, perform sampling, and complete photographic and experimental tasks both in lunar orbit and upon return to Earth. In an interview with the Japanese space agency (JAXA)Schmitt explains that a specialist comes with years of accumulated experience, and that allows him to decide much more quickly what is important and what is not. Schmitt recalls that NASA trained its pilot astronauts to observe well and understand the problems they were working on, but insists that there is no substitute for experiencewhether in geology, medicine or any other discipline. That is the practical logic that sustains their presence in Apollo 17: when the objective is no longer just to arrive, but to interpret an environment and choose samples judiciously, having someone on the ground who has done field geology for years changes the quality of the decisions. And there appears one of the most memorable episodes of Apollo 17. In the middle of the field work in Taurus-Littrow, Schmitt and Eugene Cernan identified the so-called “orange soil”a finding that generated great expectation in the scientific community. Within the framework of the mission, this material has been described as volcanic glass or pyroclastic material, and is interpreted as especially clear evidence of ancient explosive volcanism on the Moon. It wasn’t just a color oddity. It was a clue about the thermal and geological history of the satellite, and a perfect example of why the mission had looked for a place where different materials could appear, older and also younger than those brought by other expeditions. If Schmitt’s story seems strange it is because, within the same group of scientist-astronauts, he was the only one with a lunar destiny. The USGS notes that, From more than 1,000 applicants, six were selectedand that three of them, Joe Kerwin, Owen Garriott and Edward Gibson, would end up flying in Skylab in 1973 and 1974. That is, science, yes, but far from the moon landing. NASA wanted to reinforce the scientific component of manned flight, but the priority of the lunar program remained different and the space for “specialists” was limited. In this context, Schmitt stands out not only for stepping on the Moon, but for what it implies: even within a group created to add science, the moon landing remained almost exclusive territory of the operational profile. Schmitt’s story has value precisely because it is not just a biographical oddity, it is a mirror. In Apollo, the ideal astronaut was an operator, and only once, in the last moon landing, that mold was opened to integrate someone selected for their scientific profile. As we have seen, currently, astronaut training is designed for long and complex missions, with different requirements. And right now, when the moon race looms again, that question makes sense. Since Apollo 17, in 1972, humans have not returned to the surface, but NASA proposes a way back with Artemis, with Artemis II as a manned flyby and Artemis III as the planned moon landing if plans are fulfilled. With China also targeting the satellite, the return is no longer read only in a historical key. Returning … Read more

We will increasingly see more “verified” SMS against fraud. The important thing is to understand how they really work

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We live watching our cell phones and what appears on their screen, from a notice from the bank to a code to authorize a payment. This dependency has turned the text message into fertile ground for deception, with campaigns of smishing that imitate well-known companies and sneak into conversations that seem legitimate. The problem is not only technical, it is trust: distinguishing at a glance who is really on the other side. For years, SMS has treated legitimate and fraudulent messages equally, and that neutrality is exactly what attackers exploit. Malicious campaigns detected in Spain show how names and formats of known entities are copied to gain the trust of the recipient. These messages are designed not to raise suspicion. And often, when doubt arises, it is too late to react. Say ‘hello’ to verified messages. Faced with the erosion of trust in traditional SMS, the industry has chosen to reinforce the identity of the sender instead of placing all responsibility on the user. Verified messages introduce a relevant change: they make visible whether a company has been recognized as legitimate before the message reaches the mobile. Supported by the RCS protocolthese messages add a name, logo and verification indicators with the intention of reducing one of the main weapons of fraud, confusion about the real origin of the message. BBVA. This is how it looks on mobile. In Spain, BBVA has been one of the first large banks to show this change visibly for the user. On Android, the bank’s official messages are identified with its name and logo, accompanied by an indicator that indicates them as an official channel. By clicking on that logo, the user can verify that the associated data, such as the telephone number or website, match those of the bank. Furthermore, these communications arrive in a different thread than traditional SMS, precisely to prevent them from being mixed with fraudulent messages. Bankinter has also taken the leap. Bankinter has partnered with Telefónica to distribute verified messages. The entity explains This will improve the security of “critical communications”, such as single-use codes for transfers or online payments. Here we will also find the sender verification confirmation, the official logo and additional information such as the website and a telephone number. How verification works. Behind that visible badge there is a process much less obvious to the user. The standard defined by the GSMA establishes several preliminary stages before a company can send a single verified message. First, the entity must register its identity, with a specific name and logo, and submit it to external certification by a third party that validates that the entity can use that name and logo. This validation is not enough on its own: the authority that issues it must be included in the trusted list of the recipient’s operator. Without that complete string, the check simply doesn’t show. Who verifies who. Here the so-called Verification Authorities come into play as third parties in charge of validating that a company is who it says it is before it can send verified messages. That role may fall to private companies specialized in digital verification, mobile operators or even government entities, depending on the deployment and the country. Afterwards, it is the user’s operator who decides whether they trust that authority, something that is sometimes reflected visibly in the message itself, as occurs in an official Bankinter example, where the system indicates that the verification has been carried out by Movistar. The final verification occurs when the message reaches the phone. According to the GSMA standard, the messaging app automatically downloads the sender’s profile and runs a series of technical checks before displaying any badge. It is checked that the signature is still valid, that the authority that issued it is accepted by the user’s operator and that the data has not been altered. Only if everything fits does the verification indicator appear; If something fails, the message loses that appearance of legitimacy. Does it work on iOS and Android? This scheme is not exclusive to Android. Apple added support for RCS as a carrier service starting with iOS 18, allowing you to send and receive messages with advanced features when not using iMessage. In practice, the behavior is the same: if the operator supports RCS and the standard is implemented, the system can display the name, logo and indicators associated with the sender. Without this support from the operator, the message returns to the familiar terrain of SMS or MMS, without additional verification signals. For the user, the practical learning is simple: a verified message offers more context and more clues than a conventional SMS, but it does not eliminate the need to remain cautious. Knowing that there is a technical process behind that distinction helps us better interpret what reaches our mobile phones and be wary when something does not match. However, in an environment where malicious actors never sleep, caution remains essential. Images | Vitaly Gariev | BBVA | Bankinter | Gemini 3 Pro In Xataka | Cybersecurity experts by day, cybercriminals by night: how two professionals fell after using ransomware

We have been obsessed with Japan for decades to understand people who live over 100 years. The key was in Brazil

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For decades, when science was searching for secrets of aginghe always looked in the same places: Japan’s “Blue Zones”Sardinia or the icy and homogeneous populations of northern Europe. However, researchers have pointed out that all this time we have been ignoring a biological gold mine: Brazil. The study. Understanding why there are people who live to be over one hundred years of age is undoubtedly an objective of science to to be able to unlock possible therapies in the future that will extend our lives much longer. Since it is curious that in specific areas such as Japan the population ages far beyond the normal average, being a mystery to science (although the reasons are already gone). The latest research on the matterpublished on January 6 in Genomic Psychiatry, has identified a genetic mix in the South American country that could contain protective variants invisible in more uniform populations. The Brazilian superhumans. The study, led by geneticists Mayana Zats and Mateus Vidigal de Castro, is based on the analysis of a group of more than 160 centenarians and at least 20 supercentenarians, who They are those people who are over 110 years old. Among these people, some quite relevant figures stand out, such as Sister Inah, who reached the age of 116, and several of the oldest men in the world, according to the LongeviQuest Atlas. But what really makes this group of people who have been analyzed by researchers special is not their age, but their biological resilience. Its biological resistance. The researchers’ main thesis is that the intense Brazilian miscegenation, fruit of centuries of interaction between indigenous populationsPortuguese colonizers, enslaved people of African origin and European and Japanese immigrants, has created a unique genomic diversity. By analyzing this genetic “breeding ground”, scientists have identified millions of variants that do not appear in large international biobanks. The hypothesis suggests that this mixture allows protective variants to emerge that are practically invisible in homogeneous populations. It is, in essence, a search for the genes of resilience in an environment of maximum diversity. COVID resistance. Without a doubt, it is one of the most fascinating examples of this history, since before the arrival of vaccines, three supercentenarians of the study they managed to survive the disease. By analyzing their immune response, the researchers found a concentration of cells related to innate defense that was very efficient. In this way, it was seen that individuals not only live longer, but also have a defense system capable of neutralizing threats that are lethal to people decades younger. Something that seems to be related to an increase in biological processes related to autophagy, that is, the ability of some cells to literally clean the body of harmful components. What was already known. This paradigm shift connects with previous works such as those done by researcher Manel Esteller on the epigenetic profile of the Spanish María Branyasthe oldest Spanish person of all time. In this case, what was done was to understand the “biological clock” of longevity in Europe. Now, the Brazilian project expands the map into the unknown. By sequencing entire genomes in this mixed-race population, scientists have discovered some eight billion undescribed variants, many of which could have a functional impact on how we age and how our cells withstand the test of time. Towards the future. The study of Brazilian supercentenarians is not only a matter of biographical curiosity about who holds the age record, but a critical step towards genomic medicine of the future. By understanding how the mixture of ancestors can concentrate protective factors against degenerative or infectious diseases, science is getting closer to discovering whether there is a biological “formula” for longevity that can be translated into therapies for the rest of the population. Brazil, with its genetic mosaic, is demonstrating that the most complex answers to our survival could be written in the genes of those who, against all odds, have seen more than a century of history pass by. Images | Unsplash In Xataka | The change of year has a weapon to slow down your aging: a list of New Year’s resolutions

a sports nutritionist helps us understand what’s behind it

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We eat every day and, even so, many doubts continue to arise around food. How many eggs are too manyif coconut oil deserves its fame, if sweeteners are a safe alternative or if training on an empty stomach really helps you burn more fat. These are questions that are repeated in conversations, social networks and headlines, often accompanied by forceful answers that do not always leave room for nuances. In the last episode of the first season of ‘Science and apart‘, which you can see on our YouTube channel and listen also on Spotify and iVooxÁngela Blanco chats with Maria Blancosports nutritionist, to calmly and contextually address some of the most widespread ideas about nutrition, habits and performance. Food, habits and many certainties that are not so certain The conversation starts with a question that forces us to go beyond personal tastes. If you had to choose a single food that is complete from a nutritional point of view, the specialist does not hesitate to point out a very specific one: “The egg is a very complete food. It has almost all the vitamins, it has minerals, it has a complete aminogram, that is, the protein we need, it has all the amino acids, and if it were missing something it would be vitamin C, it would lack fiber, it would lack other things… but well, the egg is the most complete food that I would choose.” After valuing the egg as food, the conversation enters one of the most repeated doubts. Is there really a clear limit to its consumption? María Blanco’s response is based on scientific evidence and avoids alarmism: “In scientific evidence, the daily egg, one to three eggs, is totally healthy. Because then we could restrict or avoid other types of foods that can harm us much more than the egg.” The episode also focuses on how certain reputations are built around what we eat. When asked by our colleague about foods with a reputation for being healthy, María Blanco points directly to one of the most popular in recent years: “Coconut oil. Because we have a very rich oil, which is olive oil. and that we have a very good origin because we are here and it is first-hand. And it (coconut oil) is like with a lot of propaganda.” The conversation also stops at one of the most used sugar substitutes. When talking about saccharin, María Blanco avoids simplifications and focuses attention on another less visible aspect: “There may be changes when using not only saccharin, but also sweeteners, in the microbiota that we have inside our intestine, and that can affect other areas.” To understand why this possible impact matters, the interviewee stops to explain what we are talking about when we mention the microbiota: “The microbiota or the microbiome is the set of bacteria that are living with us in our intestine.” And it adds a key nuance about internal balance: when these bacteria are no longer in a situation of eubiosis and dysbiosis occurs, effects that go beyond the digestive system can appear. The conversation ends by delving into some of the most discussed habits. From the appeal of ultra-processed foods to the debate on fasting and exercising on an empty stomach, María Blanco insists that the body does not work with instantaneous mechanisms: “There is no turn onthere is no switch, which is directly ‘well now I change this liver thing and start burning the fat from the adipocytes.’” We address all of this in more depth in ‘Science and Apart’, which closes its first season with a very interesting episode. A conversation designed to better understand how we eat and to put context to doubts that have been on the table for some time, with the help of our interviewee. Images | Xataka In Xataka | The Earth is not calm, it just seems that way: a geologist explains why natural disasters continue to surprise us

The only photo you need to understand the scale of what Blue Origin, Jeff Bezos’ company, has just done

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In the absence of bananas, there is nothing like having five human operators in the photo to understand the scale of the New Glenn rocket, whose first stage is 57 meters high and seven meters in diameter. landed successfully on a barge in the Atlantic. SpaceX has company. So far, the club of companies capable of landing their orbital-class rockets so they can be reused had only one partner: SpaceX. For a decade now, Elon Musk’s company has single-handedly dominated the reuse game, landing and taking off again up to 500 times with the Falcon 9 thanks to a reliability that is now more than routine. What you see in this photo is the breaking of that monopoly. The first successful landing of the enormous New Glenn rocket, achieved on only its second flight, demonstrates that orbital reuse is no longer a matter of a single company. Although Blue Origin, founded in 2000 by Jeff Bezos, is far behind SpaceX, it has just taken a giant leap that Bezos summarized with a Latin expression: Gradatim Ferociter (“step by step, fiercely”). As large as graceful. Unlike the Falcon 9, which measures 70 meters and can put about 22 tons of cargo into low orbit, the New Glenn stands out with 98 meters in height and a planned capacity of 45 tons. If we had not seen SpaceX catch the Super Heavy (the first stage of Starship) three times with the arms of the launch tower, it would seem more unlikely to us that a rocket like the New Glenn would be able to land gracefully in the center of a barge in the Atlantic Ocean. And without getting covered in soot. There is another fundamental detail in the photo: the rocket fuselage is clean. Unlike the Falcon 9 boosters, which return covered in the characteristic black soot caused by kerosene combustion, the New Glenn appears almost pristine. The reason is that its seven powerful BE-4 engines use methane and liquid oxygen (a combination of cryogenic propellants known as methalox). This fuel is not only more efficient and cheaper, but it burns much cleaner, facilitating inspection and reconditioning tasks for the next flight. With this landing, the New Glenn has become the first methalox rocket to successfully recover a first stage from an orbital flight, ahead of the Zhuque 3 from the Chinese company Landspace (and with permission from Starship, which also uses methalox, but has never reached orbit). Things are coming. Blue Origin’s sweet moment begins now. In an interview with Ars Technicathe company’s CEO, Dave Limp, has confirmed that the aggressive 2026 goal is to complete between 12 and 24 missions. The company has announced a launch price of about $70 million, a figure almost identical to what SpaceX charges for a Falcon 9. But the New Glenn not only competes with the Falcon 9, but also threatens to burst the market by competing directly in the league of the Falcon Heavy, but with the advantage of a unique and fully reusable first stage. As for the rocket that has landed, its next payload will not be a probe or a satellite, but the Blue Moon Mark 1 lunar module, which the company plans to launch in the first quarter of 2026 to demonstrate to NASA They are ready for the moon race. Image | Jeff BezosBlue Origin In Xataka | Blue Origin now has a golden opportunity to overtake SpaceX on trips to the Moon. And he is taking advantage of it

Historians have been trying to understand Hitler for decades. DNA just gave us a clue about your sex life

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“We didn’t know what we were going to find. It could have been the most boring genome on the planet, but it turned out amazing.” As if the promise of new (and morbid) revelations about Hitler weren’t enough to grab the world’s attention, that phrase of Turi Emma Kinga famous geneticist, has helped the documentary ‘Hitler’s DNA’ generated a huge stir even before its premiere. Logical. After all, the work is based on scientific research that reveals that the Nazi leader suffered from a genetic disorder that affected his sexuality. And that is just one of his many conclusions. Yes, Hitler again. The 20th century was prolific in wars, milestones and historical figures, but probably few arouse the fascination of Adolf Hitler. For his disastrous role as fuhrer but also because of the enormous amount of conspiracy theories and hoaxes that surround his figure. About his death, your habits and tasteshis supposed Jewish ancestry and his equal alleged offspring So many pages have been written that they would cover (several times) the bunker in which he committed suicide on April 30, 1945 with a sip of cyanide and/or a bullet. So it’s no surprise that any new revelation about him generates considerable excitement. Especially if it is one like the one that promises ‘Hitler’s DNA’a documentary produced by Channel 4 and which boasts of having thoroughly studied the DNA of the Nazi dictator. The piece premiered yesterday, Saturday, but its authors have taken it upon themselves to air their main conclusions in advance to warm things up. And although there are those who question their rhetoric or the solidity of some of their statements, one thing is clear: they have not done badly in their endeavor. Adolf Hitler’s DNA? Exact. To understand how the producers obtained a genetic sample from Hitler, we must go back to May 1945, shortly after the Nazi leader’s suicide. Among the allied soldiers who were able to access the Führerbunker There was one especially clever one, Roswell P. Rosengren, who came up with an idea: Why not take proof of the very couch on which the dictator had taken his life? No sooner said than done. The American officer cut off a blood-stained scrap and took it home. The piece was guarded by his family until 2014, when it passed to the Gettysburg History Museum. There the producers of Channel 4 found him, who had to face the following challenge: Was that really Hitler’s blood? Was there some way to establish the link, beyond Rosengren’s story? The answer was yes, although it forced them to take a new time jump (this much shorter one) to 2008, when the journalist Jean-Paul Mulders obtained a DNA sample from a relative of Hitler, a person with whom he shared paternal ancestors. Mulders’ purpose was to investigate the rumor of an alleged illegitimate son of Hitler, but in the end it served the creators of the documentary to compare the sample with the blood on the couch. The result: a perfect match. Double check which reinforced the conviction that the cloth contained Hitler’s DNA. “I thought about it a lot”. The next mission was to sequence that DNA to find out everything it hid about its owner, another far from easy task. Not so much because of the technical complexity itself but because of the enormous controversy that accompanies Hitler. In fact The Times assures that there were several laboratories that refused to collaborate in the documentary. Professor Turi Emma King, the lead geneticist on the research, also had her reservations when it was proposed. “I thought about it a lot,” recognize to the British newspaper the scientist, known for identifying years ago the remains of King Richard III. If he decided to embark on the project it was for two reasons: first, why not do it when the DNA is already being used for historical research it would mean giving a prominent role to Hitler; second, by the conviction that sooner or later someone would do it. “We wanted to make sure it was done methodically and rigorously.” So King decided to join the other main expert in the investigation, Dr. Alex Kayexpert on Nazi Germany and professor at the University of Potsdam. Clearing up unknowns. The experiment did not disappoint. As King acknowledges, the team risked not getting convincing results or anything substantial to justify the effort. Quite the opposite happened: the DNA analysis yielded some surprising conclusions that help debunk myths and expand the keys to understanding the Nazi leader. “We didn’t know what we were going to find. It could have been the most boring genome on the planet, but it turned out incredible,” relates. One of their most interesting findings is that the rumors about Hitler’s Hebrew ancestry appear to be basically that: rumors. At the time, there was speculation that the dictator’s paternal grandfather could have been Jewish (Hitler’s father, Alois, was an illegitimate son), a theory so deep-rooted that in 2022 it came to light. share it publicly Russian Foreign Minister Sergei Lavrov. He was wrong. Channel 4 analysis reveals that Hitler was of Austro-German descent and supports the family tree drawn up by the Nazis. “Confirms that the story of Jewish ancestry through his parents is false,” concludes King on CNN. Kallman syndrome. If there is a revelation that has generated interest and grabbed headlines, however, it is the one that tells us about a much more personal aspect of Hitler: his physiology. Scientists claim to have found solid evidence that Hitler suffered from some form of Kallman syndromea genetic disorder that affects the development during puberty and of sexual organs. The most common thing is that the syndrome causes hypogonadism (insufficient production of testosterone during adolescence), but as the British press has been responsible for reminding these days, it has another peculiarity: up to 10% of those who have the disorder have micropenis. Beyond the obvious morbidity of this revelation, the data is interesting because of the stories that … Read more

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