“People don’t appreciate how unique it is”

Elon Musk is a polarizing figure opinions: for some he is a visionary genius; for others, a businessman with controversial practices. However, those who have worked closely with him describe a unique leadership style that challenges traditional norms of large corporations. Andrej Karpathyformer head of AI and computer vision at Tesla, spent five years working directly with him. “It’s hard to describe how unique it is”says Karpathy. But he tries: in his own words, Musk represents a leadership style that does not fit traditional molds, but is precisely what has allowed Tesla to redefine sectors such as automotive and aerospace. In some statements 2024, this former collaborator explained what makes Musk so different and how his personal style shapes the dynamics within Tesla. Against bureaucracy One of Karpathy’s main observations revolves around Musk’s emphasis on maintain small and highly specialized teamss. According to Karpathy, while many companies tend to grow in size and bureaucracy, Musk acts as a constant counterweight to that trend. “At Tesla, I practically had to beg him every time someone had to be hired“says Karpathy. In addition, Musk does not hesitate to fire employees who do not meet his standards, a policy that may seem harsh, but which in his opinion is essential to maintain agility and efficiency in a company that seeks to constantly innovate. The rejection of bureaucracy is also manifested in his aversion to non-technical middle managers: Musk prefers that engineers, and not managers, be the primary source of information and decision-making. This philosophy ensures that the company’s priorities remain aligned with its technical objectives. The importance of the work environment “He doesn’t like stagnation”. Another distinctive aspect of Musk’s leadership is his insistence on a dynamic work environment, in which employees are engaged in problem solving, which has led him to eliminate large and unnecessary meetings and to encourage employees to leave those in which they are not actively contributing. This contrasts with common practices in large Silicon Valley companies which, according to Karpathy, tend to “pamper” their employees with superficial comforts that do not always translate into greater productivity. An involved CEO Unlike many executives who delegate most decisions to senior managers, Musk has direct and constant contact with engineers and technical teams. According to Karpathy, Musk spends about 50% of his time interacting with engineering teamssomething unusual for a CEO. Your proximity allows you to deeply understand technical challenges and address bottlenecks immediately Karpathy goes so far as to give the example that if a team faces a lack of GPUs, Musk does not hesitate to contact key suppliers directly to solve the problem… even if that means calling the CEO of Nvidia directly. This level of involvement ensures that strategic decisions are based on accurate technical information, rather than going through multiple layers of management. Ambitious promises and complex realities The style of Musk also has his criticsclear. Above all because of his extreme optimism… or, rather, their tendency to promise overly ambitious goalsas fully autonomous vehicles capable of crossing the United States without human intervention, has generated skepticism. Despite having achieved significant advances, such as the arrival of robotaxis not without controversyTesla has not managed to meet these goals within the established deadlines. However, he claims that Musk’s obsession with continuous improvement is what allows Tesla to remain a leader in advanced assisted driving technologies. Image | Marcos Merino through AI In Xataka | Elon Musk’s word is not reliable: the failure of Tesla’s “solar roofs” exposes him again This topic was originally published on Genbeta in December 2024.

It turns out that there are invasive land snakes that take to the sea from Ibiza. And they are annihilating a unique lizard

In addition to being one of the great European tourist destinations, the Pitiusas Islands have a unique jewel of nature: the pitiusa lizarda unique reptile in the world that only lives there. By living in isolation, the lizard populations on each islet have evolved independently, giving rise to 28 different subspecies. This biological jewel today has a direct and truly terrifying threat: the horseshoe snake, a foreign species that was accidentally introduced to Ibiza in 2003, probably through ornamental olive trees imported from the Iberian Peninsula. Or so they thought: spotting a horseshoe snake is no longer something occasional, but they can even be seen swimming in the open sea. Spoiler: they are terrestrial snakes. what’s happening. The Center for Ecological Research and Forest Applications (CREAF) has published an academic article that covers the origin and invasion status of the horseshoe snake. The expansion map is conclusive: in 2010 the snake was present in less than 5% of the Ibizan territory, in 2016 it already occupied 40% of the island and in 2025 it had reached 90%. As stated by the research team led by Guillem Casbas and researcher Oriol Lapiedra, when it conquers a new area, it can take less than three years to eradicate the entire population of lizards. The speed of expansion is unprecedented among invasive snakes in Europe. What has never been seen is also the most disturbing: they have documented how snakes swim between islets, that is, they carry out active colonization. In 2024 they recorded a snake crossing 430 meters of open sea to the islet of Santa Eulària. The same sea that has served over the years as a barrier to the evolutionary isolation of the pitiusa lizard is no longer enough to protect it from its predator. The unstoppable advance of the horseshoe snake. Ecology Why is it important. The extinction of a species is always bad news from the point of view of fauna diversity, but this one is unique: its goodbye means that a unique and irrecoverable evolutionary lineage disappears, and according to the IUCN It is already cataloged as threatened, which means that population models predict a severe and continued reduction in the short and medium term. Beyond taxonomy, this eventual extinction would have its effect within an ecosystem as particular as the island and its balance, which could end with more extinctions due to a domino effect. In the case of the pitiusa lizard, it has pollinating and seed dispersal functions and if it does not do so, it puts the reproductive success of plants in check. On the other hand, and although its importance is more relative, the Pitiusas lizard is one of the great cultural and identity icons for those who are from Ibiza and Formentera: this amphibian is deeply rooted in the collective local imagination and popular mythology. Context. The magnitude of the problem is best understood within the biology of the islands. Islands are especially vulnerable ecosystems to invasive species because the loss of a single species can trigger cascading effects throughout the entire biological community. Invasive species enter the islands like an elephant enters a china shop: they compete for resources (more limited), alter habitats (smaller) and disturb ecological processes. The Pitiusas lizard is a critical node for the islands: however, was For millions of years it was the only terrestrial vertebrate in the archipelago and did not develop anti-predatory behaviors against snakes. A parallel case studied in depth is that of the brown tree snake on the island of Guamwhich decimated native bird and lizard populations, causing an increase in insects and altering forest dynamics. tragic consequences. The immediate ecological consequences are severe and quantifiable: there have already been local extinctions of lizards on at least 10 islets, and the snake has colonized between 12 and 15 of them through active swimming. And unfortunately, it’s just the beginning: this global study highlights that the impact of invasive vertebrate species on seed dispersal in island ecosystems is even greater than that caused by the extinctions of native fauna. Or what is the same, there may be a disruption in the plant regeneration of these islets. Likewise, its disappearance can take its toll on agriculture indirectly, as the lizard regulates the insect population. Is there a solution? The most urgent and important shock measure is to actively control the snake invasion. In 2025 the Balearic Government surpassed the 4,400 captures of invasive snakes in the Pitiusas and has already opted to leave the traps throughout the year. In 2026 the device will continue to expand with more resources. Of course, with a presence of 90% already in Ibiza, total eradication is unfeasible in the short term: the most realistic thing is to contain the advance and protect refuges. On the other hand, the conservation of the pitiusa lizard is also a priority objective, with several breeding lines of pitiusa lizards with genetic criteria in collaboration with the Barcelona Zoo. In the long term, the only structural solution is to combine the control of the snake with the conservation of the lizard’s genetics for a later reintroduction into its territory. In Xataka | The Ebro is filling with brown prawns, an invasive species that we are going to find more and more on our plates. In Xataka | Spain is witnessing a shocking phenomenon: three invasive species are feeding each other to conquer the country Cover | Albert Masats and Swimming Snakes Wipe out Endemic Lizards from Mediterranean Islets, Oriol Lapiedra

150 years ago, Spain made a unique decision in the world. Ouigo and Iryo believe that Renfe uses it to get them out of the market

They have no rolling stock. And the worst of all (for them) is that they are not going to have it. Ouigo, Iryo and a third rolling stock company have raised their voices before the National Markets and Competition Commission (CNMC) to make it clear that the current system with two gauges of track reduces their competitiveness in our country compared to Renfe. And it doesn’t seem like it’s going to change in the short term. What has happened? The CNMC has published a document with the name “Report on technical barriers to the provision of railway services”. It sets out the challenges and interventions that Spain should carry out in the coming years. It specifies that the Spanish railway system has the obligation to improve interoperability with its neighboring countries, both to facilitate the flow of passengers and goods. But there is a drawback: the track widths. And this inconvenience has a very relevant economic impact. They complain. In the document the different postures are collected of those involved. And it states that “Ouigo, Iryo and a rolling stock manufacturer (which is not specified) warn that the uncertainty regarding the schedule and details of the Gauge Migration Plan, as well as the unification of the electrification system and the implementation of the ERTMS signaling system, makes decision-making on strategic investments difficult, and they ask that the Gauge Migration Plan be prepared and published as soon as possible.” In short: the two operators and the rolling stock manufacturer complain that Adif does not have a clear plan as to whether the Iberian high-speed track gauges are going to adapt to European standards, which move in standard gauge. The same happens with the unification of the electrification system and the definitive implementation of the ERTMS system. And they defend themselves. The position of Adif and Renfe is set out in the same document. Both companies “point out that incorporating gauge change technology in the rolling stock and infrastructure is less expensive and entails fewer interruptions in traffic than the migration of the infrastructure. On the other hand, both the AESF and the DG of the Railway Sector indicate that, in addition to Talgo, there is a second manufacturer of variable gauge rolling stock for high speed, CAF, although they admit that it is currently only approved to operate at 250 km/h.” In short: neither Renfe nor Adif They believe that adapting to the standard width is economically profitable given the high economic impact. The bottleneck. What Ouigo and Iryo defend is that the current situation and the commitment to trains with wide gauge technology leaves them behind. They have two reasons to maintain this. CAF can supply trains with this technology but they are only approved to travel at a maximum of 250 km/h. Talgo is the only company with this technology with approval to circulate up to 350 km/h. They are known as Talgo AVRIL but their production is committed to Renfe. And the results are not satisfactory either.. Beyond these two manufacturers, no one seems to want to get involved in the production of trains capable of changing tracks between standard and Iberian gauge. And the fact is that their production means meeting a demand that is still a niche or a rarity in the world railway system. Very juicy. The reluctance of Adif and Renfe is not strange either. For Adif it would mean a huge investment that has to be able to make profitable with the rest of the operators when the vast majority of current corridors in Spain already operate with standard gauge. For its part, Renfe does not want to let go of this trick either. Right now, the high speed to Galicia needs trains that are capable of moving between the Iberian gauge and the standard gauge if you do not want to transfer and the Spanish company is the only one that has the trains for this. The Galician corridor has also emerged as one of the most profitable. Travel has grown so much that it has made airlines retreat and now that they have to liberalize the line, maintaining the current situation guarantees that they will continue to be the only ones that will be able to offer this trip without transfers, which is a clear competitive advantage. Photo | Falk2 In Xataka | “Whoever wants to come, should invest”: Ouigo wanted to enter the Madrid-Galicia AVE but now sees it as impossible before 2030

It is a tiny Caribbean island with a unique asset

The AI ​​is A bottomless well of burning money. There is Very few companies earning money With this technological boom and the fear that everything will be A bubble about to explode The atmosphere flies over. In the midst of this uncertain panorama, an unexpected winner has emerged, a small British island located in the Caribbean Sea. Your secret? It has control of the domain .AI .AI The domain was created in 1995 specifically for Isla de Anguila. Like the .es. With the AI ​​boom, the use of domains. The boom. Perplexity.ai, x.ai, Google.AI… They are some of the AI ​​services that these domains use, but there are many more. According to This report From the Domain Technik hosting service, in 2018 there were approximately 48,000 .AI registered domains. The figure was growing over the years, but in 2023 the thing is triggered and the 354,000 domains are reached, which meant 145% growth with respect to 2022. There are currently 870,000. Taking into account that up to date an average of 1,500 domains are being recorded. Income. As reflected in the Annual Income, Expenses and Capital Report of 2024 of the Anguilla government, in 2022 the income derived from the domain registry. In the world of AI, they are ridiculous figures, but on a small island like eel, it is an important part of its income. Caution. According to the local medium Anguilla FocusJose Vanterpol, Minister of Infrastructure and Communications said that “in the years prior to the true advance of AI, income from domains. However, they are cautious. In statements A AP News Last year, Prime Minister Ellis Webster said that “we cannot predict how long this will last (…) I do not want our economy, our country and all our programs to be based solely on this.” Other cases. Anguilla is not the only case of a domain that unexpectedly becomes a gold mine for a region. He passed with Tuvalu, an archipelago between Australia and Hawaii who saw how The .TV domains became their second source of income. There has also been similar cases With the domains .ly belonging to Libya and. Me de Montenegro. Cover image | Wikipedia In Xataka | There are such monstrously high skyscrapers in China that a new job has emerged: those who take lunch to the last plants

Spain has dozens of abandoned unique roads. Now he wants to save them making them “historical roads”

If we have the roads we have today, it was because 125 years ago A Scottish and a Welsh were fed up with the dusty roads In those early years of the car. We start to asphalt those paths, some of them part of the country’s spinebut over time they were abandoned when they were advanced by the highways. The Government of Spain wants to give them a second life. Throughout geography, there are Kilometers of national roads that are in a deplorable state. He Maintenance of highways and roads More used is the one that takes the budget, while others are at your fate. Therefore, this 2025, the Government launches a program that aims to recover and enforce those roads. And the first ‘historical road’ will be a section of the N-IV that passes through desaperros. Spain and its new “historical roads” At the beginning of September this year, the Ministry of Transport and Sustainable Mobility and the foundation of the Spanish Railways They signed A collaboration agreement with an objective: recovery of the historical roads of the State Road Network. The idea is to catalog certain ways as “Historical assets linked to transport”which implies that these roads, at some point before being replaced, helped territorial expansion with population or merchandise movements. To do this, the agreement has a budget of 300,000 euros (200,000 by the Ministry of Transportation and 100,000 covering by the Foundation of the Railways) and, during the next four years, they will have to Identify which roads are suitable to become “historical road.” It is an action that will follow the example of the Program of ‘Green Roads’ which has managed to transform more than 3,500 kilometers of old railway paths for non -motorized use. There are numerous towns and cities that have some of these kilometers of ‘Green via‘With trees, some park, pícon areas and roads to hiking or bike. And it is something similar to what is proposed for these historical roads with the objective of curbing the situation of deterioration and loss to which certain pathways are exposed, as well as to value their contribution to the historical infrastructure of the country. The project has the name of Ivapchete And, in addition to identifying the roads, it must hierarchize the sections according to the patrimonial value of the paths of their linked elements. In principle, the initiative focuses on the Spanish road network, but can be expanded to study roads that are competencies of other administrations, provided they have that historical link with the state network. Perhaps the Map of the National Special Firm Circuit of 1926 can give us a clue what other candidates would be Apart from the initiative, There is already a pilot project: The Deseñaperros. During the coming months, the General Directorate of Roads of the Ministry will promote the elaboration of a recovery project of the Posqued of the old N-IV. It is a segment of 28.6 kilometers between Almuradiel in Ciudad Real and Santa Elena in Jaén. It is not surprising taking into account your Historical importance being the main access between Castilla-La Mancha and Andalucía, Territorial Unity Symbol which facilitated both trade and mobility between the plateau and the peninsular south. For centuries, before being called N-IV, of course, it was an essential artery, but the opening of the most convenient A-4 highway left the N-VI in the shadow. Now, will return to life as the first “historical road”becoming a way associated with non -motorized mobility and valueing its cultural importance. It remains to see what the impact of the project will be and, above all, what other ways can recover in this way. Images | Emilio J. Rodríguez Posada, Concepcion Amat orta In Xataka | These are the roads where we can suffer more jams in summer. If you have to take the car, you are in time to plan

China is making time its best resource. Its rapid iteration is unique

China has open fronts in practically any technological fieldand in recent years we have seen how the country has opted in a mastodontic way in areas that could decide its position in the next decade. The Asian giant knows that time is one of the most valuable resources in the digital era, and therefore its digital manufacturing ecosystem and ultra -grape iteration is changing the rules of the game worldwide. A silent revolution. What took months to develop now is completed in weeks. The medium baiguan I explained it Through a visit to the facilities of a Robotics Startup, where it indicated that modifying a structural component at an early development stage required opening molds, a process that could cost about 200,000 yuanes and several months of waiting. “The development cycle, which used to last between one and two months, could be shortened one week or a few weeks with the help of digital manufacturing and 3D printing,” assured The medium. The processes now allow multiple iterations in the time that took time to complete one. The perfect speed ecosystem. In this sector, China does not dominate just by having cheap 3D printers manufacturers. According to the medium, its real advantage lies in an integrated ecosystem that includes ultra -efficient logistics networks, interconnected software and hardware suppliers, and a delivery capacity that allows to close the market feedback cycle in record time. The medium Point out To the Miniso company as an example: from design to sale, the entire process is digitized and can be completed in a week. Figures. Between 2015 and 2022, China’s additive manufacturing sector grew by 30% per year, According to Am Research. The firm specialized in market analysis projects that the country will obtain revenues of about 8,000 million dollars only in 3D printer sales by 2032. To put it in context, China represents 50% of the global industrial robots installation, compared to 25% in 2015. Companies like EPLUS3D have already developed metal printers with up to 64 laserssurpassing Western competitors such as Nikon SLM Solutions, who stay in 12. Cheap labor costs, yes, but there are more. For years we have thought that Chinese competitiveness was based solely on economic labor or flexible regulations. However, Baiguan appointment Its extraordinary digital capabilities, flexible supply chains and ultra -grape mechanisms for market feedback. From Roborock to Pop Mart, Chinese companies are gaining global market share not only for being cheaper, but for iterating faster. The challenge for the West. China allows companies to deduce 200% of their R&D expenses for taxes. As Point out Forbes, the United States reduced that 100% to 10% deduction in 2017. In addition, it must be taken into account that Chinese companies not only dominate their domestic market. And as explained by the media, China is engaged by opening offices both in Europe and the United States, offering cheap significant equipment without sacrificing quality. China uses time in its favor through the development of new technologies, and it is the same time that will tell us where the country will be located in the next decade. Cover image | Catgirlmutant In Xataka | Goal is living in the first person a world reality. You may want not to depend on China, but you actually depend on it

During centuries Galicia was a thriving land of olive groves with unique varieties in the world. What changed it is still a mystery

If you think of Galicia, in their landscapes, probably the first thing that comes to mind is your sinuous coastline, your beaches and cliffsserpentant channels such as the Sil River as it passes through the Ribeira Sacra, castrosleafy Atlantic forests, grasslands with cattle … The list is extensive (and diverse), but probably the olive groves are not included, a stamp that usually associates more to the peninsular south. It was not always the case. There are indications that Galicia had an interesting relationship with the cultivation of the olive trees that can go back to the times of Gallaecia. When that link declined and what were the causes of the sunset and that the olive tree does not prosper are issues that still generate debate among experts. Olivos in Galicia? Yes. And its relationship comes from afar, it is rich and has inspired researchers who have identified in Galician lands A wide catalog of unique native olive varieties in the world. The indications are suggestive, although I recognized years ago The historian Lourenzo Fernández during a days held in Pontevedra and focused precisely on the olive trees, shadows are still in that bond. “There is no specific historical, nor bibliographic research that will address the presence of Olivos in Galicia,” explained. Looking at the Roman Gallaecia. The link between Galicia and the olive tree can be traced at least Roman Gallaecia. In the middle of the last century, during an excavation in an area of ​​Vigo that is called precisely Oliveira, archaeologists discovered a Roman deposit which included bricks, bases, a mortar, mills, amphorae … and an oil press, among other vestiges. “It is thought that it could be a villa or factoring by the oleic press found, the only example appeared in Galicia. The possible relationship between the obtaining of oil and the olive tree in Vigo was also pointed out, in ancient times, with the activity that would give name to the place,” Explain The Quiñones de León Museum, where the remains rest, although those responsible recognize that the scarcity of remains of oil and amphorae lamps in the environment can be interpreted as a “lack of consumption.” Leaving its mark. Vigo’s is not the only proof of the interesting historical link between Olivo and Galicia. There are ethnographic studies that show that in the region there are dozens and tens of place names related to olive trees, olive groves, oil and similar references. Years ago at least 70 were counted. The CSIC has also identified about twenty varieties of native olive trees, unique in the world, and there is a record of specimens standing from the 18th century, the oldest in the community that are still alive, according to a analysis done years ago. A “very present” crop in Galicia. The presence of olive trees in Galicia put it in value since The industry itself to the organisms public. “The olive culture was very present in Galicia since the time of the Romans. The primitive settlers ate olives, although they did not know the methods of extraction of the oil. The Romans are those that introduce the knowledge of these methods that are transmitted by the territory. Galicia became one of the conquered territories of which the most oil went out to Rome in the second and second centuries.” They detail From Ribeira Sacra tourism. In the community it is not strange either find References of traditional oil mills in which the fruit was used. “In Galicia there were olive plantations, in some cases, of large dimensions, that if we follow some sources they would have been possible thanks to the introduction of this crop in our land by the Romans,” historian Felipe Aira explained in January An article of The voice of Galicia that he remembers how the Jews and Judeoconvers used the ‘liquid gold’ in their kitchens and at least part of the olive trees were preserved in the properties of the church, even after their decline in Galicia, for their value for the elaboration of the liturgical oils. And the great unknown arises. All The chronicles that tell the link between the Olivos and Galicia end up reaching the same question: what explains that their cultivation ends up losing weight? Why Galicia It ceased to be an olive grove? Or even simpler … Why didn’t they remain expanding until they occupy a relevant weight in the Galician fields? As Lourenzo remembered in 2018, shadows are still and a long way to explore “about the presence of Olivos in Galicia. His story is splashed with legends and inaccuracies, he said recently A chronicle Fiftymil, but is usually pointed to a complex sum of political, economic, demographic reasons and the reality of agricultural farms. Click on the image to go to Tweet. Of the Catholic Monarchs to Count Duke of Olivares. When the history of olive tree is explained in Galicia there are two names that are usually repeated: the first, the Catholic Monarchs; The second, Count Duke of Olivares. An extended theory ensures that the former, Fernando II of Aragon and Isabel I of Castilla, adopted a series of decisions about taxes and reorganization that punished the Galician plantations and favored that olive trees be started in the region. But … why? There are those who say that the purpose was to favor the repopulation and crops of the newly reconquered lands of the Peninsular South. Others argue that in their decision, more political factors would have weighed and that when the Galician olive trees sought to penalize the territory and their aristocracy. The “Doma and castration from Galicia, “said the intellectual of the twentieth century, Alfonso Daniel Rodríguez Castelao about the policies of the Catholic Monarchs. The context is key and was marked by the defeat of Juana la Beltraneja, and therefore of the nobility that supported her in her cause, and the Irmandiños rebellion that developed in Galicia. The shadow of olive groves. The theory is even more extended that if there … Read more

Spacex has just published unpublished images of the “Rostized” Starship. A unique perspective of his shock after the toughest reentry

Spacex shared new images of the Starship In its tenth test flight, where he managed to complete the reentry and controlled ameter In the ocean despite visible damage in the vehicle. The material spread by Spacex shows the ship at a key moment: the moment of its spareness in the Indian Ocean, dyed of an orange tone after surviving a specially demanding reentry. A key test. The tenth test flight departed on August 26 from Starbase, in Texas, with an impeccable takeoff thanks to the 33 super heavy engines. The separation of stages was also successful and the propeller managed to merit in the ocean, fulfilling its role before the starship continued its trip to space. The milestones in space. Once separated from the propeller, the Starship carried out a complete combustion that placed it in its suborbital trajectory and allowed to validate several key tests. Among them, the deployment of eight Starlink satellite simulators and the second redempted in the history of a Raptor engine in space, two milestones that Spacex considers essential for the development of future missions. Click to see the original publication in x The challenge of the reentry. The reentry was the most critical point of the mission. Spacex had already chained several failed attempts. This, in a way, had questioned the capacity of the vehicle to survive this phase. This time, the ship faced extreme conditions with part of its incomplete thermal shield and the flaps subjected to a deliberate effort. Even with visible damage in the rear skirt, the Starship managed to maintain control and move towards its destination. Spacex’s message. Moments ago, Spacex published a message in which he summed up the scope of what was achieved: “Starship exceeded the reentry with missing tiles intentionally, she completed maneuvers to force her flaps, suffered visible damage in the rear skirt and flaps, and still executed a turn and a landing ignition.” Despite these conditions, the ship managed to preserve sufficient maneuverability to go accurately towards its field of shock in the Indian. The image released next to the statement reinforces that idea. The starship, imposing on the launch platform with all its intact thermal tiles, now appears with a very different appearance: blackened, with a coppery tone that makes it seem almost “roasted” after passing through the atmosphere. Spacex has not explained the exact reason for this change, although on the Internet they have not taken to appear theories. A millimeter closure. The mission culminated with the Starship gently threading in the Indian Ocean, approximately three meters from the planned area. For Spacex, the value of the flight is not that the ship can be reused, but in what has been learned during the test. Each data collected in extreme conditions approaches the company to its goal of developing the first large -sized launcher fully reusable. In Xataka | The “Wow!” Signal signal It was even more powerful than astronomers calculated: half a century later, the mystery is complicated

Zaragoza witnessed this weekend of a most unique weather event: a supercell

From an extreme drought that ravaged the Iberian Peninsula for more than a year we have passed to a few months during which the extreme phenomena have come characterized by intense rainfall. We have seen various rainfall records beaten and we have also seen the most tragic face of these events. A new extreme event. Although it will not come with the destructive power of other storms, the province of Zaragoza has witnessed during the weekend of a new extreme event, A supercell. Supercells are storms with defined characteristics that make them a kind of miniature cyclone. They are more typical of areas such as the great plains of the United States than from Spain, but on Saturday the Aragonese could witness one of these storms. On Sunday, the State Meteorology Agency (AEMET) maintained yellow alerts for adverse phenomena in a good part of the area between the Ebro Valley and the Pyrenees. Notices that materialized in intense storms. The same day, Aemet shared through its social networks some images of this unique storm. Supercells are intense but not completely strange phenomena: similar events were also recorded in the region, according to explained at the time The local press. On that occasion, the storms came to cause a blackout in the city of Huesca, He pointed to the HERALDO DE ARAGÓN. What exactly is a supercell? Supercells are storms With an organized structure. In them, an ascending current transports, sometimes with high speeds, warm air from the surface to higher areas. There, the warm and humid air joins the cold and dry air, which leads to rainfall that can be intense and result in hails. The coexistence of an ascending and another descending current is one of the characteristics of these storms. One that also implies that these types of events can be extended for a certain time. This encounter between warm and cold air has another effect: it makes the storm turn. This triggers another of the characteristics of this type of storms, a mesocyclone, that is, an intermediate cyclone. From hail to tornadoes. According to explains the geographer Pedro de la Fuente to Meteoredthis type of storm involves risks derived from their rainfall and the winds associated with them. These adverse phenomena include hail, which can reach an important size; floods, as a consequence of rainfall, or important bursts of descendant wind. One of the most striking effects of this type of storms are, however, tornadoes. These are not frequent, even when these types of storms occur, but they can be one of the most relevant consequences of the supercells. From Ebro to the Mediterranean. If the storms in the Ebro valley have been protagonists during the weekend, the Mediterranean could take over on Thursday, Meteorologists point out. The storms could affect in particular the southern zone of the Valencian Community, as well as Murcia, Albacete and east of the province of Cuenca. In Xataka | “One of the most extreme phenomena in history”: meteorologists are dismayed before the heat wave of Africa and Asia Image | Matthieu pron

In the exciting world of the supernovas this newly discovered has something unique: its form is perfect

Identifying a Supernova is an event that astronomers usually celebrate with enthusiasm. And it is not for less if we consider that it is One of the most violent events with which we can run into the cosmos. Knowing them better is very important because it can help us understand more precisely what the latest stages of The life of mass starsand also the mechanisms that explain how the material caused by stellar synthesis can lead to new star systems. The mathematical tools handled by astrophysics current nuclear fusion that take place in the nucleus of mass stars. During the stage known as the main sequence, stars obtain their energy from the fusion of hydrogen nuclei. As this chemical element is consumed, the star begins to produce helium nuclei, and, of course, its composition begins to evolve. During this process a huge amount of energy is released and the star is forced to continuously readjust to maintain hydrostatic balance, a phenomenon that is the result of the coexistence of two opposite forces capable of compensating. One of them is the gravitational contraction, which compresses the subject of the star, pressing it without rest. And the other is the radiation and gase pressure, which is the fruit of the ignition of the nuclear oven and tries to expand the star. ‘Teleios’ is the perfect supernova If the star is massive enough will begin to consume its helium reserves and produce new carbon nuclei, while maintaining the hydrostatic balance we have talked about. And if the star has enough mass will not stop in carbon production. When this element is exhausted in the nucleus, it will be readjusted, compressing and increasing once again its temperature to stop the gravitational collapse. From this moment the carbon nuclei will enter into ignition through nuclear fusion processes and the production of even heavier chemical elements will begin. While in the star’s core is being carried out Carbon fusionin the immediately superior layer the ignition of the helium is maintained. And above this, of hydrogen. The iron core suddenly contracts under the enormous pressure that all layers of material that it has above the material exerted on it During star nucleosynthesis, stars acquire a layer -shaped structure similar to that of an onion. In the nucleus lies the heaviest element, and from there we are ascending by layers finding more and lighter elements. If the star has accumulated sufficient mass there will come a time when the nucleus will be essentially constituted by iron, and from this chemical element it is not possible to obtain more energy through nuclear fusion processes. At that time the radiation and gase pressure is not enough to counteract gravitational contraction, so Iron core suddenly contracts under the enormous pressure that all layers of material that it has above. The star has lost the hydrostatic balance. At this moment all this matter loses the support that the nucleus exercised, which is now much more compact, and falls on it with enormous speed. When all that star material touches the surface of the nucleus there is a rebound effect that causes it to be fired with a huge energy towards the stellar medium, being disseminated. A supernova has just been produced. Some of them are so energetic that for a few seconds they emit more light than the entire galaxy that contains them. This was probably what happened to ‘Teleios’, the remnant of a supernova recently discovered by an astronomer team from the University of Sidney (Australia). The remnant is nothing more than the material that is spread in a region of space after the production of a supernova In the field of Supernovas, the remainder is nothing more than the material that is scattered in a region of space after the production of a supernova. It usually acquires the shape of an expanding bubble in which it is possible to identify an external and brilliant region in which the shock wave and a diffuse interior section occurs constituted by dense and cold dust and dust. The image we publish on the cover of this article recreates a supernova in the most reliable way possible, and in it we can clearly observe the two regions in which we have just inquired. Astronomers from the University of Sidney have identified the remnant ‘Teleios’ using the Australian Askap telescope (Australian Square Kilometre Array Pathfinder), and have realized something very interesting: its geometry is almost perfectly circular. It is very unusual that the material left after the production of a supernova acquires such a perfect geometry. Although these astrophysics shuffle several scenarios that could explain this morphology, in Your scientific article They propose to carry out more observations to determine why ‘Teleios’ is so different from other remnants. The identification of the conditions that have given rise to this cosmic object can help cosmologists to understand better What happens during the production of a Supernova and what parameters delimit the evolution of the remnant that will remain in space long after this great explosion occurs. In fact, these Australian astrophysicists have estimated that ‘Teleios’ is at a distance between 7,170 and 25,100 light years. Image | Generated by Xataka with Dall-e More information | Arxiv In Xataka | The CERN detector took 20 years to be built. It is one of the most complex machines created by the human being

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