why is it still visible today

From space, everything looks different. Without going any further, the barrage of precipitation that ha cracked face of the peninsula. Or that one of the human structures that are best seen from space They are the greenhouses of Almería. From space the mountain ranges are striking, but in Africa a dark line that cuts the terrain for hundreds of kilometers draws attention and is not a road. Its existence dates back 2.5 billion years, more than half of Earth’s history. And the reasons why it is still visible today also explain why it will still be there in so many millions more: it is the Great Dam of Zimbabwe. First of all, a couple of nuances about its name: it is large and crosses Zimbabwe but it is not a dam: it is the longest known continuous rock intrusion on the planet, according to the Zimbabwe Geological Survey. Or rather, a lopolito. It is 550 kilometers long, between 3 and 13 km wide and protrudes up to 450 meters above the plateaus of the Zimbabwe Craton. Throughout history, NASA has photographed this geological landmark on several occasions on various missions, mainly through its Earth observation satellites and also by astronauts. Its image is so characteristic that it works as a reference point from space. Live Science collects which in 1983 was immortalized by astronauts aboard the space shuttle Challenger, collecting only the southern part of the structure. In 2000, a 62.2 x 39.2 kilometer section of the Great Dam was captured by the Advanced Space Thermal Emission and Reflection Radiometer (ASTER) satellite, aboard NASA’s Terra satellite: NASA/GSFC/MITI/ERSDAC/JAROS, and US/Japan ASTER Science Team Zimbabwe’s Great Dam is much more than a geological landmark If there is an iconic and detailed photograph from space, it is it that of September 30, 2010. It was taken by an astronaut on the Expedition 25 crew of the International Space Station with a Nikon D2Xs camera and a 180mm lens. POT 2.5 billion years ago, molten rock from the Earth’s mantle found cracks in the crust to climb between existing rock layers. As it cooled, it solidified into a mass of truly hard rock: the Great Dam of Zimbabwe. The slowness of this process and the stability of the craton explain why it has survived erosion practically intact for millions of years. The Great Dam is like a time capsule: That this enormous formation has survived undeterred allows the scientific community to study what the interior of the Earth was like at that time, something that is not possible in most of the planet. And of course, it makes it still visible from space. As the magma rose and cooled, the minerals separated and concentrated in layers like sediments, leaving large accumulations of platinum, chromite, nickel, vanadium and gold. Because the Great Dam of Zimbabwe also has great strategic and economic importance, as it houses the world’s third largest reserve of platinum and contains other critical minerals for the technology industry. In Xataka | This is the impressive interactive map to see the Earth in 4K live from space and monitor satellites In Xataka | The brutal floods facing Portugal and western Spain, seen from space Cover | POT

China’s nuclear renaissance is now visible from space

Since China detonated its first atomic bomb In the midst of the Cold War, its relationship with nuclear matters has been marked by secrecy, declared prudence and a deep distrust of the great powers. For decades it chose to stay in the background, building capabilities away from the spotlight and speaking little about them. This historical silence is key to understanding why, each time that something moves In that area, the world pays attention. A silent resurgence in the mountains. The story was brought in a special the new york times this weekend through satellite images. In the humid and rugged valleys of Sichuan, far from prying eyes, China is reactivating and expanding a nuclear infrastructure conceived for another era but adapted to a rivalry between superpowers that is intensifying again after the end of the historic pact between Moscow and Washington that we counted recently. Images from space show new bunkers, ramps and industrial complexes with ventilation and thermal dissipation systems that aim to high risk activitiesintegrated into a framework that no longer seems defensive or residual, but rather coherent with an accelerated and planned expansion that has been gaining pace since the end of the last decade. The inheritance of the “Third Line” and its update. These enclaves are not born from nothing, but sink their roots in what was called lto “Third Line”promoted by Mao Zedong to protect the nuclear heart of the country from American or Soviet attacks. For decades, that internal nuclear empire remained in the backgroundreduced and fragmented when global tensions eased. Today, those same facilities seem regain prominencenot as relics, but as modernized nodes that recover their central function in a China that has left behind the doctrine of minimum containment. Zitong in 2022 (top) and 2026 (bottom) Zitong and Pingtong: key pieces. They explained in the Times that the work detected in Zitong suggests advanced testing of high-precision explosives, essential to perfect the implosion that initiates a nuclear reaction, while the Pingtong complex, with its large ventilation chimney and its characteristic architecture, points to the manufacture of metal cores of the warheads, probably plutonium. The structural similarity with foreign facilities specialized in this process, like Los Alamos National Laboratory, reinforces the idea that China is closing the full cycle of design, testing and production of modern nuclear weapons. Intelligence, data and the value of what is not seen. Beyond the visible, the real leap is in the integration of intelligence, geospatial analysis and advanced simulation capabilities. The great laser ignition laboratory in Mianyang allows the behavior of nuclear warheads to be studied without the need for actual detonations, an approach that reduces political and environmental risks while accelerating technical refinement. In this way, each work detected is only a fragment, but together they form a mosaic that reveals a strategy based on accumulating knowledge, validating designs and gaining operational confidence without openly crossing international red lines. A direct challenge to gun control. There has been a lot of talk about these in recent weeks with the end of the New Start treaty. This Chinese acceleration would complicate any attempt to revive global nuclear control agreements after the expiration of that last treaty between the United States and Russia. Washington insists that China must form part of any new framework, but Beijing avoids commitments that limit growth that it considers necessary for its status as a global power. The American accusations of covert tests, rejected by China, add a layer of mistrust that pushes both sides to plan based on worst-case scenarios. Taiwan and the logic of enhanced deterrence. The backdrop to this effort is China’s perception of vulnerability to nuclear coercion American, especially in a plausible crisis over Taiwan. As? A largest arsenaldiverse and technologically tuned offers Beijing the feeling of sufficient immunity to maneuver more freely in a conventional conflictraising calculation risks for all parties. In that sense, what is happening under the mountains of Sichuan is not only an industrial modernization, but rather points more to a strategic bet that redefines the balance and forces the rest of the world to interpret, and the “intimate enemies” to react, if They are not doing it anymore. Image | Planet Labs, Google Earth, Airbus In Xataka | The United States is convinced that China is conducting nuclear tests. The problem is that you can’t prove it. In Xataka | China is building something that looks like an oil well. It is actually a nuclear bunker with a command center

Banco Santander will close more than 200 physical offices. It is the most visible symptom of traditional banking metamorphosis

Santander plans the closure of the largest number of offices in Spain from the pandemic. According to Digital economymore than 200 branches will lower the blind this year. The arrival of Ignacio Juliá – a manager with DNA DNA forged in ING – to the direction of Santander Spain is no accident. It is a symptom. Similar to what happens to other Ibex companies – as Telefónica debating between transforming between technology company or assuming the decline as a traditional teleco-, Classic banking has an existential dilemma ahead. On the one hand, Maintain physical offices has become a financial ballast to the Neobancoswhich operate with infinitely lighter and more efficient structures. On the other hand, those same offices They are a competitive advantage for certain demographicparticularly among over 60 years, who concentrate a large part of the financial assets in Spain. Neobancos have gained ground in basic operation and current accounts, but still have important limitations in more complex products, such as mortgages or heritage management. Santander himself has recognized your annual report “The value of the human connection” provided by branches, especially for vulnerable clients, while simultaneously advances towards what defines as “a digital bank with branches”. The Ying and the Yang. Investment management is that space that still has traditional banking to uncheck from the Neobancos, where even the face to face with the manager (the one who gives a branch) can be an incentive for the client. There they face independent platforms, such as Trade Republic or the Spanish Indexa, with increasing traction, better fame … and lower commissions. Of course, they do not usually have exclusive products for large heritage, more complicated land for Fintech. Santander has no urgency for these changes. In 2024 he got a record benefit of more than 12,500 million euros. Your current business model is still profitable. The issue is whether the digitalization strategy combined with selective physical presence will be sufficient to maintain its relevance when the digital generation becomes the main segment with heritage. Traditional bank is not disappearing, but it is in full metamorphosis. It is looking for a balance between digital efficiency and the added value that human interaction provides. In Xataka | The digital counterrevolution reaches the classrooms: seven CCAA backs down with the screens and mark a change of trend Outstanding image | Santander Bank

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.