Al Hajar Mountains in OmanL_B_Photography/Shutters​tock A section of Earth’s mantle beneath Oman appears to be unusually warm, in what researchers say may be the first known “ghost plume” – a column of hot rock emanating from the lower mantle without apparent volcanic activity on the surface. Mantle plumes are mysterious upwellings of molten rock believed to transmit heat from the core-mantle boundary to the Earth’s surface, far from the edges of tectonic plates. There are a dozen or so examples thought to occur underneath the middle of continental plates – for instance, beneath Yellowstone and the East African rift. “But these are all cases where you do have surface volcanism,” says Simone Pilia at the King Fahd University of Petroleum and Minerals in Saudi Arabia. Oman has no such volcanic clues. Pilia first came to suspect there was a plume beneath Oman “serendipitously” after he began analysing new seismic data from the region. He observed the velocity of waves generated by distant earthquakes slowed down in a cylindrical area beneath eastern Oman, indicating the rocks there were less rigid than the surrounding material due to high temperatures. Other independent seismic measurements showed key boundaries where minerals deep in the Earth change phases in a way consistent with a hot plume. These measurements suggest the plume extends more than 660 kilometres below the surface. The presence of a plume could also explain why the region has continued to rise in elevation long after tectonic compression – a geological process where the Earth’s crust is squeezed together – stopped. It also fits with models of what could have caused a shift in the movement of the Indian tectonic plate. “The more we gathered evidence, the more we were convinced that it is a plume,” says Pilia, who named the geologic feature the “Dani plume” after his son. Unmissable news about our planet delivered straight to your inbox every month. Sign up to newsletter “It’s plausible” that a plume indeed exists there, says Saskia Goes at Imperial College London, adding the study is “thorough”. However, she points out narrow plumes are notoriously difficult to detect. If it does exist, however, the presence of a “ghost plume” contained within the mantle by the relatively thick rocky layer beneath Oman would suggest there are others, says Pilia. “We’re convinced that the Dani plume is not alone.” If there are many other hidden plumes, it could mean more heat from the core is flowing directly through the mantle via plumes, rather than through slower convection, says Goes. “It has implications, potentially, for the evolution of the Earth if we get a different estimate of how much heat comes out of the mantle.” Journal referenceEarth and Planetary Science Letters DOI: 10.1016/j.epsl.2025.119467 Topics: #earths #mantle #have #hidden #plumes

In a nutshell: As nations set ever more ambitious targets for renewable energy and electrification, the humble high-voltage cable has emerged as a linchpin – and a potential chokepoint – in the race to decarbonize the global economy. A Bloomberg interview with Claes Westerlind, CEO of NKT, a leading cable manufacturer based in Denmark, explains why. A global surge in demand for high-voltage electricity cables is threatening to stall the clean energy revolution, as the world's ability to build new wind farms, solar plants, and cross-border power links increasingly hinges on a supply chain bottleneck few outside the industry have considered. At the center of this challenge is the complex, capital-intensive process of manufacturing the giant cables that transport electricity across hundreds of miles, both over land and under the sea. Despite soaring demand, cable manufacturers remain cautious about expanding capacity, raising questions about whether the pace of electrification can keep up with climate ambitions, geopolitical tensions, and the practical realities of industrial investment. High-voltage cables are the arteries of modern power grids, carrying electrons from remote wind farms or hydroelectric dams to the cities and industries that need them. Unlike the thin wires that run through a home's walls, these cables are engineering marvels – sometimes as thick as a person's torso, armored to withstand the crushing pressure of the ocean floor, and designed to last for decades under extreme electrical and environmental stress. "If you look at the very high voltage direct current cable, able to carry roughly two gigawatts through two pairs of cables – that means that the equivalent of one nuclear power reactor is flowing through one cable," Westerlind told Bloomberg. The process of making these cables is as specialized as it is demanding. At the core is a conductor, typically made of copper or aluminum, twisted together like a rope for flexibility and strength. Around this, manufacturers apply multiple layers of insulation in towering vertical factories to ensure the cable remains perfectly round and can safely contain the immense voltages involved. Any impurity in the insulation, even something as small as an eyelash, can cause catastrophic failure, potentially knocking out power to entire cities. // Related Stories As the world rushes to harness new sources of renewable energy, the demand for high-voltage direct currentcables has skyrocketed. HVDC technology, initially pioneered by NKT in the 1950s, has become the backbone of long-distance power transmission, particularly for offshore wind farms and intercontinental links. In recent years, approximately 80 to 90 percent of new large-scale cable projects have utilized HVDC, reflecting its efficiency in transmitting electricity over vast distances with minimal losses. But this surge in demand has led to a critical bottleneck. Factories that produce these cables are booked out for years, Westerlind reports, and every project requires custom engineering to match the power needs, geography, and environmental conditions of its route. According to the International Energy Agency, meeting global clean energy goals will require building the equivalent of 80 million kilometersof new grid infrastructure by 2040 – essentially doubling what has been constructed over the past century, but in just 15 years. Despite the clear need, cable makers have been slow to add capacity due to reasons that are as much economic and political as technical. Building a new cable factory can cost upwards of a billion euros, and manufacturers are wary of making such investments without long-term commitments from utilities or governments. "For a company like us to do investments in the realm of €1 or 2 billion, it's a massive commitment... but it's also a massive amount of demand that is needed for this investment to actually make financial sense over the next not five years, not 10 years, but over the next 20 to 30 years," Westerlind said. The industry still bears scars from a decade ago, when anticipated demand failed to materialize and expensive new facilities sat underused. Some governments and transmission system operators are trying to break the logjam by making "anticipatory investments" – committing to buy cable capacity even before specific projects are finalized. This approach, backed by regulators, gives manufacturers the confidence to expand, but it remains the exception rather than the rule. Meanwhile, the industry's structure itself creates barriers to rapid expansion, according to Westerlind. The expertise, technology, and infrastructure required to make high-voltage cables are concentrated in a handful of companies, creating what analysts describe as a "deep moat" that is difficult for new entrants to cross. Geopolitical tensions add another layer of complexity. China has built more HVDC lines than any other country, although Western manufacturers, such as NKT, maintain a technical edge in the most advanced cable systems. Still, there is growing concern in Europe and the US about becoming dependent on foreign suppliers for such critical infrastructure, especially in light of recent global conflicts and trade disputes. "Strategic autonomy is very important when it comes to the core parts and the fundamental parts of your society, where the grid backbone is one," Westerlind noted. The stakes are high. Without a rapid and coordinated push to expand cable manufacturing, the world's clean energy transition could be slowed not by a lack of wind or sun but by a shortage of the cables needed to connect them to the grid. As Westerlind put it, "We all know it has to be done... These are large investments. They are very expensive investments. So also the governments have to have a part in enabling these anticipatory investments, and making it possible for the TSOs to actually carry forward with them." #shortage #highvoltage #power #cables #could

In 2024, Egypt completed its 1,155km stretch of the Cairo–Cape Town Highway, a 10,228km‑long road connecting 10 African countries – Egypt, Sudan, South Sudan, Ethiopia, Kenya, Tanzania, Zambia, Zimbabwe, Botswana and South Africa.   The imaginary of ‘Cape to Cairo’ is not new. In 1874, editor of the Daily Telegraph Edwin Arnold proposed a plan to connect the African continent by rail, a project that came to be known as the Cape to Cairo Railway project. Cecil Rhodes expressed his support for the project, seeing it as a means to connect the various ‘possessions’ of the British Empire across Africa, facilitating the movement of troops and natural resources. This railway project was never completed, and in 1970 was overlaid by a very different attempt at connecting the Cape to Cairo, as part of the Trans‑African Highway network. This 56,683km‑long system of highways – some dating from the colonial era, some built as part of the 1970s project, and some only recently built – aimed to create lines of connection across the African continent, from north to south as well as east to west.  Here, postcolonial state power invested in ‘moving the continent’s people and economies from past to future’, as architectural historians Kenny Cupers and Prita Meier write in their 2020 essay ‘Infrastructure between Statehood and Selfhood: The Trans‑African Highway’. The highways were to be built with the support of Kenya’s president Jomo Kenyatta, Ghana’s president Kwame Nkrumah and Ghana’s director of social welfare Robert Gardiner, as well as the United Nations Economic Commission for Africa. This project was part of a particular historical moment during which anticolonial ideas animated most of the African continent; alongside trade, this iteration of Cape to Cairo centred social and cultural connection between African peoples. But though largely socialist in ambition, the project nevertheless engaged modernist developmentalist logics that cemented capitalism.  Lead image: Over a century in the making, the final stretches of the Cairo–Cape Town Highway are being finished. Egypt completed the section within its borders last year and a section over the dry Merille River in Kenya was constructed in 2019. Credit: Allan Muturi / SOPA / ZUMA / Alamy. Above: The route from Cairo to Cape Town, outlined in red, belongs to the Trans‑African Highway network, which comprises nine routes, here in black The project failed to fully materialise at the time, but efforts to complete the Trans‑African Highway network have been revived in the last 20 years; large parts are now complete though some links remain unbuilt and many roads are unpaved or hazardous. The most recent attempts to realise this project coincide with a new continental free trade agreement, the agreement on African Continental Free Trade Area, established in 2019, to increase trade within the continent. The contemporary manifestation of the Cairo–Cape Town Highway – also known as Trans‑African Highway4 – is marked by deepening neoliberal politics. Represented as an opportunity to boost trade and exports, connecting Egypt to African markets that the Egyptian government view as ‘untapped’, the project invokes notions of trade steeped in extraction, reflecting the neoliberal logic underpinning contemporary Egyptian governance; today, the country’s political project, led by Abdel Fattah El Sisi, is oriented towards Egyptian dominance and extraction in relation to the rest of the continent.  Through an allusion to markets ripe for extraction, this language brings to the fore historical forms of domination that have shaped the connections between Egypt and the rest of the continent; previous iterations of connection across the continent often reproduced forms of domination stretching from the north of the African continent to the south, including the Trans‑Saharan slave trade routes across Africa that ended in various North African and Middle Eastern territories. These networks, beginning in the 8th century and lasting until the 20th, produced racialised hierarchies across the continent, shaping North Africa into a comparably privileged space proximate to ‘Arabness’. This was a racialised division based on a civilisational narrative that saw Arabs as superior, but more importantly a political economic division resulting from the slave trade routes that produced huge profits for North Africa and the Middle East. In the contemporary moment, these racialised hierarchies are bound up in political economic dependency on the Arab Gulf states, who are themselves dependent on resource extraction, land grabbing and privatisation across the entire African continent.  ‘The Cairo–Cape Town Highway connects Egypt to African markets viewed as “untapped”, invoking notions steeped in extraction’ However, this imaginary conjured by the Cairo–Cape Town Highway is countered by a network of streets scattered across Africa that traces the web of Egyptian Pan‑African solidarity across the continent. In Lusaka in Zambia, you might find yourself on Nasser Road, as you might in Mwanza in Tanzania or Luanda in Angola. In Mombasa in Kenya, you might be driving down Abdel Nasser Road; in Kampala in Uganda, you might find yourself at Nasser Road University; and in Tunis in Tunisia, you might end up on Gamal Abdel Nasser Street. These street names are a reference to Gamal Abdel Nasser, Egypt’s first postcolonial leader and president between 1956 and 1970.  Read against the contemporary Cairo–Cape Town Highway, these place names signal a different form of connection that brings to life Egyptian Pan‑Africanism, when solidarity was the hegemonic force connecting the continent, coming up against the notion of a natural or timeless ‘great divide’ within Africa. From the memoirs of Egyptian officials who were posted around Africa as conduits of solidarity, to the broadcasts of Radio Cairo that were heard across the continent, to the various conferences attended by anticolonial movements and postcolonial states, Egypt’s orientation towards Pan‑Africanism, beginning in the early 20th century and lasting until the 1970s, was both material and ideological. Figures and movements forged webs of solidarity with their African comrades, imagining an Africa that was united through shared commitments to ending colonialism and capitalist extraction.  The route between Cape Town in South Africa and Cairo in Egypt has long occupied the colonial imaginary. In 1930, Margaret Belcher and Ellen Budgell made the journey, sponsored by car brand Morris and oil company Shell Credit: Fox Photos / Getty The pair made use of the road built by British colonisers in the 19th century, and which forms the basis for the current Cairo–Cape Town Highway. The road was preceded by the 1874 Cape to Cairo Railway project, which connected the colonies of the British Empire Credit: Library of Congress, Geography and Map Division This network of eponymous streets represents attempts to inscribe anticolonial power into the materiality of the city. Street‑naming practices are one way in which the past comes into the present, ‘weaving history into the geographic fabric of everyday life’, as geographer Derek Alderman wrote in his 2002 essay ‘Street Names as Memorial Arenas’. In this vein, the renaming of streets during decolonisation marked a practice of contesting the production of colonial space. In the newly postcolonial city, renaming was a way of ‘claiming the city back’, Alderman continues. While these changes may appear discursive, it is their embedding in material spaces, through signs and maps, that make the names come to life; place names become a part of the everyday through sharing addresses or giving directions. This quality makes them powerful; consciously or unconsciously, they form part of how the spaces of the city are navigated.  These are traces that were once part of a dominant historical narrative; yet when they are encountered in the present, during a different historical moment, they no longer act as expressions of power but instead conjure up a moment that has long passed. A street in Lusaka named after an Egyptian general made more sense 60 years ago than it does today, yet contextualising it recovers a marginalised history of Egyptian Pan‑Africanism.  Markers such as street names or monuments are simultaneously markers of anticolonial struggle as well as expressions of state power – part of an attempt, by political projects such as Nasser’s, to exert their own dominance over cities, towns and villages. That such traces are expressions of both anticolonial hopes and postcolonial state power produces a sense of tension within them. For instance, Nasser’s postcolonial project in Egypt was a contradictory one; it gave life to anticolonial hopes – for instance by breaking away from European capitalism and embracing anticolonial geopolitics – while crushing many parts of the left through repression, censorship and imprisonment. Traces of Nasser found today inscribe both anticolonial promises – those that came to life and those that did not – while reproducing postcolonial power that in most instances ended in dictatorship.  Recent efforts to complete the route build on those of the post‑independence era – work on a section north of Nairobi started in 1968 Credit: Associated Press / Alamy The Trans‑African Highway network was conceived in 1970 in the spirit of Pan‑Africanism At that time, the routes did not extend into South Africa, which was in the grip of apartheid. The Trans‑African Highway initiative was motivated by a desire to improve trade and centre cultural links across the continent – an ambition that was even celebrated on postage stamps There have been long‑standing debates about the erasure of the radical anticolonial spirit from the more conservative postcolonial states that emerged; the promises and hopes of anticolonialism, not least among them socialism and a world free of white supremacy, remain largely unrealised. Instead, by the 1970s neoliberalism emerged as a new hegemonic project. The contemporary instantiation of Cape to Cairo highlights just how pervasive neoliberal logics continue to be, despite multiple global financial crises and the 2011 Egyptian revolution demanding ‘bread, freedom, social justice’.  But the network of streets named after anticolonial figures and events across the world is testament to the immense power and promise of anticolonial revolution. Most of the 20th century was characterised by anticolonial struggle, decolonisation and postcolonial nation‑building, as nations across the global south gained independence from European empire and founded their own political projects. Anticolonial traces, present in street and place names, point to the possibility of solidarity as a means of reorienting colonial geographies. They are a reminder that there have been other imaginings of Cape to Cairo, and that things can be – and have been – otherwise. 2025-06-13 Kristina Rapacki Share #cape #cairo #making #unmaking #colonial

Ballerina is what happens when a studio wants to extend a franchise but really has no reason to do so except a financial one. Subtitled From The World of John Wick, this action thriller contains too much action and precious little thrills. Directedby Len Wiseman of Underworld fame, Ballerina is set in the same universe as the four majestic adrenaline epics starring Keanu Reeves, and incorporates as many elements from those films as possible, including the Continental Hotel and the Ruska Roma, not to mention appearances from Ian McShane, Anjelica Huston, the late, great Lance Reddick, and Mr. Reeves himself. But what is also found in ample supply in the John Wick movies and sadly missing in Ballerina is heart, character, and a sense of conviction. At the center of the movie is a miscast, utterly bland Ana de Armas as Eve Macarro, whose father’s death sent her as a little girl into the custody of McShane’s Winston Scott and, eventually, the tutelage of the Directorof the Ruska Roma ballet/assassin school. It’s there that Eve goes through the usual training montage, with her inability to dance only matched by her evident aptitude at killing and fighting. Once her training is complete, Eve is sent out into the world on Ruska Roma business, but of course her main goal is avenging her dad, who was killed by members of a mysterious cult led by the enigmatic Chancellor. No sooner can you say “she’s gone rogue” than she does just that, jetting off to Prague in pursuit of a cult memberwho’s trying to get himself and his own little daughter out from under the Chancellor’s thumb, while finding herself at odds with the Director and pursued by the Chancellor’s minions at every turn. The movie’s thin “lady vengeance” premise, which we’ve seen countless times before, is reheated once again by screenwriter Shay Hatten, who has co-written the last two John Wick entries but seems lost here. Unlike John Wick himself, whose single-minded quest for revenge over the death of his dog took on mythic overtones as more layers to both John and the surreal world of elegant criminality in which he moved were revealed, Eve has nothing to define her that hasn’t been done or said before. It doesn’t help that Armas, while up to the role’s physicality, offers nothing in terms of personality—she’s an empty vessel. Which is a shame, since she’s displayed earthiness, complexity, and a sexy playfulnessin previous work. The rest of the non-Wick cast is forgettable as well, with Byrne’s Chancellor and his entire regime badly underdeveloped, and Reedus completely wasted in what amounts to maybe two scenes. McShane, Reddick, and Huston just go through their paces, spouting lots of portentous lines about “choice” and “fate” that ring mostly hollow, as does a late-stage twist that carries no weight because one of the characters involved barely registers. As for the Baba Yaga himself, the largely non-verbal Reeves is the “Chekhov’s gun” of the film: introduced briefly in the first act, he inevitably turns up again in the third act, parachuted in by the magic of rumored reshoots even though his contribution to the narrative amounts to absolutely nothing. It’s always nice to see him, but if you took him out, it wouldn’t drastically change the picture. Speaking of reshoots, there’s a Frankenstein nature to the proceedings that provides evidence for the reports that Wick directorChad Stahelski refilmed much of the movie after Wiseman’s first draft came up short. While the first act is a murky, enervated slog, things seem to pick up in the middle, with a more eye-catching color scheme, a creative, free-flowing use of the camera, and some of the more inventive, oddball action that has become part and parcel of the franchise—most notably in a scene where de Armas and an enemy smash a pile of dinner plates over each other’s heads with manic Three Stooges-like energy. Unfortunately, there’s also a sadistic edge to a lot of the action this time as well, particularly in a climactic fight involving flamethrowers that badly wants to emulate the famous overhead apartment shot from John Wick: Chapter 4 but goes on for far too long and ultimately becomes actively unpleasant. That’s a problem with even the better action on hand in Ballerina, as if the filmmakers want to make up for the film’s deficiencies by overdoing what the series is best known for. Hatten’s script was an original piece that was rewritten to fit into the John Wick universe, with elements introduced in John Wick: Chapter 3 – Parabellum to pave the way for the arrival of Eve and Ballerina. But this reverse engineering highlights the pitfalls of trying to create a cinematic universe without stopping to wonder whether it’s a good idea. Watching John Wick stonily fight and slaughter his way through his off-center world and its population of funky, eccentric weirdos has been fantastic funbecause of the unique nature of the character and that world. But dropping the more conventional, cliched tropes of Ballerina into the mix, along with a protagonistnot nearly as compelling, only exemplifies that the John Wick movies are character-driven first and foremost. All the brutal action, heavy-handed callbacks, and predictable cameos in the world can’t make this Ballerina into a better dancer. Ballerina opens in theaters in the U.S. on Friday, June 6. Join our mailing list Get the best of Den of Geek delivered right to your inbox! #ballerina #review #ana #armas #vehicle

Why it matters: A technological leap in fiber optics has shattered previous limitations, achieving what experts once considered impossible: transmitting data at 1.02 petabits per second – enough to download every movie on Netflix 30 times over – across 1,808 kilometers using a single fiber no thicker than a human hair. At the heart of this breakthrough – driven by Japan's National Institute of Information and Communications Technologyand Sumitomo Electric Industries – is a 19-core optical fiber with a standard 0.125 mm cladding diameter, designed to fit seamlessly into existing infrastructure and eliminate the need for costly upgrades. Each core acts as an independent data channel, collectively forming a "19-lane highway" within the same space as traditional single-core fibers. Unlike earlier multi-core designs limited to short distances or specialized wavelength bands, this fiber operates efficiently across the C and L bandsthanks to a refined core arrangement that slashes signal loss by 40% compared to prior models. The experiment's success relied on a complex recirculating loop system. Signals traveled through an 86.1-kilometer fiber segment 21 times, simulating a cross-continental journey equivalent to linking Berlin to Naples or Sapporo to Fukuoka. To maintain integrity over this distance, researchers deployed a dual-band optical amplification system, comprising separate devices that boosted signals in the C and L bands. This enabled 180 distinct wavelengths to carry data simultaneously using 16QAM modulation, a method that packs more information into each pulse. // Related Stories At the receiving end, a 19-channel detector, paired with advanced MIMOprocessing, dissected interference between cores, much like untangling 19 overlapping conversations in a crowded room. Schematic diagram of the transmission system This digital signal processor, leveraging algorithms developed over a decade of multi-core research, extracted usable data at unprecedented rates while correcting for distortions accumulated over 1,808 km. The achievement caps years of incremental progress. In 2023, the same team achieved 1.7 petabits per second, but only across 63.5 km. Earlier efforts using 4-core fibers reached 0.138 petabits over 12,345 km by tapping the less practical S-band, while 15-mode fibers struggled with signal distortion beyond 1,001 km due to mismatched propagation characteristics. The new 19-core fiber's uniform core design sidesteps these issues, achieving a capacity-distance product of 1.86 exabits per second per kilometer – 14 times higher than previous records for standard fibers. Image diagram of 19-core optical fiber. Presented as the top-rated post-deadline paper at OFC 2025 in San Francisco, this work arrives as global data traffic is projected to triple by 2030. While challenges remain, such as optimizing amplifier efficiency and scaling MIMO processing for real-world use, the technology offers a viable path to petabit-scale networks. Researchers aim to refine production techniques for mass deployment, potentially enabling transoceanic cables that move entire data centers' worth of information hourly. Researchers aim to refine production techniques for mass deployment, potentially enabling transoceanic cables that move entire data centers' worth of information hourly. Sumitomo Electric's engineers, who designed the fiber's coupled-core architecture, note that existing manufacturing lines can adapt to produce the 19-core design with minimal retooling. Meanwhile, NICT's team is exploring AI-driven signal processing to further boost speeds. As 6G and quantum computing loom, this breakthrough positions fiber optics not just as a backbone for tomorrow's internet, but as the central nervous system of a hyperconnected planetary infrastructure. #ultrafast #fiber #sets #global #speed

A Fungal Disease Ravaged North American Bats. Now, Researchers Found a Second Species That Suggests It Could Happen Again White-nose syndrome caused millions of bat deaths, and scientists are sounding the alarm that a second fungus could be disastrous if it reaches American wildlife Lillian Ali - Staff Contributor May 30, 2025 A little brown batis seen with white fuzz on its nose, a characteristic of the deadly white-nose syndrome. Ryan von Linden / New York Department of Environmental Conservation In February 2006, a cave explorer near Albany, New York, took the first photograph of bats with a mysterious white growth on their faces. Later, biologists studying the mammals in caves and mines discovered piles of dead bats in the state—also with the fuzzy white mold. The scientists were floored. For years, no one knew what was causing the mass die-offs from this “white-nose syndrome.” In early 2007, Albany residents called local authorities with reports of typically nocturnal bats flying in broad daylight. “They were just dying on the landscape,” wildlife biologist Alan Hicks told the Associated Press’ Michael Hill in 2008. “They were crashing into snowbanks, crawling into woodpiles and dying.” At last, scientists identified a culprit: The bats had succumbed to an infection caused by the fungus Pseudogymnoascus destructans. Since its initial discovery, white-nose syndrome has killed millions of bats across 40 U.S. states and nine Canadian provinces, making it “the most dramatic wildlife mortality event that’s ever been documented from a pathogen,” DeeAnn Reeder, a disease ecologist at Bucknell University, tells the New York Times’ Carl Zimmer. Now, nearly two decades later, scientists have developed some promising ways to fend off the disease, including an experimental vaccine. But a new study published this week in the journal Nature warns of a newly discovered second species of fungus that, if it reaches North America, could set all that progress back. “We thought we knew our enemy, but we have now discovered it is twice the size and potentially more complex than we had imagined,” lead author Nicola Fischer, a biologist at the University of Greifswald in Germany, says in a statement. Little brown bats are susceptible to white-nose syndrome in North America. Krynak Tim, U.S. Fish and Wildlife Service The team analyzed 5,479 fungus samples collected by hundreds of citizen science volunteers across North America, Asia and Europe. They found that white-nose syndrome is caused by two distinct fungal species native to Europe and Asia, with only one species having reached North America so far. If the second species hits the continent, it could look like a “reboot” of the epidemic, Reeder tells the New York Times. Study co-author Sébastien Puechmaille, an evolutionary biologist at the University of Montpellier in France, knew bats in Europe had also been seen with white fuzz on their noses, as he tells the New York Times. But those populations didn’t die off like American bats. Charting the disease across Europe and Asia, he noticed that the fungus was able to live alongside those bats, while it ravaged American ones. In its native range, the fungus grows in the bodies of hibernating bats as their internal temperature drops, then it’s shed in the spring when they awaken. But in American bats, the fungus causes their immune systems to activate and burn fat reserves as they hibernate. The bats then wake up periodically, causing irregular activity and eventual starvation. The researchers suggest the damaging fungal spores were first brought to North America by cavers that traveled from Europe—potentially western Ukraine—to the United States without completely disinfecting their boots or rope. White-nose syndrome poses a threat not just to bats, but to whole ecosystems. Bats are vital parts of many food chains, eating insects and pollinating plants. However, they reproduce fairly slowly, only having one or two pups at a time. Rebuilding a bat population, then, could take decades. And since cave ecosystems are similarly delicate, biologists are wary of trying to kill off the fungus preemptively. “Cave ecosystems are so fragile that if you start pulling on this thread, what else are you going to unravel that may create bigger problems in the cave system?” said University of Wisconsin–Madison wildlife specialist David Drake to the Badger Herald’s Kiran Mistry in December. The discovery also occurs as the original wave of white-nose syndrome continues to spread across North America, having just crossed the Continental Divide in Colorado. Just one spore of the new species could be devastating to American bat colonies. Puechmaille tells the New York Times that policies should be put in place to make sure the second fungus does not spread to more continents, and that cavers should not move equipment between countries and should disinfect it regularly. “This work … powerfully illustrates the profound impact a single translocation event can have on wildlife,” he adds in the statement. Get the latest stories in your inbox every weekday. #fungal #disease #ravaged #north #american

Large projectile point made of Gray Whale bone from the Duruthy rockshelter, Landes, France, dated between 18,000 and 17,500 years ago.   CREDIT: Alexandre Lefebvre. Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Prehistoric stone tools are among some of the oldest and important pieces of evidence we have of a time when our species began to evolve a higher level of intelligence. Many of these tools were also made from animal bones–including the bones of some of the biggest animals on the planet. New research finds that humans living up to 20,000 years ago may have been making tools out of whale bones. The discovery not only adds more to the story of early human tool use, but gives a glimpse into ancient whale ecology. The findings are detailed in a study published May 27 in the journal Nature Communications. “That humans frequented the seashore, and took advantage of its resources, is probably as old as humankind,” Jean-Marc Pétillon, an archaeologist at the Université Toulouse Jean Jaurès in France and study co-author, tells Popular Science. “There is evidence of whale scavenging at the site of Dungo 5 in Angola dating to 1 million years.” Fragment of projectile point from the cave site of Isturitz, made of bone from right whale or bowhead whale, dated to 17,300-16,700 years before present, curated at the Musée d’Archéologie Nationale. CREDIT:  Jean-Marc Pétillon. By land and sea For our Paleolithic ancestors living in coastal areas, the sturdy bones of large whales were potentially an excellent resource for various tools. However, many prehistoric coastal archaeological sites are fragile and are at risk of rising sea levels, making reconstructing the past interactions between marine mammals and humans a challenge for scientists..   “The tools were dated between 20,000 and 16,000 years beforepresent, a period way before the invention of agriculture, and during which all human groups in the world lived a life of nomadic hunter-gatherers,” says Pétillon. “Climatically, this is the last part of the last glaciation, with a climate much colder than today.” That colder climate brought a sea level that was roughly almost 400 feet lower than it is today. With this change in sea level, we have no direct evidence of the human occupations on the shore, since the rise in sea level either wiped them out or the settlements lay buried under 300 or so feet of water.  Excavations in 2022 in the Basque cave of Isturitz, France, where several dozen whale bone objects were discovered. CREDIT: Jean-Marc Pétillon, Christian Normand. With this lack of evidence Paleolithic people have historically been viewed as inland hunters. Those living in present day western Europe would have hunted red deer, reindeer, bison, horse, and ibex. While they did hunt inland, there is a growing body of evidence from the last 20 years showing that they also took advantage of the Paleolithic seashore. “There are studies showing that people also gathered seashells, hunted seabirds, fished marine fish, etc., as a complement to terrestrial diet, and these studies were made possible because Paleolithic people carried remains of marine origin away from the seashore, into inland sites,” explains Pétillon. “Our study adds whales to the lot. It is one more contribution showing that Late Paleolithic humans also regularly frequented the seashore and used its resources.” Ancient giants In the new study, the team analyzed 83 bone tools that were excavated from sites around Spain’s Bay of Biscay and 90 additional bones uncovered from Santa Catalina Cave in Spain. They used mass spectrometry and radiocarbon dating to identify which species the bones belonged to and estimate the age of  the samples.  The bones come from at least five species of large whales–sperm, fin, blue, gray, and either right whales or bowheads. The latter two species are indistinguishable using this technique. The oldest whale specimens are dated to roughly 19,000 to 20,000 years ago, representing some of the earliest known evidence of humans using the remains of whales to make tools. Some of the whale bone points themselves were over 15 inches long.  Fragment of projectile point from the rockshelter site of Duruthy, made of gray whale bone, dated to 17,300-16,800 years before present, curated at the Arthous Abbey Museum. CREDIT: A. Lefebvre. “Most of the objects made of whale bone are projectile points, part of the hunting equipment. They can be very long and thick, and were probably hafted on spear-style projectiles rather than arrows,” says Pétillon. “The main raw material used to manufacture projectile points at that period is antler, because it is less brittle and more pliable than bone, but whale bone was preferred in certain cases probably because of its large dimensions.” The ocean’s bounty Most of these whale species identified in this study are still found in the Bay of Biscay and northeastern North Atlantic to this day. However, gray whales are now primarily limited to the North Pacific Ocean and Arctic. Additional chemical data from the tools also suggests that the feeding habits of the ancient whales were slightly different than those living today. According to the authors, this is likely due to behavioral or environmental changes. That the whales in the area have stayed relatively the same was particularly intriguing for Pétillon. “What was more surprising to me—as an archeologist more accustomed to terrestrial faunas—was that these whale species remained the same despite the great environmental difference between the Late Pleistocene and today,” he says. “In the same period, continental faunas are very different: the ungulates hunted include reindeer, saiga antelopes, bison, etc., all disappeared from Western Europe today.” Importantly, the findings here do not imply that active whaling was occurring. The techniques at the time would not allow humans to hunt sperm, blue, or fin whales and the team believes that these populations took advantage of whale strandings to harvest the bones for tools.  “The earliest evidence of active whaling is much younger, around 6,000before present in Koreaand maybe around 5,000 before present in Europe,” says Pétillon. Future studies could look at the systematic way that these ancient Atlantic Europeans systematically used the seashore and how they developed their ocean hunting techniques.  #oldestknown #whale #bone #tools #discovered

Submitted by WA Contents Open Call RaumScape: A Unique Piazzetta in Old Town Prague Czech Republic Architecture News - May 26, 2025 - 12:53   html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "; An international architectural and urban design competition has been launched through a unique collaboration between private investors, the Capital City of Prague, and the Prague 1 municipality. The goal is to transform a privately owned piazzetta at the end of Pařížská Street—an area known for its high-end retail and positioned between residential calm and a striking mix of architectural styles—into a vibrant, inclusive, and world-class public space. Located directly in front of the recently renovated Fairmont Golden Prague Hotel—formerly the brutalist InterContinental Hotel, now sensitively restored by TaK Architects—the site carries symbolic weight within the historic center of Prague. Despite its extraordinary location, it is technically the roof of an underground car park and incorporates multiple levels of garage-related infrastructure. The first stage of the competition is straightforward and non-design-focused, serving as a portfolio round. Applicants are invited to submit reference projects by June 2, 2025. RaumScape represents a landmark opportunity to reimagine a space in the historic core of one of Europe’s most architecturally and culturally rich capitals. The competition calls for creative ideas that are both visionary and grounded, shaping a public realm fit for Prague’s next century. Entirely privately funded, the project represents a significant investment of approximately €6 million, reflecting the long-term commitment of the Czech owners to revitalizing this prominent urban site. Organized by CCEA MOBA, the competition merges the architectural concept of Raumplan with landscape design—embodying a vision for a multi-layered, continuous urban realm where architecture and public space are seamlessly interwoven. It invites architects, landscape architects, and urban designers from around the world to propose bold yet context-sensitive designs that blend public, community, commercial, and social functions into a cohesive civic environment.Previously underutilized and disconnected, the 3,200 m² piazzetta now presents a rare opportunity to extend the prestige and pedestrian rhythm of Pařížská Street toward the Vltava River, introduce greenery, shade, and water features, enable barrier-free movement for pedestrians, cyclists, and families, and create a public space of lasting value that honors its UNESCO-listed heritage context while serving both local life and international visitors. This vision must also thoughtfully integrate the necessary technical infrastructure and commercial space in a way that enhances the public realm.The winning proposal will mark the final phase of Staroměstská brána—a sensitive reconstruction of a Brutalist landmark, and the culmination of a broader urban renewal initiative led by the Hotel’s private Czech owners: Pavel Baudiš, Eduard Kučera, and Oldřich Šlemr.Competition OverviewTitle: RaumScape – International Architectural and Urban Design CompetitionLocation: Miloš Forman Square, Prague, Czech RepublicArea: 3,200 m²Announcers: WIC Prague, City of Prague, Prague 1Organizer: CCEA MOBAEstimated Investment: CZK 150 millionTotal Prize Money: CZK 2.4 millionEligibility: Open to qualified architecture, landscape, and urban design professionals worldwideTwo-Stage CompetitionStage One – Portfolio SubmissionDeadline: June 2, 2025, no submission feeApplicants are asked to submit reference projects. Stage Two – Design ProposalFinalists will be invited to submit full concept designs.International JuryThe competition jury is chaired by Sarah M. Whiting, Dean of the Harvard Graduate School of Design, and includes leading Czech and international experts:- Petr Hlaváček, 1st Deputy Mayor of the Capital City of Prague- Mette Skjold, CEO and Senior Partner of SLA- Magdaléna Juříková, Director of the Prague City Gallery- Petr Burian, co-Founder of Nextline Architekti- Karel Grabein Procházka - Councillor of the Municipal District of Prague 1- Marek Tichý, founder of TaK Architects, author of the reconstruction of the former InterContinental HotelFor further details, visit the competition website.The top image in the article courtesy of CCEA MOBA.> via CCEA MOBA #open #call #raumscape #unique #piazzetta