Se você quer catalogar e jogar seus jogos retrô diretamente do SteamOS, conheça e veja como instalar o RetroDECK no Linux via Flatpak.

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OpenAI and Broadcom Inc. have developed a custom artificial intelligence chip called Jalapeno. OpenAI is now testing the samples. The companies say this chip can cut costs by 50%. Ed Ludlow reports. (Source: Bloomberg)

OpenAI unveiled its first custom artificial intelligence chip developed in partnership with Broadcom Inc., part of a bid by the ChatGPT maker to gain an edge by tailoring hardware to better run its AI products.

Se você curte o game BattleTech e quer se divertir no PC, conheça e veja como instalar o jogo MegaMek no Linux via Flatpak.

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The patient had traveled to the Democratic Republic of Congo, the health ministry said. Workers are racing to trace those who may have had contact.

Se você quer se divertir em um game de sobrevivência, conheça e veja como instalar o jogo Survivor Reborn no Linux via Snap.

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Se você quer um game de paciência do Windows da era de 2001, conheça e veja como instalar o jogo Scorpion cards no Linux via Snap.

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Se você quer se divertir com um bom RPG no terminal, conheça e veja como instalar o jogo Omega no Linux via Snap.

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That is good news for patients, but officials fear it will make controlling the spread of the disease harder.

Plague is often linked to medieval Europe, crowded cities, and rats carrying infected fleas. However, a new study published in the journal Nature shows that the disease was already killing people thousands of years earlier. Researchers have discovered that plague caused deadly outbreaks among hunter-gatherers in Siberia about 5,500 years ago, long before cities and […]

The post Ancient plague was already deadly 5,500 years ago, study reveals appeared first on Knowridge Science Report.

Com 327.906 peças, mais de 9,400 horas de montagem e 111 km/h de velocidade máxima. Conheça o carro de Lego mais rápido de sempre, o Koenigsegg Sadair’s Spear, que foi construído à escala real, para celebrar o lançamento do novo conjunto 1/8 com 4.104 peças.

The post Conheça o Koenigsegg feito com 327.906 peças de Lego que envergonha alguns carros a sério appeared first on Tek Notícias.

Go's IPO — Japan's biggest so far this year — has done more than provide a much-needed boost to the country's languishing listing season. It has also supplied the taxi-hailing app with the capital required to address an existential issue: Japan's shortage of drivers.

Segundo o Experis Tech Talent Outlook, a Projeção para a Criação Líquida de Emprego no setor das TI em Portugal fixa-se nos 32% para o terceiro trimestre de 2026, uma queda de 18% face ao trimestre anterior. A automação surge como o principal motivo apontado pelas empresas que preveem reduzir equipas.

The post Setor tecnológico português abranda contratações, mas mantém-se como o segundo com melhores perspectivas no país appeared first on Tek Notícias.

In a groundbreaking series of experiments conducted by researchers at the University of Jena, scientists have revisited and expanded upon a century-old discovery that shapes our understanding of embryonic development. Originally unearthed by Hans Spemann and his student Hilde Mangold in 1924, the concept of the “organiser” is a pivotal developmental mechanism that directs the formation of body axes during the early stages of an embryo’s growth. Spemann and Mangold’s pioneering work involved tissue transplantation between amphibian embryos, revealing the presence of a group of cells within the blastopore that orchestrate the development of a secondary body axis. This discovery earned Spemann a Nobel Prize in 1935 but tragically Mangold passed away young, never witnessing the lasting impact of their findings.

The new research from Jena not only reaffirms these foundational insights but extends them dramatically into the early evolutionary origins of metazoans. Using delicate microsurgical manipulation, the team studied the ribbed comb jelly Mnemiopsis leidyi, a member of the ancient phylum Ctenophora. This lineage diverged from that of other animals approximately 700 million years ago, according to the latest evolutionary models. By transplanting small portions of blastoporal tissue from one comb jelly embryo into another, Jena researchers induced a secondary body axis, effectively recapitulating Spemann and Mangold’s classic findings but now in one of the earliest-diverging animal lineages. The experiment demonstrated that the organiser’s developmental blueprint is deeply conserved across vast evolutionary time frames.

What makes these experiments particularly astounding is the technical difficulty involved. Comb jelly embryos measure only about 120 micrometers in diameter—just a fraction larger than the width of a human hair—while the transplanted tissue samples were barely 20 micrometers in size. Dr. Stanislav Kremnyov, the lead experimentalist, had to master an extraordinary level of manual dexterity to integrate these tiny groups of cells into host embryos without triggering rejection or other developmental derailments. To an outside observer, it appeared as if the researchers were “dissecting clouds,” a vivid metaphor used by Prof. Andreas Hejnol, who leads the research team at Jena.

The functional transplantation of organising tissue between individuals of the same species was spectacular enough. Yet the Jena team dared to push further by performing xenotransplantations, transferring organiser tissue across animal orders into the sea anemone, a cnidarian species that diverged from ctenophores roughly 60 million years later. Remarkably, the transplanted organiser tissue also initiated axis formation in the sea anemone embryos. This unprecedented success underscores the extraordinary evolutionary conservation of developmental mechanisms underpinning animal body plans. Xenotransplantation of organiser tissues across distinct phyla had never before been demonstrated, marking this as a historic advance in developmental biology.

Beyond the cellular choreography, the study also zeroed in on genetic underpinnings. The team identified, for the first time, the specific gene responsible for organiser formation in the sea anemone, bridging molecular mechanisms across species boundaries. This gene appears to regulate the signalling networks critical to early embryonic axis determination, providing a molecular anchor to the organiser’s functional role. Such findings hint that the genetic toolkit necessary for complex body plan organisation was already present in the earliest multicellular ancestors of modern animals.

These discoveries overturn previous assumptions that organiser-driven axis formation was a feature exclusive to more recently evolved animal groups such as bilaterians. Instead, the findings position the organiser as a primordial control system in multicellular organism development, dating back to the dawn of animal evolution itself. It suggests a remarkable evolutionary continuity where the fundamental blueprints for constructing the three-dimensional architecture of multicellular animals remained largely stable across hundreds of millions of years.

The implications of this research extend far beyond ctenophores and sea anemones. Since the organiser guides the spatial coordination of cell fate during development, understanding its origins and conservation sheds light on the evolutionary emergence of animal diversity and complexity. It also offers potential new perspectives for biomedical research, particularly in regenerative medicine and congenital defect studies, where guiding axis formation and tissue patterning is critical.

Technical mastery was central to these findings. The researchers employed advanced microscopy and vital cell staining techniques allowing them to trace transplanted cells dynamically within host embryos. Coupling this with precise microsurgical transplantation provided not only functional but also visual confirmation of organiser activity. This combination of cutting-edge experimental methods enabled insights previously thought unattainable in such fragile and inaccessible embryonic systems.

Prof. Andreas Hejnol reflects on the evolutionary significance with enthusiasm: “Our data demonstrate that this organizer mechanism coordinates the entire body axis and is conserved among one of the earliest-diverging animal lineages, suggesting that complex body plan organisation arose very early in metazoan evolution.” His team’s work bridges developmental biology with evolutionary biology, providing a vivid example of how ancient developmental principles underpin the incredible diversity of life forms on Earth today.

This research, published in the prestigious journal Nature, represents a milestone in understanding early animal evolution and embryogenesis. It dramatically shifts the paradigm surrounding the origins of the organiser and prompts reconsideration of the molecular and cellular processes foundational to animal multicellularity. As scientists continue to explore these ancient mechanisms, further revelations about the building blocks of life’s complexity are eagerly anticipated.

Subject of Research: Animals
Article Title: A blastoporal organiser in a ctenophore
News Publication Date: 17-Jun-2026
Web References: http://dx.doi.org/10.1038/s41586-026-10643-z
Image Credits: Lisa-Marie Barf
Keywords: embryonic development, organiser, blastopore, ctenophore, Mnemiopsis leidyi, evolutionary biology, axis formation, multicellularity, xenotransplantation, sea anemone, cnidaria, developmental genetics

An international team of paleontologists from Romania, Hungary and Italy has identified a new genus and species of herbivorous, duck-billed dinosaur from an incomplete skeleton unearthed in the Hațeg Basin, a bowl-shaped depression in the Carpathians of present-day Romania.

The post New Duck-Billed Dinosaur Unearthed in Romania appeared first on Sci.News: Breaking Science News.

Baidu’s Apollo Go has received a Level 4 autonomous driving permit in Switzerland for AmiGo, a robotaxi service it is running with Swiss Post’s PostBus, putting the Chinese tech giant ahead of Waymo and Tesla in deploying driverless vehicles into European public transport.

The Federal Roads Office (FEDRO) special permit covers an 80 km² service area across three eastern cantons, and Baidu says the project is on track to become the largest planned automated public transport operation of its kind in Europe.

An international team of researchers led by Dr. Liora Kolska Horwitz of the Hebrew University of Jerusalem’s National Natural History Collections, working at the site of the oldest dated intentional use of fire by ancient human ancestors, South Africa’s Wonderwerk Cave, has found new evidence pushing that date even earlier into prehistory.

The research team behind the potentially history-altering findings said the discovery, which suggests that ancient hominins intentionally controlled fire, resulting in charred animal bones sometime between 1.07 and 1.79 million years ago, provides researchers with previously unavailable insights into how our ancestors first began to harness one of the most important tools in the evolution of human society and culture.

The study also introduced the archaeological community to a promising new method for analyzing burned bone samples by monitoring its light-emitting properties.

Intentional Use of Fire Provided Human Ancestors with a Critical Tool

According to a statement announcing the study, Dr. Horwitz, who is co-director of the Wonderwerk Cave project with Prof. Michael Chazan at the University of Toronto, and colleagues note the historical significance of fire, ranging from warmth and predator protection to extended daylight and the cooking of meat. However, historians have struggled to identify a single moment or historical period where humanity’s ancient ancestors first started to use fire intentionally.

“Evidence of fire from such ancient sites is often subtle and difficult to detect,” Dr. Horwitz explained.

Before the new analysis, the oldest agreed-upon evidence for intentional fire use also came from Wonderwerk Cave. Situated within the Kalahari Desert of South Africa, the cave provided evidence placing fire use to approximately 1 million years ago.

While that study used the most advanced techniques available, the team behind the new study decided to employ a non-invasive process that involves illuminating ancient bone fragments with specific wavelengths of light to determine whether they had been exposed to intense heat. In cases where bones have been heated to fire-like temperatures, the right wavelength of light will cause them to glow.

Remains Likely Left by Homo Erectus

Because evidence from ancient sites is scarce, the team’s non-invasive technique allowed them to study tiny fossilized rodent bones left in the cave by owls without damaging them. The team noted that using remains that accumulated naturally on the ancient cave floor provides an “independent, non-anthropogenic record” of ancient events within the local area.

After exposing the ancient bone to specific wavelengths of light, the team found what they described as “clear signs of burning.” Dr. Horowitz confirmed the findings, noting that the team’s analysis reveals “fire was repeatedly present deep inside Wonderwerk Cave.”

Because the deposits were found over 30 meters deep in the cave, the team ruled out wildfires as a possible source of combustion. The layer also lacked bat guano remains, which the team noted “rules out spontaneous combustion.”

A chemical analysis of the charred bones dated them to between 1.07 and 1.79 million years ago, redating the 2012 findings. Critically, the evidence for ancient fire use was in an archaeological layer “associated with artifacts” from the initial Acheulean period, which is consistent with the dating. If correct, this would make the likeliest early human ancestor that used fire Homo erectus.

Although the findings appear to extend the chronology of one of the earliest known records of fire use associated with hominins by as much as 790,000 years, the research team said the findings do not suggest that these early proto-humans could create fire “at will.” Instead, the likeliest scenario involves early human ancestors collecting fire from natural sources, such as lightning-induced wildfires on the African savanna, and bringing it into the cave.

“The early humans introduced this fire into the cave on multiple occasions and maintained it there before it eventually died out,” the team’s statement explained.

The team did not immediately pinpoint what methods these early hominins used to maintain a burning fire. However, they suggested that burning owl pellets as additional fuel may inadvertently have scorched the rodent bones.

A New Tool for Identifying Traces of Burning

When discussing the implications of the new, earlier date for the first intentional use of fire, Dr. Horwitz said the discovery shows that early human ancestors “were not simply passive observers of natural fires,” but instead were “actively engaging with fire and incorporating it into their lives.”

Beyond offering an earlier date range for early fire use, the work provides clues into how our ancestors used fire before they could make it on their own. The study also debuted a new, non-invasive, portable tool for investigating early fire use, which the study authors note “can be applied to large collections of fossils without damaging them.”

“Our study provides new tools for identifying traces of ancient burning,” Dr. Horwitz explained, with the team adding that application of this new technique to sites around the world “may help clarify the origins and development of one of the most consequential technologies in human history.”

The study “New evidence for Early Pleistocene use of fire at Wonderwerk Cave (South Africa)” was published in PLOS One.

Christopher Plain is a Science Fiction and Fantasy novelist and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him directly at christopher@thedebrief.org.