Nature: A Microsoft researcher [this week] presented results behind the company's controversial claim last month to have created the first 'topological' qubits -- a long-sought goal of quantum computing. In front of a packed room at a meeting of the American Physical Society (APS), Chetan Nayak, a theoretical physicist leading Microsoft's quantum computing effort in Redmond, Washington, explained how the company is developing topological qubits, which would be the building blocks for a noise-resistant quantum computer. Physicists in the audience told Nature's news team they are still unsure whether Microsoft really has made the first topological qubits, however. "It's a hard problem," says Ali Yazdani, an experimental physicist at Princeton University in New Jersey. To anyone trying to make topological qubits, he says, "good luck." When Nayak displayed measurement data during his presentation, he acknowledged that a characteristic signal was difficult to see due to electrical noise, prompting Cornell University theorist Eun-Ah Kim to question its robustness. Microsoft says additional details will be available in a forthcoming paper on the arXiv preprint server. Further reading: Scientists Question Microsoft's Quantum Computing Claims; Microsoft Quantum Computing 'Breakthrough' Faces Fresh Challenge

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Sony has developed a new TV display technology combining individual red, green, and blue LEDs for backlighting, potentially offering a middle ground between existing Mini LED and OLED panels. Dubbed "General RGB LED Backlight Technology," the system enables precise color control without sacrificing brightness, reaching 4000 cd/m2 -- matching Sony's professional reference monitors. Unlike conventional Mini LED TVs that use arrays of blue LEDs, Sony's RGB implementation delivers significantly improved color accuracy and viewing angles. In side-by-side comparisons with Sony's premium Bravia 9 Mini LED TV, the RGB prototype displayed deeper color gradations and eliminated the characteristic bluish blooming effect around bright objects on dark backgrounds. The technology isn't entirely novel, the Verge reports -- Sony released a Qualia TV with RGB backlighting in 2004 and demonstrated "Crystal LED" prototypes in 2012. Competitors including Hisense, TCL, and Samsung are developing similar systems. While the RGB LED prototype outshone Sony's QD-OLED A95L in brightness, differences in color reproduction were less pronounced. The technology appears particularly promising for larger displays in bright environments where OLED's limitations become apparent.

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An anonymous reader quotes a report from Reuters: The Belgian prosecutor's office said on Tuesday that it has charged five people in connection with a bribery investigation in the European Parliament allegedly linked to China's Huawei. The five were detained last week. Four have now been arrested and charged with active corruption and involvement in a criminal organization, while a fifth faces money laundering charges and has been released conditionally. The prosecutor's officer did not disclose the names of those involved or give information that could identify them. It said new searches had taken place on Monday, this time at European Parliament offices. Huawei said last week it took the allegations seriously. "Huawei has a zero tolerance policy towards corruption or other wrongdoing, and we are committed to complying with all applicable laws and regulations at all times," it said. The prosecutors have said the alleged corruption took place "very discreetly" since 2021 under the guise of commercial lobbying and involved payments for taking certain political stances or excessive gifts such as food and travel expenses or regular invitations to football matches.

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The abstract of a paper published on National Bureau of Economic Research: Ensuring broad access to the patent system is crucial for fostering innovation and promoting economic growth. To support this goal, the U.S. Patent and Trademark Office offers reduced fees for small and micro entities. This paper investigates whether fee rates affect the filing of applications by small and micro entities. Exploiting recent fee reforms, the study evaluates the relationship between fee changes and the number of new entrants, controlling for potential confounding factors such as legislative changes. The findings suggest that fee reductions alone are insufficient to significantly increase participation in the patent system among small and micro entities.

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During the company's GTC 2025 keynote today, Nvidia founder and CEO Jensen Huang announced Isaac GR00T N1 -- the company's first open-source, pre-trained yet customizable foundation model designed to accelerate the development and capabilities of humanoid robots. "The age of generalist robotics is here," said Huang. "With Nvidia Isaac GR00T N1 and new data-generation and robot-learning frameworks, robotics developers everywhere will open the next frontier in the age of AI." The Verge reports: Huang demonstrated 1X's NEO Gamma humanoid robot performing autonomous tidying jobs using a post-trained policy built on the GR00T N1 model. [...] Other companies developing humanoid robots who have had early access to the GR00T N1 model include Boston Dynamics, the creators of Atlas; Agility Robotics; Mentee Robotics; and Neura Robotics. Originally announced as Project GR00T a year ago, the GR00T N1 foundation model utilizes a dual-system architecture inspired by human cognition. System 1, as Nvidia calls it, is described as a "fast-thinking action model" that behaves similarly to human reflexes and intuition. It was trained on data collected through human demonstrations and synthetic data generated by Nvidia's Omniverse platform. System 2, which is powered by a vision language model, is a "slow-thinking model" that "reasons about its environment and the instructions it has received to plan actions." Those plans are passed along to System 1, which translates them into "precise, continuous robot movements" that include grasping, moving objects with one or two arms, as well as more complex multistep tasks that involve combinations of basic skills. While the GR00T N1 foundation model is pretrained with generalized humanoid reasoning and skills, developers can customize its behavior and capabilities for specific needs by post-training it with data gathered from human demonstrations or simulations. Nvidia has made GR00T N1 training data and task evaluation scenarios available for download through Hugging Face and GitHub.

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Those who care about the world and America’s role in it need to create a new vision for how to help vulnerable people in other countries.

Blowing dust reduced visibility to near zero in some parts of New Mexico, prompting road closures. Forecasters say dangerous fire conditions will persist until Thursday.

While the Israeli government has stopped short of a ground invasion for now, its new strikes in Gaza seem to be an effort to force concessions from Hamas.

In rural India, guarantees of equal representation on village councils are easily thwarted. But some women are pushing back against “boss husbands.”

A Democratic lawmaker is drafting a letter to Secretary of State Marco Rubio asking whether a database on thousands of children has been deleted.

The attorney general echoed remarks by President Trump, as protesters against Elon Musk and his efforts to shrink the government have defaced and destroyed Tesla vehicles.

An anonymous reader quotes a report from Ars Technica: [A] team of Korean researchers [describe] how they've engineered a bacterial strain that can make a useful polymer starting with nothing but glucose as fuel. The system they developed is based on an enzyme that the bacteria use when they're facing unusual nutritional conditions, and it can be tweaked to make a wide range of polymers. The researchers focused on the system bacterial cells use for producing polyhydroxyalkanoates (PHAs). These chemicals are formed when the bacterial cells continue to have a good supply of carbon sources and energy, but they lack some other key nutrients needed to grow and divide. Under these circumstances, the cell will link together small molecules that contain a handful of carbons, forming a much larger polymer. When nutritional conditions improve, the cell can simply break down the polymer and use the individual molecules it contained. The striking thing about this system is that it's not especially picky about the identity of the molecules it links into the polymer. So far, over 150 different small molecules have been found incorporated into PHAs. It appears that the enzyme that makes the polymer, PHA synthase, only cares about two things: whether the molecule can form an ester bond (PHAs are polyesters), and whether it can be linked to a molecule that's commonly used as an intermediate in the cell's biochemistry, Coenzyme A. Normally, PHA synthase forms links between molecules that run through an oxygen atom. But it's also possible to form a related chemical link that instead runs through a nitrogen atom, like those found on amino acids. There were no known enzymes, however, that catalyze these reactions. So, the researchers decided to test whether any existing enzymes could be induced to do something they don't normally do. [...] Overall, the system they develop is remarkably flexible, able to incorporate a huge range of chemicals into a polymer. This should allow them to tune the resulting plastic across a wide range of properties. And, considering the bonds were formed via enzyme, the resulting polymer will almost certainly be biodegradable. There are, however, some negatives. The process doesn't allow complete control over what gets incorporated into the polymer. You can bias it toward a specific mix of amino acids or other chemicals, but you can't entirely stop the enzyme from incorporating random chemicals from the cell's metabolism into the polymer at some level. There's also the issue of purifying the polymer from all the rest of the cell components before incorporating it into manufacturing. Production is also relatively slow compared to large-scale industrial production. The findings have been published in the journal Nature Chemical Biology.

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In a call with President Trump, Russia’s leader agreed to pause strikes on energy infrastructure. Ukraine also appeared willing to accept such a halt, though it fell short of the unconditional cease-fire the country had already agreed to.

The marine mammals swarmed around the recovery team and capsule, welcoming home the astronauts shortly after they splashed down off Florida’s Gulf Coast.

The decision to fire the two members of the traditionally independent regulatory body is likely to face a legal challenge.

Scholars say the papers are unlikely to include dramatic revelations but could shed light on lingering questions — including about the intelligence agencies.

Italian newspaper Il Foglio claims to have published the world's first entirely AI-generated edition as part of a month-long experiment to explore AI's impact on journalism. The special four-page supplement, available in print and online, features AI-written articles, headlines, and reader letters. The only thing the human journalists provided were prompts. The Guardian reports: The front page of the first edition of Il Foglio AI carries a story referring to the US president, Donald Trump, describing the "paradox of Italian Trumpians" and how they rail against "cancel culture" yet either turn a blind eye, or worse, "celebrate" when "their idol in the US behaves like the despot of a banana republic." The front page also features a column headlined "Putin, the 10 betrayals," with the article highlighting "20 years of broken promises, torn-up agreements and words betrayed" by Vladimir Putin, the Russian president. In a rare upbeat story about the Italian economy, another article points to the latest report from Istat, the national statistics agency, on the redistribution of income, which shows the country "is changing, and not for the worse" with salary increases for about 750,000 workers being among the positive effects of income tax reforms. On page 2 is a story about "situationships" and how young Europeans are fleeing steady relationships. The articles were structured, straightforward and clear, with no obvious grammatical errors. However, none of the articles published in the news pages directly quote any human beings. The final page runs AI-generated letters from readers to the editor, with one asking whether AI will render humans "useless" in the future. "AI is a great innovation, but it doesn't yet know how to order a coffee without getting the sugar wrong," reads the AI-generated response.

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Showdowns between people and bulls can still go on, but the animals can no longer be hurt or killed. Some bullfighting proponents said the law imperils an ancient tradition.

Sean Duffy, the U.S. transportation secretary, demanded a long list of details about crime in the subway and on buses in New York.

Trend Micro uncovered an eight-year-long spying campaign exploiting a Windows vulnerability involving malicious .LNK shortcut files, which attackers padded with whitespace to conceal commands. Despite being reported to Microsoft in 2023, the company considers it a UI issue rather than a security risk and has not prioritized a fix. The Register reports: The attack method is low-tech but effective, relying on malicious .LNK shortcut files rigged with commands to download malware. While appearing to point to legitimate files or executables, these shortcuts quietly include extra instructions to fetch or unpack and attempt to run malicious payloads. Ordinarily, the shortcut's target and command-line arguments would be clearly visible in Windows, making suspicious commands easy to spot. But Trend's Zero Day Initiative said it observed North Korea-backed crews padding out the command-line arguments with megabytes of whitespace, burying the actual commands deep out of sight in the user interface. Trend reported this to Microsoft in September last year and estimates that it has been used since 2017. It said it had found nearly 1,000 tampered .LNK files in circulation but estimates the actual number of attacks could have been higher. "This is one of many bugs that the attackers are using, but this is one that is not patched and that's why we reported it as a zero day," Dustin Childs, head of threat awareness at the Zero Day Initiative, told The Register. "We told Microsoft but they consider it a UI issue, not a security issue. So it doesn't meet their bar for servicing as a security update, but it might be fixed in a later OS version, or something along those lines." After poring over malicious .LNK samples, the security shop said it found the vast majority of these files were from state-sponsored attackers (around 70 percent), used for espionage or information theft, with another 20 percent going after financial gain. Among the state-sponsored crews, 46 percent of attacks came from North Korea, while Russia, Iran, and China each accounted for around 18 percent of the activity.

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