NASA engineers have successfully revived Voyager 1's backup thrusters, unused since 2004 and once considered defunct. Space.com reports: This remarkable feat became necessary because the spacecraft's primary thrusters, which control its orientation, have been degrading due to residue buildup. If its thrusters fail completely, Voyager 1 could lose its ability to point its antenna toward Earth, therefore cutting off communication with Earth after nearly 50 years of operation. To make matters more urgent, the team faced a strict deadline while trying to remedy the thruster situation. After May 4, the Earth-based antenna that sends commands to Voyager 1 -- and its twin, Voyager 2 -- was scheduled to go offline for months of upgrades. This would have made timely intervention impossible.

To solve the problem, NASA's team had to reactivate Voyager 1's long-dormant backup roll thrusters and then attempt to restart the heaters that keep them operational. If the star tracker drifted too far from its guide star during this process, the roll thrusters would automatically fire as a safety measure -- but if the heaters weren't back online by then, firing the thrusters could cause a dangerous pressure spike. So, the team had to precisely realign the star tracker before the thrusters engaged. Because Voyager is so incredibly distant, the team faced an agonizing 23-hour wait for the radio signal to travel all the way back to Earth. If the test had failed, Voyager might have already been in serious trouble. Then, on March 20, their patience was finally rewarded when Voyager responded perfectly to their commands. Within 20 minutes of receiving the signal, the team saw the thruster heaters' temperature soar -- a clear sign that the backup thrusters were firing as planned. "It was such a glorious moment. Team morale was very high that day," Todd Barber, the mission's propulsion lead at JPL, said in the statement. "These thrusters were considered dead. And that was a legitimate conclusion. It's just that one of our engineers had this insight that maybe there was this other possible cause, and it was fixable. It was yet another miracle save for Voyager."

An anonymous reader quotes a report from the Associated Press: U.S. health officials on Friday endorsed the first blood test that can help diagnose Alzheimer's and identify patients who may benefit from drugs that can modestly slow the memory-destroying disease. The test can aid doctors in determining whether a patient's memory problems are due to Alzheimer's or a number of other medical conditions that can cause cognitive difficulties. The Food and Drug Administration cleared it for patients 55 and older who are showing early signs of the disease.

The new test, from Fujirebio Diagnostics, Inc., identifies a sticky brain plaque, known as beta-amyloid, that is a key marker for Alzheimer's. Previously, the only FDA-approved methods for detecting amyloid were invasive tests of spinal fluid or expensive PET scans. The lower costs and convenience of a blood test could also help expand use of two new drugs, Leqembi and Kisunla, which have been shown to slightly slow the progression of Alzheimer's by clearing amyloid from the brain. Doctors are required to test patients for the plaque before prescribing the drugs, which require regular IV infusions. [...]

A number of specialty hospitals and laboratories have already developed their own in-house tests for amyloid in recent years. But those tests aren't reviewed by the FDA and generally aren't covered by insurance. Doctors have also had little data to judge which tests are reliable and accurate, leading to an unregulated marketplace that some have called a "wild west." Several larger diagnostic and drug companies are also developing their own tests for FDA approval, including Roche, Eli Lilly and C2N Diagnostics. The tests can only be ordered by a doctor and aren't intended for people who don't yet have any symptoms.

Microsoft has released Command Palette, an enhanced version of its PowerToys Run launcher introduced five years ago. The utility, aimed at power users and developers, provides quick access to applications, files, calculations, and system commands through a Spotlight-like interface.

Command Palette integrates the previously separate Window Walker functionality for switching between open windows and supports launching command prompts, executing web searches, and navigating folder structures. Unlike its predecessor, the new launcher offers full customization via extensions, allowing users to implement additional commands beyond default capabilities. Available through the PowerToys application since early April, Command Palette can be triggered using Win+Alt+Space after installation

Walmart is preparing for a future where AI agents shop on behalf of consumers by adapting its systems to serve both humans and autonomous bots. As major players like Visa and PayPal also invest in agentic commerce, Walmart is positioning itself as a leader by developing its own AI agents and supporting broader industry integration. PYMNTS reports: Instead of scrolling through ads or comparing product reviews, future consumers may rely on digital assistants, like OpenAI's Operator, to manage their shopping lists, from replenishing household essentials to selecting the best TV based on personal preferences, according to the report (paywalled). "It will be different," Walmart U.S. Chief Technology Officer Hari Vasudev said, per the report. "Advertising will have to evolve." The emergence of AI-generated summaries in search results has already altered the way consumers gather product information, the report said. However, autonomous shopping agents represent a bigger transformation. These bots could not only find products but also finalize purchases, including payments, without the user ever lifting a finger. [...]

Retail experts say agentic commerce will require companies to overhaul how they market and present their products online, the WSJ report said. They may need to redesign product pages and pricing strategies to cater to algorithmic buyers. The customer relationship could shift away from retailers if purchases are completed through third-party agents. [...] To prepare, Walmart is developing its own AI shopping agents, accessible through its website and app, according to the WSJ report. These bots can already handle basic tasks like reordering groceries, and they're being trained to respond to broader prompts, such as planning a themed birthday party. Walmart is working toward a future in which outside agents can seamlessly communicate with the retailer's own systems -- something Vasudev told the WSJ he expects to be governed by industry-wide protocols that are still under development. [...]

Third-party shopping bots may also act independently, crawling retailers' websites much like consumers browse stores without engaging sales associates, the WSJ report said. In those cases, the retailer has little control over how its products are evaluated. Whether consumers instruct their AI to shop specifically at Walmart or ask for the best deal available, the outcomes will increasingly be shaped by algorithms, per the report. Operator, for example, considers search ranking, sponsored content and user preferences when making recommendations. That's a far cry from how humans shop. Bots don't respond to eye-catching visuals or emotionally driven branding in the same way people do. This means retailers must optimize their content not just for people but for machine readers as well, the report said. Pricing strategies could also shift as companies may need to make rapid pricing decisions and determine whether it's worth offering AI agents exclusive discounts to keep them from choosing a competitor's lower-priced item, according to the report.

In an exclusive interview with the BBC, AWS CEO Matt Garman said the UK must expand nuclear energy to meet the soaring electricity demands of AI-driven data centers. From the report: Amazon Web Services (AWS), which is part of the retail giant Amazon, plans to spend 8 billion pounds on new data centers in the UK over the next four years. Matt Garman, chief executive of AWS, told the BBC nuclear is a "great solution" to data centres' energy needs as "an excellent source of zero carbon, 24/7 power." AWS is the single largest corporate buyer of renewable energy in the world and has funded more than 40 renewable solar and wind farm projects in the UK.

The UK's 500 data centres currently consume 2.5% of all electricity in the UK, while Ireland's 80 hoover up 21% of the country's total power, with those numbers projected to hit 6% and 30% respectively by 2030. The body that runs the UK's power grid estimates that by 2050 data centers alone will use nearly as much energy as all industrial users consume today.

In an exclusive interview with the BBC, Matt Garman said that future energy needs were central to AWS planning process. "It's something we plan many years out," he said. "We invest ahead. I think the world is going to have to build new technologies. I believe nuclear is a big part of that particularly as we look 10 years out."

A new set of 27 Linux kernel patches introduces a "Swap Tables" mechanism aimed at enhancing virtual memory management. As Phoronix's Michael Larabel reports, "the hope is for lower memory use, higher performance, dynamic swap allocation and growth, greater extensibility, and other improvements over the existing swap code within the Linux kernel." From the report: Engineer Kairui Song with Tencent posted the Swap Table patch series today for implementing the design ideas discussed in recent months by kernel developers. The results are very exciting so let's get straight to it: "With this series, swap subsystem will have a ~20-30% performance gain from basic sequential swap to heavy workloads, for both 4K and mTHP folios. The idle memory usage is already much lower, the average memory consumption is still the same or will also be even lower (with further works). And this enables many more future optimizations, with better defined swap operations." "The patches also clean-up and address various historical issues with the SWAP subsystem," notes Larabel.

Context: In Linux, swap space acts as an overflow for RAM, storing inactive memory pages on disk to free up RAM for active processes. Traditional swap mechanisms are limited in flexibility and performance. The proposed "Swap Tables" aim to address these issues by allowing more efficient and dynamic management of swap space, potentially leading to better system responsiveness and resource utilization.

An anonymous reader quotes a report from Gizmodo: Apple's next step for CarPlay is a version you'll only get to try if you're a fan of luxury cruisers or a popular spy film franchise. CarPlay Ultra, with its new suite of exclusive features like custom gauges, is coming first to Aston Martin vehicles with the largest, most blaring dash screens. The more advanced version of CarPlay won't necessarily fix the lingering issues the software has with some modern vehicles. Segmenting CarPlay into newer and older systems may make things worse for those with aging cars. Apple's CarPlay Ultra includes a new kind of dashboard alongside real-time information that can include car diagnostics -- like tire pressure -- or dashboard gauges. You should be able to control temperature and other car-based features as well. The new version of the software includes options for dashboards or console screens, and it will work with on-screen controls, Siri, and "physical buttons."

CarPlay Ultra was supposed to launch in 2024, but Apple missed its release date by close to half a year. The new feature suite was first revealed at WWDC in 2022, where Apple promised a "unified and consistent" suite of informational dashboards offering more control over radio and AC "without ever leaving the CarPlay experience." Last year, Apple showed off "the next generation" of its car-focused app that included custom gauges and other layouts made for a variety of automakers. It lacked much of the full-width, busy design of the initial iteration from two years prior. [...]

To entice more manufacturers, CarPlay Ultra is supposed to adapt to multiple screen sizes thanks to a modular layout system with more options for companies to adhere to their own brand identity. Apple promised carmakers they could resize and reorient gauges on a dashboard like you do widgets on your iPhone. Users can change up various gauges on the dash and bring up apps like Apple Music or Maps in between your temperature gauge and speedometer. Aston Martin showed off these features on an Aston Martin DBX, a luxury SUV that costs more than $250,000. Apple said these features should be coming to the U.S. and Canada first, with more Aston Martins getting these features through software updates from local dealerships. Apple said its still trying to bring these features to brands like Hyundai, Kia, and Genesis. Maybe we'll see Ultra on a vehicle regular folk can afford. "The customizable dashboards are a way for Apple to let each carmaker have their say in how their vehicles look, but they won't help all those who are stuck with regular CarPlay on their aging beaters," concludes Gizmodo's Kyle Barr. "The new version will inevitably create a distinction between those with new software and others with legacy software..."

MIT has formally requested the withdrawal of a preprint paper on AI and scientific discovery due to serious concerns about the integrity and validity of its data and findings. It didn't provide specific details on what it believes is wrong with the paper. From a post: "Earlier this year, the COD conducted a confidential internal review based upon allegations it received regarding certain aspects of this paper. While student privacy laws and MIT policy prohibit the disclosure of the outcome of this review, we are writing to inform you that MIT has no confidence in the provenance, reliability or validity of the data and has no confidence in the veracity of the research contained in the paper. Based upon this finding, we also believe that the inclusion of this paper in arXiv may violate arXiv's Code of Conduct.

"Our understanding is that only authors of papers appearing on arXiv can submit withdrawal requests. We have directed the author to submit such a request, but to date, the author has not done so. Therefore, in an effort to clarify the research record, MIT respectfully request that the paper be marked as withdrawn from arXiv as soon as possible." Preprints, by definition, have not yet undergone peer review. MIT took this step in light of the publication's prominence in the research conversation and because it was a formal step it could take to mitigate the effects of misconduct. The author is no longer at MIT. [...]

"We are making this information public because we are concerned that, even in its non-published form, the paper is having an impact on discussions and projections about the effects of AI on science. Ensuring an accurate research record is important to MIT. We therefore would like to set the record straight and share our view that at this point the findings reported in this paper should not be relied on in academic or public discussions of these topics." The paper in question, titled "Artificial Intelligence, Scientific Discovery, and Product Innovation" and authored by Aidan Toner-Rodgers, investigated the effects of introducing an AI-driven materials discovery tool to 1,018 scientists in a U.S. R&D lab. The study reported that AI-assisted researchers discovered 44% more materials, filed 39% more patents, and achieved a 17% increase in product innovation. These gains were primarily attributed to AI automating 57% of idea-generation tasks, allowing top-performing scientists to focus on evaluating AI-generated suggestions effectively. However, the benefits were unevenly distributed; lower-performing scientists saw minimal improvements, and 82% of participants reported decreased job satisfaction due to reduced creativity and skill utilization.

The Wall Street Journal reported on MIT's statement.

OpenAI has launched Codex, a powerful AI coding agent in ChatGPT that autonomously handles tasks like writing features, fixing bugs, and testing code in a cloud-based environment. TechCrunch reports: Codex is powered by codex-1, a version of the company's o3 AI reasoning model optimized for software engineering tasks. OpenAI says codex-1 produces "cleaner" code than o3, adheres more precisely to instructions, and will iteratively run tests on its code until passing results are achieved.

The Codex agent runs in a sandboxed, virtual computer in the cloud. By connecting with GitHub, Codex's environment can come preloaded with your code repositories. OpenAI says the AI coding agent will take anywhere from one to 30 minutes to write simple features, fix bugs, answer questions about your codebase, and run tests, among other tasks. Codex can handle multiple software engineering tasks simultaneously, says OpenAI, and it doesn't limit users from accessing their computer and browser while it's running.

Codex is rolling out starting today to subscribers to ChatGPT Pro, Enterprise, and Team. OpenAI says users will have "generous access" to Codex to start, but in the coming weeks, the company will implement rate limits for the tool. Users will then have the option to purchase additional credits to use Codex, an OpenAI spokesperson tells TechCrunch. OpenAI plans to expand Codex access to ChatGPT Plus and Edu users soon.

An anonymous reader quotes a report from Ars Technica: Meta thinks there's no reason to carry on with its defense after the Federal Trade Commission closed its monopoly case, and the company has moved to end the trial early by claiming that the FTC utterly failed to prove its case. "The FTC has no proof that Meta has monopoly power," Meta's motion for judgment (PDF) filed Thursday said, "and therefore the court should rule in favor of Meta." According to Meta, the FTC failed to show evidence that "the overall quality of Meta's apps has declined" or that the company shows too many ads to users. Meta says that's "fatal" to the FTC's case that the company wielded monopoly power to pursue more ad revenue while degrading user experience over time (an Internet trend known as "enshittification"). And on top of allegedly showing no evidence of "ad load, privacy, integrity, and features" degradation on Meta apps, Meta argued there's no precedent for an antitrust claim rooted in this alleged harm.

"Meta knows of no case finding monopoly power based solely on a claimed degradation in product quality, and the FTC has cited none," Meta argued. Meta has maintained throughout the trial that its users actually like seeing ads. In the company's recent motion, Meta argued that the FTC provided no insights into what "the right number of ads" should be, "let alone" provide proof that "Meta showed more ads" than it would in a competitive market where users could easily switch services if ad load became overwhelming. Further, Meta argued that the FTC did not show evidence that users sharing friends-and-family content were shown more ads. Meta noted that it "does not profit by showing more ads to users who do not click on them," so it only shows more ads to users who click ads.

Meta also insisted that there's "nothing but speculation" showing that Instagram or WhatsApp would have been better off or grown into rivals had Meta not acquired them. The company claimed that without Meta's resources, Instagram may have died off. Meta noted that Instagram co-founder Kevin Systrom testified that his app was "pretty broken and duct-taped" together, making it "vulnerable to spam" before Meta bought it. Rather than enshittification, what Meta did to Instagram could be considered "a consumer-welfare bonanza," Meta argued, while dismissing "smoking gun" emails from Mark Zuckerberg discussing buying Instagram to bury it as "legally irrelevant." Dismissing these as "a few dated emails," Meta argued that "efforts to litigate Mr. Zuckerberg's state of mind before the acquisition in 2012 are pointless."

"What matters is what Meta did," Meta argued, which was pump Instagram with resources that allowed it "to 'thrive' -- adding many new features, attracting hundreds of millions and then billions of users, and monetizing with great success." In the case of WhatsApp, Meta argued that nobody thinks WhatsApp had any intention to pivot to social media when the founders testified that their goal was to never add social features, preferring to offer a simple, clean messaging app. And Meta disputed any claim that it feared Google might buy WhatsApp as the basis for creating a Facebook rival, arguing that "the sole Meta witness to (supposedly) learn of Google's acquisition efforts testified that he did not have that worry." In sum: A ruling in Meta's favor could prevent a breakup of its apps, while a denial would push the trial toward a possible order to divest Instagram and WhatsApp.

The Federal Communications Commission has approved Verizon's $9.6 billion acquisition of Frontier Communications, valuing the Dallas-based company at $20 billion including debt. The approval comes after Verizon agreed to scale back diversity initiatives to comply with Trump administration policies.

FCC Chairman Brendan Carr, who previously threatened to block mergers over DEI practices, praised the deal for its potential to "unleash billions in new infrastructure builds" and "accelerate the transition away from old, copper line networks to modern, high-speed ones." The acquisition positions America's largest phone carrier to expand its high-speed internet footprint across Frontier's 25-state network. Verizon plans to deploy fiber to more than one million U.S. homes annually following the transaction.

Charter Communications announced a $21.9 billion deal Friday to acquire Cox Communications, combining two major cable providers as they face mounting competition from wireless carriers offering 5G home internet. The transaction merges Charter's 31.4 million customers with Cox's 6.3 million, creating a larger entity to defend against aggressive expansion from Verizon and T-Mobile.

Charter lost 60,000 internet customers in the March quarter, underscoring the industry's vulnerability as traditional cable broadband growth stalls. Wireless carriers have successfully marketed their fixed wireless access services at lower price points while delivering competitive speeds, turning what was once cable's most profitable segment into contested territory. The combined company, which will be headquartered in Stamford, Connecticut, plans to adopt the Cox Communications name within a year of closing while retaining Spectrum as its consumer-facing brand.

Health authorities in densely-populated Hong Kong and Singapore have warned that Covid-19 cases are spiking, as a resurgent wave spreads through Asia. Bloomberg: The virus' activity in Hong Kong is now "quite high," Albert Au, head of the Communicable Disease Branch of the city's Center for Health Protection, told local media this week. The percentage of respiratory samples testing Covid-positive in Hong Kong recently reached its highest in a year.

Severe cases -- including deaths -- also reached its highest level in about a year to 31 in the week through May 3, the center's data shows. While the resurgence is yet to match the infection peaks seen in the past two years, rising viral load found in sewage water and Covid-related medical consultations and hospitalizations suggest the virus is actively spreading in the city of over 7 million people.

Rival financial hub Singapore is also on Covid alert. The city-state's health ministry released its first update on infection numbers in almost a year this month, as the estimated number of cases jumped 28% to 14,200 in the week through May 3 from the previous seven days while daily hospitalization rose around 30%. Singapore now only provides case updates when there is a noticeable spike.

Boys and young men in the United States are experiencing declining outcomes in education, mental health, and transition to adulthood compared to their female counterparts, according to comprehensive data analyzed by researchers. High school graduation rates for boys stand at 83% versus 89% for girls, while college enrollment of recent male high school graduates has barely increased to 57% from 54% in 1960, compared to women's surge to 66% from 38% in the same period.

Mental health indicators show 28% of boys ages 3-17 have mental, emotional, behavioral or developmental problems versus 23% of girls. Male suicide rates for ages 15-24 have nearly doubled to 21 per 100,000 in 2023 from 11 in 1968. Labor force participation among men ages 25-54 has declined to 89% from 94% in 1975, while women's participation rose to 78% from 55%. Additionally, 19% of men ages 25-34 now live with parents, compared to 13% of women. "The contemporary American economy is not rewarding a lot of the characteristics associated with men and masculinity," said Robb Willer, professor of sociology at Stanford.

Apple and Epic Games sparred over whether the iPhone maker was obstructing access to the hit game Fortnite, the latest tussle in a long-running feud over Apple's control of game distribution revenue. From a report: The game developer said that Apple "blocked" its latest Fortnite app submission so that it can't be released in the US or on the third-party Epic Games Store in the EU.

"Now, sadly, Fortnite on iOS will be offline worldwide until Apple unblocks it," the company wrote on its X account. An Apple spokesperson responded later on Friday, saying that the company "did not take any action to remove the live version of Fortnite from alternative distribution marketplaces" in the EU. Apple said that it asked the game company's European division, Epic Sweden, to "resubmit the app update without including the US storefront of the App Store so as not to impact Fortnite in other geographies."