ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

Pebble Founder Warns of Limited iPhone Compatibility for Revived Smartwatch (ericmigi.com)

(Friday March 21, 2025 @06:30AM (msmash) from the deja-vu dept.)

Pebble founder Eric Migicovsky has warned that the company's [1]revived smartwatch line will face significant functionality limitations when paired with iPhones, blaming Apple's restrictive policies that favor its own Apple Watch. "It's impossible for a 3rd party smartwatch to send text messages, or perform actions on notifications (like dismissing, muting, replying) and many, many other things," Migicovsky [2]wrote in a blog post , adding that the situation has "actually gotten worse over the last 8 years."

A 2024 class action lawsuit cited in the post claims Apple has added further restrictions since iOS 13, including requiring users to display full content previews on their lock screens for notifications to reach third-party watches. Pebble is still developing an iOS app because 40% of potential customers use iPhones, he said. Migicovsky warned that the watch will "always appear to have less developed functionality on iOS than Android" and some features will arrive on Android first.



[1] https://tech.slashdot.org/story/25/03/18/1621244/the-first-new-pebble-smartwatches-are-coming-later-this-year

[2] https://ericmigi.com/blog/apple-restricts-pebble-from-being-awesome-with-iphones



'There Are Two Kinds of Credit Cards' (theatlantic.com)

(Friday March 21, 2025 @06:30AM (msmash) from the closer-look dept.)

The credit-card market has quietly split in two, Atlantic [1]argues in a new story : one offering generous benefits to wealthy Americans, the other offering expensive debt to the poor. Credit-card balances have reached an all-time high of $1.2 trillion, with serious delinquency rates climbing to their highest point since the Great Recession.

"Transactors" pay off balances monthly and earn valuable rewards worth up to $3,000 annually in taxable income equivalent, while "revolvers" carry balances at a brutal 21.5% average APR. The poor subsidize the rich through two mechanisms: swipe fees that drive up retail prices by $1,700 annually for the average family, and late fees and interest charges that finance rewards programs. Interest revenue for credit-card companies has ballooned from $76 billion in 2020 to $170 billion in 2024.

The economy now appears to be slowing down. High-income families are increasingly resembling working-class families in credit data, with three in five households earning over $80,000 annually carrying balances for more than a year. Card companies are now offering fewer cards to subprime borrowers, creating a troubling dilemma - while expensive credit cards are harmful, having no credit access might be worse. Bipartisan legislation now aims to cap interest rates and lower swipe fees.



[1] https://www.yahoo.com/news/two-kinds-credit-cards-113000521.html



Microsoft Developing Windows 11 Feature To Explain Hardware Performance Issues (bsky.app)

(Friday March 21, 2025 @12:04AM (msmash) from the up-next dept.)

Microsoft is developing a new Windows 11 feature that will [1]explain how hardware limitations affect PC performance . The latest preview builds include a hidden FAQ section in system settings that addresses GPU memory, system RAM, and OS version impacts.

The feature, discovered by Windows observer "phantomofearth" in this week's Dev Channel build, requires manual activation. It provides specific recommendations for configurations like low RAM or GPUs with less than 4GB memory, and flags outdated Windows versions.



[1] https://bsky.app/profile/did:plc:lld3hsasiketetu767uagr6m/post/3lkmdy5p35s2g



Government Releases Thousands of Declassified Pages Related To JFK Assassination (go.com)

(Friday March 21, 2025 @12:04AM (msmash) from the for-the-record dept.)

The National Archives has released [1]thousands of pages of declassified records related to the assassination of President John F. Kennedy in 1963. From a report:

> The records were [2]posted to the National Archives' website , joining recently released records posted in 2023, 2022, 2021 and 2017-2018.

>

> "This release consists of approximately 80,000 pages of previously-classified records that will be published with no redactions," said the announcement from the Office of the Director of National Intelligence. "Additional documents withheld under court seal or for grand jury secrecy, and records subject to section 6103 of the Internal Revenue Code, must be unsealed before release."

>

> President Donald Trump signed an executive order on Jan. 23 directing the release of all remaining records related to the assassination, saying it was in the "public interest" to do so. Tuesday's initial release contained 1,123 records comprising 32,000 pages. A subsequent release on Tuesday night contained 1,059 records comprising 31,400 additional pages.



[1] https://abcnews.go.com/US/government-releases-thousands-declassified-records-related-jfk-assassination/story?id=119926288

[2] https://www.archives.gov/research/jfk/release-2025



Nvidia Not Approached for Intel Stake, CEO Says (reuters.com)

(Thursday March 20, 2025 @06:00PM (msmash) from the shape-of-things-to-come dept.)

Nvidia has [1]not been approached about acquiring a stake in Intel, CEO Jensen Huang said on Wednesday, addressing speculation about potential semiconductor industry consolidation.

"Nobody's invited us to a consortium," Huang told reporters at Nvidia's annual developer conference. "Nobody invited me. Maybe other people are involved, but I don't know. There might be a party. I wasn't invited."

Reuters previously reported that Taiwan Semiconductor Manufacturing Co (TSMC) had approached Nvidia, Broadcom and Advanced Micro Devices about joining a potential joint venture to operate Intel's factories. Other media outlets reported Intel was considering separating its manufacturing operations with U.S. President Donald Trump's support, potentially transferring control to a TSMC-led consortium.



[1] https://www.reuters.com/technology/nvidia-ceo-says-orders-36-million-blackwell-gpus-exclude-meta-2025-03-19/



GNOME 48 Released (9to5linux.com)

(Thursday March 20, 2025 @06:00PM (msmash) from the moving-forward dept.)

[1]prisoninmate writes:

> GNOME 48 desktop environment has been released after six months of development with major new features that have been expected for more than four years, such as dynamic triple buffering, HDR support, and much more. 9to5Linux reports:

>

> "Highlights of GNOME 48 include dynamic triple buffering to boost the performance on low-end GPUs, such as Intel integrated graphics or Raspberry Pi computers, Wayland color management protocol support, new Adwaita fonts, HDR (High Dynamic Range) support, and a new Wellbeing feature with screen time tracking.

>

> "GNOME 48 also introduces a new GNOME Display Control (gdctl) utility to view the active monitor configuration and set new monitor configuration using command line arguments, implements a11y keyboard monitoring support, adds output luminance settings, and it now centers new windows by default."



[1] https://slashdot.org/~prisoninmate



OpenAI's o1-pro is the Company's Most Expensive AI Model Yet (techcrunch.com)

(Thursday March 20, 2025 @06:00PM (msmash) from the moving-forward dept.)

OpenAI has [1]launched a more powerful version of its o1 "reasoning" AI model, o1-pro, in its developer API. From a report:

> According to OpenAI, o1-pro uses more computing than o1 to provide "consistently better responses." Currently, it's only available to select developers -- those who've spent at least $5 on OpenAI API services -- and it's pricey. Very pricey. OpenAI is charging $150 per million tokens (~750,000 words) fed into the model and $600 per million tokens generated by the model. That's twice the price of OpenAI's GPT-4.5 for input and 10x the price of regular.



[1] https://techcrunch.com/2025/03/19/openais-o1-pro-is-its-most-expensive-model-yet/



LG Ceases XR Product Efforts (uploadvr.com)

(Thursday March 20, 2025 @12:07PM (msmash) from the end-of-road dept.)

An anonymous reader shares a report:

> LG has [1]ceased its XR product commercialization efforts, it confirmed, though will still continue long-term R&D.

>

> The news of LG ending its XR product plans was first reported by South Korean news outlet The Bell, citing an industry source. In a statement given to the outlet, LG confirmed the claim but clarified that it will still continue long-term XR research and development.

>

> According to The Bell, LG took the decision because it believes the XR market isn't growing as quickly as it expected, and it wants to focus more on heating, ventilation, air conditioning (HVAC) and robotics.



[1] https://www.uploadvr.com/lg-ceases-xr-product-efforts-will-still-continue-r-d/



PCI Express 7.0's Blazing Speeds Are Nearly Here, But PCIe 6 is Still Vapor (pcworld.com)

(Thursday March 20, 2025 @12:07PM (msmash) from the 7-is-better-than-6 dept.)

An anonymous reader shares a report:

> PCI Express 7 is nearing completion, the PCI Special Interest Group said, and the final specification should be released later this year. PCI Express 7, the backbone of the modern motherboard, [1]is at the stage 0.9 , which the PCI-SIG characterizes as the "final draft" of the specification. The technology was at version 0.5 a year ago, almost to the day, and originally authored in 2022.

>

> The situation remains the same, however. While modern PC motherboards are stuck on PCI Express 5.0, the specification itself moves ahead. PCI Express has doubled the data rate about every three years, from 64 gigtransfers per second in PCI Express 6.0 to the upcoming 128 gigatransfers per second in PCIe 7. (Again, it's worth noting that PCIe 6.0 exists solely on paper.) Put another way, PCIe 7 will deliver 512GB/s in both directions, across a x16 connection.

>

> It's worth noting that the PCI-SIG doesn't see PCI Express 7 living inside the PC market, at least not initially. Instead, PCIe 7 is expected to be targeted at cloud computing, 800-gigabit Ethernet and, of course, artificial intelligence. It will be backwards-compatible with the previous iterations of PCI Express, the SIG said.



[1] https://www.pcworld.com/article/2643020/pci-express-7-0-is-nearly-here-on-paper-but-pcie-6-is-still-vapor.html



Plex Raises Premium Subscription Prices for First Time in Decade (www.plex.tv)

(Thursday March 20, 2025 @12:07PM (msmash) from the how-about-that dept.)

Streaming service provider Plex announced Wednesday its [1]first price increase in a decade for its premium Plex Pass subscription, raising monthly rates to $6.99 from $4.99, yearly subscriptions to $69.99 from $39.99, and lifetime access to $249.99 from $119.99, effective April 29. The company is also making remote playback of personal media a paid feature, introducing a Remote Watch Pass subscription at $1.99 monthly or $19.99 annually for users who don't need full Plex Pass features, and removing its one-time mobile activation fee.

The price increase applies to new and existing subscriptions, with the exception of existing Lifetime Plex Pass holders, the company said.



[1] https://www.plex.tv/blog/important-2025-plex-updates/



EU Orders Apple To Open Ecosystem To Rivals (reuters.com)

(Thursday March 20, 2025 @12:07PM (msmash) from the escalating-matters dept.)

EU antitrust regulators ordered Apple on Wednesday to [1]open its closed ecosystem to competitors , detailing how the company must comply with the bloc's Digital Markets Act or face potential fines. The European Commission's decision comes six months after initiating proceedings against the tech giant.

The first order requires Apple to grant rival smartphone, headphone and VR headset manufacturers access to its technology for seamless connectivity with Apple devices. A second order establishes specific processes for responding to app developers' interoperability requests. Apple criticized the decision, saying: "Today's decisions wrap us in red tape, slowing down Apple's ability to innovate for users in Europe." EU antitrust chief Teresa Ribera countered: "We are simply implementing the law." Non-compliance could trigger investigations resulting in fines up to 10% of Apple's global annual sales.



[1] https://www.reuters.com/technology/apple-ordered-by-eu-antitrust-regulators-open-up-rivals-2025-03-19/



AI Crawlers Haven't Learned To Play Nice With Websites (theregister.com)

(Thursday March 20, 2025 @12:07PM (msmash) from the robot.txt-be-damned dept.)

SourceHut, an open-source-friendly git-hosting service, says web crawlers for AI companies are [1]slowing down services through their excessive demands for data. From a report:

> "SourceHut continues to face disruptions due to aggressive LLM crawlers," the biz reported Monday on its status page. "We are continuously working to deploy mitigations. We have deployed a number of mitigations which are keeping the problem contained for now. However, some of our mitigations may impact end-users."

>

> SourceHut said it had deployed Nepenthes, a tar pit to catch web crawlers that scrape data primarily for training large language models, and noted that doing so might degrade access to some web pages for users. "We have unilaterally blocked several cloud providers, including GCP [Google Cloud] and [Microsoft] Azure, for the high volumes of bot traffic originating from their networks," the biz said, advising administrators of services that integrate with SourceHut to get in touch to arrange an exception to the blocking.



[1] https://www.theregister.com/2025/03/18/ai_crawlers_sourcehut/



More Than 150 'Unprecedented' Climate Disasters Struck World in 2024, Says UN (theguardian.com)

(Thursday March 20, 2025 @12:07PM (msmash) from the state-of-affairs dept.)

The devastating impacts of the climate crisis reached new heights in 2024, with [1]scores of unprecedented heatwaves, floods and storms across the globe, according to the UN's World Meteorological Organization. From a report:

> The WMO's report on 2024, the [2]hottest year on record , sets out a trail of destruction from extreme weather that took lives, demolished buildings and ravaged vital crops. More than 800,000 people were displaced and made homeless, the highest yearly number since records began in 2008.

>

> The report lists 151 unprecedented extreme weather events in 2024, meaning they were worse than any ever recorded in the region. Heatwaves in Japan left hundreds of thousands of people struck down by heatstroke. Soaring temperatures during heatwaves peaked at 49.9C at Carnarvon in Western Australia, 49.7C in the city of Tabas in Iran, and 48.5C in a nationwide heatwave in Mali.

>

> Record rains in Italy led to floods, landslides and electricity blackouts; torrents destroyed thousands of homes in Senegal; and flash floods in Pakistan and Brazil caused major crop losses.

>

> Storms were also supercharged by global heating in 2024, with an unprecedented six typhoons in under a month hitting the Philippines. Hurricane Helene was the strongest ever recorded to strike the Big Bend region of Florida in the US, while Vietnam was hit by Super Typhoon Yagi, affecting 3.6 million people. Many more unprecedented events will have passed unrecorded.



[1] https://www.theguardian.com/environment/2025/mar/19/unprecedented-climate-disasters-extreme-weather-un-report

[2] https://news.slashdot.org/story/24/11/11/1450240/2024-on-track-to-be-hottest-year-on-record-as-warming-temporarily-hits-15c



FedEx Data Scraping and Telecom Insider Bribes Powered Nationwide iPhone Theft Operation (wsj.com)

(Thursday March 20, 2025 @04:05AM (msmash) from the how-about-that dept.)

Federal authorities have broken up an international crime ring that [1]stole thousands of iPhones from porches nationwide [ [2]non-paywalled link ] , arresting 13 people last month after a sophisticated operation that combined high-tech tools with old-fashioned bribery.

The thieves created software to scrape FedEx tracking numbers and paid AT&T store employees to provide customer order details and delivery addresses, according to WSJ, which cites prosecutors. Armed with this information, runners intercepted packages at doorsteps moments after delivery.

Demetrio Reyes Martinez, known online as "CookieNerd," developed code that circumvented FedEx limits on delivery-data requests, while AT&T employee Alejandro Then Castillo used his credentials to track hundreds of shipments and reportedly received up to $2,500 for recruiting other employees. Stolen devices were funneled through Wyckoff Wireless in Brooklyn, a store owned by Joel Suriel, who was already on supervised release from a previous wire-fraud conviction. The merchandise was then shipped overseas for sale and activation.



[1] https://www.wsj.com/us-news/how-bribes-helped-a-crime-ring-steal-thousands-of-iphones-from-porches-8d9f02f1

[2] https://www.msn.com/en-us/general/general/how-bribes-helped-a-crime-ring-steal-thousands-of-iphones-from-porches/ar-AA1B9QK7



Microsoft Quantum Computing Claim Still Lacks Evidence

(Thursday March 20, 2025 @04:05AM (msmash) from the questions-remain dept.)

Nature:

> A Microsoft researcher [this week] [1]presented results behind the company's controversial claim last month to have [2]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 :

[3]Scientists Question Microsoft's Quantum Computing Claims ;

[4]Microsoft Quantum Computing 'Breakthrough' Faces Fresh Challenge



[1] https://www.nature.com/articles/d41586-025-00829-2

[2] https://tech.slashdot.org/story/25/02/19/1651235/microsoft-reveals-its-first-quantum-computing-chip-the-majorana-1

[3] https://science.slashdot.org/story/25/02/22/0232239/scientists-question-microsofts-quantum-computing-claims

[4] https://slashdot.org/story/25/03/07/1350230/microsoft-quantum-computing-breakthrough-faces-fresh-challenge



Sony Unveils RGB LED Backlight Tech That Outperforms Traditional Mini LED (theverge.com)

(Thursday March 20, 2025 @04:05AM (msmash) from the moving-forward dept.)

Sony has developed a new TV display technology combining individual red, green, and blue LEDs for backlighting, potentially [1]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.



[1] https://www.theverge.com/news/628977/sony-rgb-led-backlight-announced-color-mini-led-tvs



Five Charged In European Parliament Huawei Bribery Probe (yahoo.com)

(Thursday March 20, 2025 @04:05AM (BeauHD) from the 5G-or-5-grand dept.)

An anonymous reader quotes a report from Reuters:

> The Belgian prosecutor's office said on Tuesday that it has [1]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.



[1] https://www.yahoo.com/news/five-charged-european-parliament-huawei-185546555.html



Nvidia Says 'the Age of Generalist Robotics Is Here' (theverge.com)

(Wednesday March 19, 2025 @11:30PM (BeauHD) from the new-era dept.)

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 [1]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 [2]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 [3]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 [4]Hugging Face and [5]GitHub .



[1] https://www.theverge.com/news/631743/nvidia-issac-groot-n1-robotics-foundation-model-available

[2] https://www.1x.tech/neo

[3] https://nvidianews.nvidia.com/news/foundation-model-isaac-robotics-platform

[4] https://huggingface.co/nvidia/Isaac-GR00T-N1-2B

[5] https://github.com/NVIDIA/Isaac-GR00T



Starliner Astronauts Return To Earth After More Than 9 Months In Space (cnn.com)

(Wednesday March 19, 2025 @12:00PM (BeauHD) from the welcome-home dept.)

NASA's SpaceX Crew-9 has [1]returned to Earth safely after a stay of [2]more than nine months aboard the International Space Station. The crew remained in space longer than expected due to issues with Boeing's Starliner capsule, which was originally scheduled to bring them home sooner.

While the mission has been [3]politically fraught , the astronauts said in a [4]rare space-to-earth interview last month that they were neither stranded nor abandoned. "That's been the rhetoric. That's been the narrative from day one: stranded, abandoned, stuck -- and I get it. We both get it," [NASA astronaut Butch] Wilmore said. "But that is, again, not what our human spaceflight program is about. We don't feel abandoned, we don't feel stuck, we don't feel stranded." Wilmore added a request: "If you'll help us change the rhetoric, help us change the narrative. Let's change it to 'prepared and committed.' That's what we prefer..." CNN has more details on the arrival:

> Williams and Wilmore, alongside NASA's Nick Hague and cosmonaut Aleksandr Gorbunov of Russia's Roscosmos space agency, safely splashed down off the coast of Tallahassee, Florida at 5:57 p.m. ET. The crew's highly anticipated return came after the crew climbed aboard a SpaceX Crew Dragon capsule and departed the International Space Station at 1:05 a.m. ET. Williams, Wilmore, Hague and Gorbunov spent Tuesday morning and afternoon in orbit in the roughly 13-foot-wide (4-meter-wide), gumdrop-shaped SpaceX Crew Dragon spacecraft. Gradually descending, the capsule carried the astronauts from the space station, which orbits about 250 miles (400 kilometers) above Earth, toward the thick inner layer of our planet's atmosphere.

>

> Around 5 p.m. ET, the Crew Dragon capsule began firing its engines to begin the final phase of the journey: reentry. This leg of the journey is considered the most dangerous of any flight home from space. The jarring physics of hitting the atmosphere while traveling more than 22 times the speed of sound routinely heats the exterior of returning spacecraft to more than 3,500 degrees Fahrenheit (1,926 degrees Celsius) and can trigger a communication blackout. After plunging toward home, the Crew Dragon spacecraft deployed two sets of parachutes in quick succession to further slow its descent. The capsule decelerated from orbital speeds of more than 17,000 miles per hour (27,359 kilometers per hour) to less than 20 miles per hour (32 kilometers per hour) as the vehicle hit the ocean.

>

> After the vehicle hit the ocean, a SpaceX rescue ship waiting nearby worked to haul the spacecraft out of the water. Williams and Wilmore and their crewmates will soon exit Dragon and take their first breaths of earthly air in nine months. Medical teams will evaluate the crew's health, as is routine after astronauts return from space, before deciding next steps. Ultimately, the NASA crew members will return to their home base at Johnson Space Center in Houston.

You can watch a recording of the re-entry and splashdown [5]here .



[1] https://www.cnn.com/2025/03/18/science/spacex-crew-9-astronauts-space/index.html

[2] https://science.slashdot.org/story/25/03/15/0033233/spacex-launches-nasas-crew-10-mission-to-iss

[3] https://www.factcheck.org/2025/03/the-facts-behind-the-delayed-return-of-u-s-astronauts/

[4] https://science.slashdot.org/story/25/02/15/033223/iss-astronauts-give-space-to-earth-interview-weeks-before-finally-returning-to-earth

[5] https://www.youtube.com/watch?v=IDYt1l_7UvU



Researchers Engineer Bacteria To Produce Plastics (arstechnica.com)

(Wednesday March 19, 2025 @11:30PM (BeauHD) from the bio-based-manufacturing dept.)

An anonymous reader quotes a report from Ars Technica:

> [A] team of Korean researchers [describe] how they've engineered a bacterial strain that [1]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 [2]published in the journal Nature Chemical Biology .



[1] https://arstechnica.com/science/2025/03/researchers-engineer-bacteria-to-produce-plastics/

[2] http://dx.doi.org/10.1038/s41589-025-01842-2



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T: One big monster, he called TROLL.
He don't rock, and he don't roll;
Drink no wine, and smoke no stogies.
He just Love To Eat Them Roguies.
-- The Roguelet's ABC