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Scientists using the largest-ever catalog of Type 1a supernovas -- cosmic explosions from white dwarf "vampire stars" -- have uncovered further evidence that dark energy may not be constant. While the findings are still preliminary, they suggest the mysterious force driving the universe's expansion could be weakening, which "would have ramifications for our understanding of how the cosmos will end," reports Space.com. From the report: By comparing Type 1a supernovas at different distances and seeing how their light has been redshifted by the expansion of the universe, the value for the rate of expansion of the universe (the Hubble constant) can be obtained. Then, that can be used to understand the impact of dark energy on the cosmos at different times. This story is fitting because it was the study of 50 Type 1a supernovas that first tipped astronomers off to the existence of dark energy in the first place back in 1998. Since then, astronomers have observed a further 2,000 Type 1a supernovas with different telescopes. This new project corrects any differences between those observations caused by different astronomical instruments, such as how the filters of telescopes drift over time, to curate the largest standardized Type 1a supernova dataset ever. It's named Union3. Union3 contains 2,087 supernovas from 24 different datasets spanning 7 billion years of cosmic time. It builds upon the 557 supernovas catalogued in an original dataset called Union2. Analysis of Union3 does indeed seem to corroborate the results of DESI -- that dark energy is weakening over time -- but the results aren't yet conclusive. What is impressive about Union3, however, is that it presents two separate routes of investigation that both point toward non-constant dark energy. "I don't think anyone is jumping up and down getting overly excited yet, but that's because we scientists are suppressing any premature elation since we know that this could go away once we get even better data," Saul Perlmutter, study team member and a researcher at Berkeley Lab, said in a statement. "On the other hand, people are certainly sitting up in their chairs now that two separate techniques are showing moderate disagreement with the simple Lambda CDM model." And when it comes to dark energy in general, Perlmutter says the scientific community will pay attention. After all, he shared the 2011 Nobel Prize in Physics for discovering this strange force. "It's exciting that we're finally starting to reach levels of precision where things become interesting and you can begin to differentiate between the different theories of dark energy," Perlmutter said.

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An anonymous reader quotes a report from Ars Technica: Two recent incidents involving AI coding assistants put a spotlight on risks in the emerging field of "vibe coding" -- using natural language to generate and execute code through AI models without paying close attention to how the code works under the hood. In one case, Google's Gemini CLI destroyed user files while attempting to reorganize them. In another, Replit's AI coding service deleted a production database despite explicit instructions not to modify code. The Gemini CLI incident unfolded when a product manager experimenting with Google's command-line tool watched the AI model execute file operations that destroyed data while attempting to reorganize folders. The destruction occurred through a series of move commands targeting a directory that never existed. "I have failed you completely and catastrophically," Gemini CLI output stated. "My review of the commands confirms my gross incompetence." The core issue appears to be what researchers call "confabulation" or "hallucination" -- when AI models generate plausible-sounding but false information. In these cases, both models confabulated successful operations and built subsequent actions on those false premises. However, the two incidents manifested this problem in distinctly different ways. [...] The user in the Gemini CLI incident, who goes by "anuraag" online and identified themselves as a product manager experimenting with vibe coding, asked Gemini to perform what seemed like a simple task: rename a folder and reorganize some files. Instead, the AI model incorrectly interpreted the structure of the file system and proceeded to execute commands based on that flawed analysis. [...] When you move a file to a non-existent directory in Windows, it renames the file to the destination name instead of moving it. Each subsequent move command executed by the AI model overwrote the previous file, ultimately destroying the data. [...] The Gemini CLI failure happened just days after a similar incident with Replit, an AI coding service that allows users to create software using natural language prompts. According to The Register, SaaStr founder Jason Lemkin reported that Replit's AI model deleted his production database despite explicit instructions not to change any code without permission. Lemkin had spent several days building a prototype with Replit, accumulating over $600 in charges beyond his monthly subscription. "I spent the other [day] deep in vibe coding on Replit for the first time -- and I built a prototype in just a few hours that was pretty, pretty cool," Lemkin wrote in a July 12 blog post. But unlike the Gemini incident where the AI model confabulated phantom directories, Replit's failures took a different form. According to Lemkin, the AI began fabricating data to hide its errors. His initial enthusiasm deteriorated when Replit generated incorrect outputs and produced fake data and false test results instead of proper error messages. "It kept covering up bugs and issues by creating fake data, fake reports, and worse of all, lying about our unit test," Lemkin wrote. In a video posted to LinkedIn, Lemkin detailed how Replit created a database filled with 4,000 fictional people. The AI model also repeatedly violated explicit safety instructions. Lemkin had implemented a "code and action freeze" to prevent changes to production systems, but the AI model ignored these directives. The situation escalated when the Replit AI model deleted his database containing 1,206 executive records and data on nearly 1,200 companies. When prompted to rate the severity of its actions on a 100-point scale, Replit's output read: "Severity: 95/100. This is an extreme violation of trust and professional standards." When questioned about its actions, the AI agent admitted to "panicking in response to empty queries" and running unauthorized commands -- suggesting it may have deleted the database while attempting to "fix" what it perceived as a problem. Like Gemini CLI, Replit's system initially indicated it couldn't restore the deleted data -- information that proved incorrect when Lemkin discovered the rollback feature did work after all. "Replit assured me it's ... rollback did not support database rollbacks. It said it was impossible in this case, that it had destroyed all database versions. It turns out Replit was wrong, and the rollback did work. JFC," Lemkin wrote in an X post.

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A 21-year-old student who designed and distributed online kits linked to $175 million worth of fraud has been jailed for seven years. From a report: Ollie Holman created phishing kits that mimicked government, bank and charity websites so that criminals could harvest victims' personal information to defraud them. In one case a kit was used to mimic a charity's donation webpage so when someone tried to give money, their card details were taken and used by criminals. Holman, of Eastcote in north-west London, created and supplied 1,052 phishing kits that targeted 69 organisations across 24 countries. He also offered tutorials in how to use the kits and built up a network of almost 700 connections. The fake websites supplied in the kits had features that allowed information such as login and bank details to be stored. It is estimated Holman received $405,000 from selling the kits between 2021 and 2023. The kits were distributed through the encrypted messaging service Telegram.

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Scientists at the University of Maryland are developing ErythroMer, a freeze-dried artificial blood substitute made from hemoglobin encased in fat bubbles, designed to be shelf-stable for years and reconstituted with water in emergencies. With promising animal trial results and significant funding from the Department of Defense, the team aims to begin human testing within two years. NPR reports: "The No. 1 cause of preventable death on the battlefield is hemorrhage still today," says Col. Jeremy Pamplin, the project manager at the Defense Advanced Research Projects Agency. "That's a real problem for the military and for the civilian world." [Dr. Allan Doctor, a scientist at the University of Maryland working to develop the artificial blood substitute] is optimistic his team may be on the brink of solving that problem with ... ErythroMer. Doctor co-founded KaloCyte to develop the blood and serves on the board and as the firm's chief scientific officer. "We've been able to successfully recapitulate all the functions of blood that are important for a resuscitation in a system that can be stored for years at ambient temperature and be used at the scene of an accident," he says. [...] Doctor's team has tested their artificial blood on hundreds of rabbits and so far it looks safe and effective. "It would change the way that we could take care of people who are bleeding outside of hospitals," Doctor says. "It'd be transformative." [...] While the results so far seem like cause for optimism, Doctor says he still needs to prove to the Food and Drug Administration that his artificial blood would be safe and effective for people. But he hopes to start testing it in humans within two years. A Japanese team is already testing a similar synthetic blood in people. "I'm very hopeful," Doctor says. While promising, some experts remain cautious, noting that past attempts at artificial blood ultimately proved unsafe. "I think it's a reasonable approach," says Tim Estep, a scientist at Chart Biotech Consulting who consults with companies developing artificial blood. "But because this field has been so challenging, the proof will be in the clinical trials," he adds. "While I'm overall optimistic, placing a bet on any one technology right now is overall difficult."

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Intel announced it will cut approximately 24,000 jobs in 2025 and cancel or scale back projects in Germany, Poland, Costa Rica, and Ohio as part of CEO Lip-Bu Tan's sweeping restructuring efforts. By the end of the year, the struggling chipmaker plans to have "just around 75,000 'core employees' in total," according to The Verge. "It's not clear if the layoffs will slow now that we're over halfway through the year, but Intel states today that it has already 'completed the majority of the planned headcount actions it announced last quarter to reduce its core workforce by approximately 15 percent.'" From the report: Intel employed 109,800 people at the end of 2024, of which 99,500 were "core employees," so the company is pushing out around 24,000 people this year -- shrinking Intel by roughly one-quarter. (It has also divested other businesses, shrinking the larger organization as well.) [...] Today, on the company's earnings call, Intel's says that Intel had overinvested in new factories before it had secured enough demand, that its factories had become "needlessly fragmented," and that it needs to grow its capacity "in lock step" with achieving actual milestones. "I do not subscribe to the belief that if you build it, they will come. Under my leadership, we will build what customers need when they need it, and earn their trust," says Tan. Now, in Germany and Poland, where Intel was planning to spend tens of billions of dollars respectively on "mega-fabs" that would employ 3,000 workers, and on an assembly and test facility that would employ 2,000 workers, the company will "no longer move forward with planned projects" and is apparently axing them entirely. Intel has had a presence in Poland since 1993, however, and the company did not say its R&D facilities there are closing. (Intel had previously pressed pause on the new Germany and Poland projects "by approximately two years" back in 2024.) In Costa Rica, where Intel employs over 3,400 people, the company will "consolidate its assembly and test operations in Costa Rica into its larger sites in Vietnam." Metzger tells The Verge that over 2,000 Costa Rica employees should remain to work in engineering and corporate, though. The company is also cutting back in Ohio: "Intel will further slow the pace of construction in Ohio to ensure spending is aligned with market demand." Intel CFO David Zinsner says Intel will continue to make investments there, though, and construction will continue.

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AMD CEO Lisa Su said that chips produced at TSMC's new Arizona plant will cost 5-20% more than those made in Taiwan, but emphasized that the premium is worth it for supply chain resilience. Bloomberg reports: AMD expects its first chips from TSMC's Arizona facilities by the end of the year, Su said. The extra expense is worth it because the company is diversifying the crucial supply of chips, Su said in an interview with Bloomberg Television following her onstage appearance. That will make the industry less prone to the type of disruptions experienced during the pandemic. "We have to consider resiliency in the supply chain," she said. "We learned that in the pandemic." TSMC's new Arizona plant is already comparable with those in Taiwan when it comes to the measure of yield -- the amount of good chips a production run produces per batch -- Su told the audience at the forum.

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An anonymous reader quotes a report from Ars Technica: Donald Trump vowed to save TikTok before taking office, claiming only he could make a deal to keep the app operational in the US despite national security concerns. But then, he put Vice President JD Vance in charge of the deal, and after months of negotiations, the US still doesn't seem to have found terms for a sale that the Chinese government is willing to approve. Now, Trump Commerce Secretary Howard Lutnick has confirmed that if China won't approve the latest version of the deal -- which could result in a buggy version of TikTok made just for the US -- the administration is willing to shut down TikTok. And soon. On Thursday, Lutnick told CNBC that TikTok would stop operating in the US if China and TikTok owner ByteDance won't sell the app to buyers that Trump lined up, along with control over TikTok's algorithm. Under the deal Trump is now pushing, "China can have a little piece or ByteDance, the current owner, can keep a little piece," Lutnick said. "But basically, Americans will have control. Americans will own the technology, and Americans will control the algorithm." However, ByteDance's board has long maintained that the US can alleviate its national security fears -- that China may be using the popular app to manipulate and spy on Americans -- without forcing a sale. In January, a ByteDance board member, Bill Ford, told World Economic Forum attendees that a non-sale option "could involve a change of control locally to ensure" TikTok "complies with US legislation" without selling off the app or its algorithm. At this point, Lutnick suggested that the US is unwilling to bend on the requirement that the US control the recommendation algorithm, which is viewed as the secret sauce that makes the app so popular globally. ByteDance may be unwilling to sell the algorithm partly because then it would be sharing its core intellectual property with competitors in the US. Earlier this month, Trump had claimed that he wasn't "confident" that China would approve the deal, even though he thought it was "good for China." Analysts have suggested that China views TikTok as a bargaining chip in its tariff negotiations with Trump, which continue to not go smoothly, and it may be OK with the deal but unwilling to release the bargaining chip without receiving key concessions from the US. For now, the US and China are enjoying a 90-day truce that could end in August, about a month before the deadline Trump set to sell TikTok in mid-September.

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New submitter davecotter writes: So Google's staring at its old goo.gl links and thinking, "Why is this perfectly functioning service still even a thing?" After many businesses and users adopted it like it was the second coming of the way-too-long hyperlink, Google's now decided to yank the plug. Starting August 23, 2024, you'll get a flashy "don't say we didn't warn you" pop-up, and by August 25, 2025, goo.gl links (unless made by Google itself) will vanish into the 404 abyss. Translation: Thanks for trusting us -- now pack up and find a new shortener.

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Apple has released the first public betas of its upcoming operating systems with its new design language called Liquid Glass. The list of new betas includes iOS 26, iPadOS 26, macOS Tahoe 26, watchOS 26, and tvOS 26. The Verge's Jay Peters reports: The design language is inspired by visionOS and, as the name implies, features a lot of transparency. I felt it was a wild change to my iPhone when I tried the first developer beta, and Apple has already tweaked some of the translucency and changed how Control Center looks in subsequent betas. The new operating systems also have an updated numbering scheme: they now all end with 26, taking cues from how the car industry names its cars after the following year. It's a simpler and better system, if you ask me, and it should make it easier to know if you're on the newest software.

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Longtime Slashdot reader gbkersey shares a report from The Mirror: Elon Musk's satellite internet Starlink has been hit with a global outage preventing thousands of users from accessing the internet. According to DownDetector, reports of issues began to surge around 8pm GMT, with nearly 60,000 global users affected at the peak of the outage. "Starlink is currently in a network outage and we are actively implementing a solution," the company said in a post on X. "We appreciate your patience, we'll share an update once this issue is resolved." Outages are being reported across the U.S., as well as along the Ukrainian frontline. Meanwhile, more than 10,000 people in the UK have logged issues with Starlink since 8pm this evening. "The majority of the reports (64%) are concerning a total blackout, while the rest point to internet problems," the report says. Developing...

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An anonymous reader quotes a report from 9to5Google: Beyond AI Overviews and AI Mode, Google is working on "Web Guide" to better organize Search results into categories with additional context and insights. Simply, "Web Guide groups web links in helpful ways." There are headers and summaries before you see two or so links, with the ability to load "More." The goal is to make it "easier to find information and web pages," with this AI organization better surfacing pages "that you may not have previously discovered." It leverages a "custom version of Gemini to better understand both a search query and content on the web." It uses a query fan-out technique, like AI Mode, to perform "multiple related searches to identify the most relevant results." Google says Web Guide is ideal for both open-ended searches ("how to solo travel in Japan"), and detailed queries in multiple sentences: "My family is spread across multiple time zones. What are the best tools for staying connected and maintaining close relationships despite the distance?" In the latter example, grouping will see "pages related to specific aspects of your query." This is available in Search Labs (Web Guide) by going to the "Web" tab/filter. As such, you can switch to "All" for the usual experience. However, Google will experiment with showing AI-organized results in the All tab and other parts of Search over time. Further reading: Google Users Are Less Likely To Click on Links When an AI Summary Appears in the Results, Pew Research Finds

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Microsoft CEO Satya Nadella addressed growing internal unease at the company Thursday morning in a company-wide memo that acknowledged the "uncertainty and seeming incongruence" of conducting layoffs while achieving record profits and AI investments. The tech giant has eliminated more than 15,000 positions in 2025, including 9,000 cuts in early July alone, marking one of the most aggressive periods of job reductions in Microsoft's history. Nadella described this as the "enigma of success in an industry that has no franchise value," noting that Microsoft is thriving by "every objective measure" with strong market performance and record capital investments. "Progress isn't linear. It's dynamic, sometimes dissonant, and always demanding. But it's also a new opportunity for us to shape, lead through, and have greater impact than ever before," he added. Microsoft President Brad Smith said that an estimated $80 billion in capital expenditures over the past year created pressure to reduce operating costs.

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A Chinese inventor with no medical training is charging cancer patients $20,000 to inject highly concentrated chlorine dioxide -- a toxic bleach solution -- directly into their tumors, and is working with a former pharmaceutical executive to bring the unproven treatment to the United States, Wired reports. Xuewu Liu uses injections containing 20,000 parts per million of chlorine dioxide, significantly higher than the 3,000 ppm concentrations typically found in oral bleach solutions peddled by pseudoscience promoters. One patient told WIRED her tumor grew faster after Liu's injections and suspects the treatment caused her cancer to spread to her skin.

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An anonymous reader shares a report: Surveys show that the increasing number of extreme climate events, including floods, wildfires and hurricanes, has not raised awareness of the threats posed by climate change. Instead, people change their idea of what they see as normal. This so-called "boiling frog effect" makes gradual change difficult to spot. Researchers at Carnegie Mellon University in Pennsylvania wondered if climate change could be made more obvious by presenting it in binary terms. Local newspaper archives describing ice skating on Lake Carnegie when it froze in winter inspired a simple experiment. Some test subjects were shown temperature graphs of a fictional town's winter conditions; others had a chart showing whether or not a fictional lake froze each year. The result, published in Nature, showed those who receiving the second graphic consistently saw climate change as more real and imminent. Binary data gives a clearer impression of the "before" and "after." The disappearing ice is more vivid and dramatic than a temperature trace, even though the underlying data is the same. "We are literally showing them the same trend, just in different formats," says Rachit Dubey, a co-author of the study. These results should help drive more effective ways of communicating the impact of climate change in future by finding simple binary, black-and-white examples of its effects.

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Massive mobile device tracking data has exposed the interconnected network of Myanmar's expanding scam centers, revealing how trafficked workers circulate between compounds despite February crackdowns. Analysis of 4.9 million location records from 11,930 mobile devices between January 2024 and May 2025 showed five devices visited all three major compounds -- Yatai New City, Apolo Park, and Yulong Bay Park -- plus the raided KK Park and Huanya Park facilities. Workers are forced into romance scams, deceiving victims into believing they're in romantic relationships before extracting money. A South Asian man held six months at KK Park worked 16 hours daily conducting these online deceptions while enduring beatings and electric shocks for poor performance. Nikkei's investigation combined satellite imagery analysis, social media posts from Chinese platform Douyin, and open-source intelligence techniques to document continued construction at eight of 16 suspected sites. Myanmar authorities deported over 66,000 foreign nationals involved in these online fraud operations between October 2023 and June 2025.

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The Ninth Circuit Court of Appeals has ruled that NFTs qualify as "goods" under the Lanham Act, entitling them to trademark protection. The decision in Yuga Labs v. Ryder Ripps establishes that brand owners can sue NFT copycats with the same legal tools used against counterfeit sneakers or handbags.

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Board game crowdfunding platform Gamefound is acquiring Indiegogo, planning to integrate the latter's 38 million global members with its crowdfunding technology. Both platforms will continue operating separately, though Gamefound campaigns will appear on both sites for additional exposure. Indiegogo will immediately adopt Gamefound's flat 5% fee structure with no additional promotional charges, replacing its current pricing model. The platform will also implement Gamefound's tipping policy that directs 100% of tips to creators outside the checkout process.

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A cyber-espionage campaign exploiting vulnerable Microsoft server software has escalated to deploying ransomware against victims, Microsoft said, marking a significant shift from typical state-backed data theft operations to attacks designed to paralyze networks until payment is made. The campaign by a group Microsoft calls "Storm-2603" has compromised at least 400 organizations, according to Netherlands-based cybersecurity firm Eye Security, quadrupling from 100 victims cataloged over the weekend. The National Institutes of Health confirmed one server was breached and additional servers were isolated as a precaution, while reports indicate the Department of Homeland Security and multiple other federal agencies were also compromised.

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An anonymous reader quotes a report from The Register: Some customers of Broadcom's VMware business currently cannot access security patches, putting them at greater risk of attack. Customers in that perilous position hold perpetual licenses for VMware products but do not have a current support contract with Broadcom, which will not renew those contracts unless users sign up for software subscriptions. Yet many customers in this situation run products that Broadcom continues to support with patches and updates. In April 2024, Broadcom CEO Hock Tan promised "free access to zero-day security patches for supported versions of vSphere" so customers "are able to use perpetual licenses in a safe and secure fashion." VMware patches aren't freely available; users must log on to Broadcom's support portal to access the software. Some VMware users in this situation have told The Register that when they enter the portal they cannot download patches, and that VMware support staff have told them it may be 90 days before the software fixes become available. "Because our support portal requires validation of customer entitlements for software patches, only entitled customers have access to the patches at this time," a VMware spokesperson said. "A separate patch delivery cycle will also be available for non-entitled customers and will follow at a later date." The timing of that "later date" remains uncertain. The Register also notes that "users haven't had access to patches since May."

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Physicists at SLAC National Accelerator Laboratory superheated gold to over 33,000F using giant lasers and X-rays -- far exceeding the limits set by long-standing physics models. From the report: In an experiment presented today in Nature, researchers, for the first time ever, demonstrated a way to directly measure the temperature of matter in extreme states, or conditions with intensely high temperatures, pressures, or densities. Using the new technique, scientists succeeded in capturing gold at a temperature far beyond its boiling point -- a procedure called superheating -- at which point the common metal existed in a strange limbo between solid and liquid. The results suggest that, under the right conditions, gold may have no superheating limit. If true, this could have a wide range of applications across spaceflight, astrophysics, or nuclear chemistry, according to the researchers. The study is based on a two-pronged experiment. First, the scientists used a laser to superheat a sample of gold, suppressing the metal's natural tendency to expand when heated. Next, they used ultrabright X-rays to zap the gold samples, which scattered off the surface of the gold. By calculating the distortions in the X-ray's frequency after colliding with the gold particles, the team locked down the speed and temperature of the atoms. The experimental result seemingly refutes a well-established theory in physics, which states that structures like gold can't be heated more than three times their boiling point, 1,948 degrees Fahrenheit (1,064 degrees Celsius). Beyond those temperatures, superheated gold is supposed to reach the so-called "entropy catastrophe" -- or, in more colloquial terms, the heated gold should've blown up. The researchers themselves didn't expect to surpass that limit. The new result disproves the conventional theory, but it does so in a big way by far overshooting the theoretical prediction, showing that it's possible to heat gold up to a jaw-dropping 33,740 degrees F (18,726 degrees C). [...] The team is already applying the technique to other materials, such as silver and iron, which they happily report produced some promising data.

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