fidzu : geek

An anonymous reader quotes a report from the Guardian: Nearly a century ago, scientists proposed that a mysterious invisible substance they named dark matter clumped around galaxies and formed a cosmic web across the universe. What dark matter is made from, and whether it is even real, are still open questions, but according to a study, the first direct evidence of the substance may finally have been glimpsed. More work is needed to rule out less exotic explanations, but if true, the discovery would go down as a turning point in the decades-long search for the elusive substance that is said to make up 27% of the cosmos. "This could be a crucial breakthrough in unraveling the nature of dark matter," said Prof Tomonori Totani, an astrophysicist at the University of Tokyo, who said gamma rays emanating from the centre of the Milky Way appeared to bear the signature of the substance. [...] To search for potential dark matter signals, Totani analysed data from Nasa's Fermi Gamma-ray Space Telescope, which detects the most energetic photons in the electromagnetic spectrum. He spotted a pattern of gamma rays that appeared to match the shape of the dark matter halo that spreads out in a sphere from the heart of the galaxy. The signal "closely matches the properties of gamma-ray radiation predicted to be emitted by dark matter," Totani told the Guardian. Details are published in the Journal of Cosmology and Astroparticle Physics. If Totani has seen dark matter at work, the observations suggest it is made from elementary particles 500 times more massive than the proton. But far more work is needed to rule out other astrophysical processes and background emissions that could explain the signals. Totani said the "decisive factor" would be detecting gamma rays with the same spectrum from other regions of space, such as dwarf galaxies. According to Prof Justin Read, an astrophysicist at the University of Surrey, the lack of significant signals from such galaxies strongly argues against Totani having seen gamma rays emitted from dark matter particle annihilation. Prof Kinwah Wu, a theoretical astrophysicist at UCL, urged caution, saying: "I appreciate the author's hard work and dedication, but we need extraordinary evidence for an extraordinary claim," he said. "This analysis has not reached this status yet. It is a piece of work which serves as an encouragement for the workers in the field to keep on pressing."

Read more of this story at Slashdot.

26 Nov 2025 10:00am GMT

China launched an uncrewed Shenzhou 22 spacecraft to serve as an emergency lifeboat for three astronauts aboard the Tiangong space station after a docked return craft was found to have a cracked window likely caused by space debris. "A Long March 2F rocket fired its engines and lifted off with the Shenzhou 22 spacecraft, carrying cargo instead of a crew, at 11:11 pm EST Monday (04:11 UTC Tuesday)," reports Ars Technica. "The spacecraft docked with the Tiangong station nearly 250 miles (400 kilometers) above the Earth about three-and-a-half hours later." From the report: Chinese engineers worked fast to move up the launch of the Shenzhou 22, originally set to fly next year. On November 4, astronauts discovered one of the two crew ferry ships docked to the Tiangong station had a damaged window, likely from an impact with a small fragment of space junk. [...] Now, 20 days after the saga began, the Tiangong outpost again has a lifeboat for its long-term residents. Astronauts Zhang Lu, Fu Wei, and Zhang Hongzhang will return to Earth on the Shenzhou 22 spacecraft next year, soon after the arrival of their three replacements. The Tiangong astronauts will head outside the station on a spacewalk to inspect the damaged window on Shenzhou 20. Eventually, Shenzhou 20 will depart Tiangong and reenter the atmosphere with cargo. Assuming a smooth landing, Chinese engineers will have an opportunity to get a closer look at the damage on the ground to inform the design of future spacecraft. A preliminary assessment of the window indicates the crack is in the outermost layer of heat-insulating glass in Shenzhou 20's porthole window, according to Chinese state media. Engineers on the ground conducted simulations and wind tunnel ablation tests to determine whether the window might fail during reentry. "The results showed that the cracks would still propagate further," reported CCTV, China's government-run television network. "We held review meeting, and everyone agreed that ensuring the safe return of the astronauts was too risky with the glass damaged," Zhou said. While this crew is just one month into their planned six-month expedition, an emergency could force them to leave the station and return home at any time. Although remote, another collision with space junk, a major systems failure, or a medical emergency involving one of the astronauts could trigger an evacuation. That's why Chinese officials wanted to quickly launch Shenzhou 22 to give the crew a ticket home.The International Space Station follows the same policy, with SpaceX's Dragon spacecraft and Russian Soyuz ships serving as lifeboats until their crews' scheduled return to Earth.

Read more of this story at Slashdot.

26 Nov 2025 7:00am GMT

The UK is seeking to fast-track new atomic development to meet soaring energy demands driven by AI and electrification. According to a new report published by the government's Nuclear Regulatory Taskforce, excessive regulation has made Britain the most expensive place in the world to build nuclear projects. The report is calling for a sweeping overhaul to accelerate reactor construction -- everything from "streamlining regulation" to relaxing environmental and safety constraints. The Register reports: The document outlines 47 recommendations for the government, which come under five general areas: providing clearer leadership and direction for the nuclear sector; simplifying the regulatory approval process for atomic projects; reducing risk aversion; addressing incentives to delay progress; and working with the nuclear sector to speed delivery and boost innovation. Among the recommendations is that a Commission for Nuclear Regulation should be established, becoming a "unified decision maker" across all other regulators, planners, and approval bodies. The report also talks of reforming environmental and planning regimes to speed approvals, echoing the government's earlier decisions to streamline the planning process to make it easier for datacenter projects to get built. It recommends amending the cost cap for judicial reviews and limiting legal challenges to Nationally Strategic Infrastructure Projects (NSIPs), while indemnifying nuclear developers against any damages they might incur as a result of proceeding with their project while a judicial review is still being decided. Another recommendation that may be cause for concern is that the government should modify the Habitats Regulations to reduce costs. These are rules created to protect the most important and vulnerable natural sites and wildlife species across the UK. The report also states that radiation limits for workers are overly conservative and well below what could be appropriately considered "broadly acceptable," claiming that they are many times less than what the average person in the UK normally receives in a year.

Read more of this story at Slashdot.

26 Nov 2025 3:30am GMT

Google has made it very clear that it's intending to bring Android to laptops and desktops, and replace Chrome OS with Android in the process. We now have a codename, and some more information about what this will look like in practice. Over the weekend, a tipster on Telegram named Frost Core shared a link to an intriguing Google job listing for a 'Senior Product Manager, Android, Laptop and Tablets.' While we already know Google is bringing Android to the PC, the listing explicitly states that the role involves 'working on a new Aluminium, Android-based, operating system.' This effectively confirms that Aluminium is the codename for the new unified platform. The name appears to be a nod to the project's roots: like Chromium (the open-source version of ChromeOS), Aluminium is a metal ending in '-ium.' The choice of the British spelling - emphasizing the 'Al' prefix - likely pays homage to Android serving as the project's foundation." ↫ Mishaal Rahman at Android Authority So we have the codename, and of course, what we also have is a strong focus on "AI", which will be "at the core" of desktop Android. Further details uncovered in job openings include a focus not just on entry-level hardware, but also midrange and premium laptops and desktops, as well as Chrome OS being replaced by this new desktop Android variant. I somehow doubt existing Chrome OS devices will be updated to this new desktop Android variant, so Chrome OS will continue to exist as a product for at least quite a few years to come. I still have a considerable amount of doubt that Google would be able to pull this off in a successful way. It's already hard enough to get anyone to buy any laptop that isn't running Windows or macOS, and I doubt the Android operating system has the kind of pull with consumers to make them consider switching to it on their laptops or desktops. Enthusiasts will surely eat it up - if only to try - but without any clear, massive success, this desktop Android thing runs the real risk of ending up at Google's graveyard. These Android laptops can be incredible products, but even if they are, I just won't trust Google to remain interested in it.

25 Nov 2025 11:11pm GMT

In trial, 82% saw weight rebound and cardiovascular health reverse after withdrawal.

25 Nov 2025 10:44pm GMT

Roku users will be hit first.

25 Nov 2025 9:22pm GMT

Some RAM kits are over three times as expensive as they were three months ago.

25 Nov 2025 8:15pm GMT

You may have noticed a sharp increase in problems and issues in Windows recently - following the rise of the "AI" hype cycle, entirely coincidentally, I'm sure - and it seems Microsoft is finally starting to acknowledge just how bad Windows has become. On the positive side though, following all that backlash, Microsoft acknowledged Windows has issues, and as if on cue, the company in a new support article has admitted that there are problems on almost every major Windows 11 core feature. The issues are related to XAML and this impacts all the Shell components like the Start Menu, Taskbar, Explorer, and Windows Settings. ↫ Sayan Sen at Neowin It's wild how many core components like this have apparently been broken due to these problems since July of this year. This means countless Windows users have been experiencing weird issues on a daily basis in multiple components for four months now, which is absolutely wild. On top of all the more structural problems in Windows, I wonder how people can get anything done at all - only a few days ago, I had to manually clean out the Installer folder in the Windows folder on my wife's gaming PC, because for some inexplicable reason, Windows decided to permanently store 18GB's worth (!) of past Adobe Acrobat updates and installers in there. It's impossible to reliably say that Microsoft's incessant focus on crypto NFTs "AI" lies at the root of all of these problems, but if 30% of "new" code in Microsoft is indeed regurgitated by "AI", it's hard not to conclude as such.

24 Nov 2025 11:12am GMT

I suspect that many people who take an interest in Internet privacy don't appreciate how hard it is to resist browser fingerprinting. Taking steps to reduce it leads to inconvenience and, with the present state of technology, even the most intrusive approaches are only partially effective. The data collected by fingerprinting is invisible to the user, and stored somewhere beyond the user's reach. On the other hand, browser fingerprinting produces only statistical results, and usually can't be used to track or identify a user with certainty. The data it collects has a relatively short lifespan - days to weeks, not months or years. While it probably can be used for sinister purposes, my main concern is that it supports the intrusive, out-of-control online advertising industry, which has made a wasteland of the Internet. ↫ Kevin Boone My view on this matter is probably a bit more extreme than some: I believe it should be illegal to track users for advertising purposes, because the data collected and the targeting it enables not only violate basic privacy rights enshrined in most constitutions, they also pose a massive danger in other ways. This very same targeting data is already being abused by totalitarian states to influence our politics, which has had disastrous results. Of course, our own democratic governments' hands aren't exactly clean either in this regard, as they increasingly want to use this data to stop "terrorists" and otherwise infringe on basic rights. Finally, any time such data ends up on the black market after data breaches, criminals, organised or otherwise, also get their hands on it. I have no idea what such a ban should look like, or if it's possible to do this even remotely effectively. In the current political climate in many western countries, which are dominated by the wealthy few and corporate interests, it's highly unlikely that even if such a ban was passed as lip service to concerned constituents, any fines or other deterrents would probably be far too low to make a difference anyway. As such, my desire to have targeted online advertising banned is mostly theory, not practice - further illustrated by the European Union caving like cowards on privacy to even the slightest bit of pressure. Best I can do for now is not partake in this advertising hellhole. I disabled and removed all advertising from OSNews recently, and have always strongly advised everyone to use as many adblocking options as possible. We not only have a Pi-Hole to keep all of our devices at home safe, but also use a second layer of on-device adblockers, and I advise everyone to do the same.

24 Nov 2025 10:51am GMT

Over the course of 2025, every single major cloud provider has failed. In June, Google Cloud had issues taking down Cloud Storage for many users. In late October, Amazon Web Services had a massive outage in their main hub, us-east-1, affecting many services as well as some people's beds. A little over a week later Microsoft Azure had a [widespread outage][Azure outage] that managed to significantly disrupt train service in the Netherlands, and probably also things that matter. Now last week, Cloudflare takes down large swaths of the internet in a way that causes non-tech people to learn Cloudflare exists. And every single time, people share that one XKCD comic.

24 Nov 2025 12:00am GMT

After Gandi was bought up and started taking extortion level prices for their domains I've been looking for an excuse to migrate registrar. Last week I decided to bite the bullet and move to Porkbun as I have another domain renewal coming up. However after setting up an account and paying for the transfer for 4 domains, I realized their DNS services are provided by Cloudflare! I personally do not use Cloudflare, and stay far away from all of their products for various reasons.

18 Nov 2025 12:00am GMT

The waydroid package prior to version 1.5.4-2 (including aur/waydroid) creates Python byte-code files (.pyc) at runtime which were untracked by pacman. This issue has been fixed in 1.5.4-3, where byte-compiling these files is now done during the packaging process. As a result, the upgrade may conflict with the unowned files created in previous versions. If you encounter errors like the following during the update:

error: failed to commit transaction (conflicting files) waydroid: /usr/lib/waydroid/tools/__pycache__/__init__.cpython-313.pyc exists in filesystem waydroid: /usr/lib/waydroid/tools/actions/__pycache__/__init__.cpython-313.pyc exists in filesystem waydroid: /usr/lib/waydroid/tools/actions/__pycache__/app_manager.cpython-313.pyc exists in filesystem

You can safely overwrite these files by running the following command: pacman -Syu --overwrite /usr/lib/waydroid/tools/\*__pycache__/\*

06 Nov 2025 12:00am GMT