fidzu : geek

A new study suggests Mercury may have shrunk about 30% more than scientists previously thought, losing as much as 14 miles in diameter as its interior cooled and contracted over billions of years. "That's significant for a planet barely 3,000 miles (4,900 kilometers) across," reports the Associated Press. From the report: Mercury's rough surface, continually reshaped by debris hurled from impact craters, may have hidden the true extent of the loss, according to the researchers whose findings appear in the journal Geophysical Research Letters. The news comes one week after a pair of European and Japanese spacecraft shed its cruising platform and advanced toward Mercury. Known as BepiColombo, the linked craft are expected to enter orbit around Mercury in November before splitting up for a fuller survey. BepiColombo's laser instrument should confirm how much Mercury is withering as a result of internal cooling, said Gaku Nishiyama, the study's lead author who is taking part in the space mission. The shrinkage could be even more than his team is estimating based on measurements from NASA's Messenger spacecraft in the 2010s. Only one other spacecraft has ever visited Mercury, NASA's Mariner 10 in the 1970s.

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12 Sep 2026 9:00am GMT

The Athletic reports that researchers at the University of Utah are studying itPBM, a medical-grade red-light therapy that has shown promising signs of reducing brain inflammation and improving cognition, mood, anxiety, motor performance and neural connectivity. The report centers in part on former BYU football star and University of Utah adjunct professor Larry Carr, who says the treatment helped him after years of brain damage from repeated head impacts. An anonymous reader shares an excerpt from the report: ... The knife, the call, the diagnosis in 2013, would lead [Carr] on a life-changing mission -- one in which he and a team of researchers at the University of Utah would eventually compile research that one of those researchers, Elisabeth Wilde, Ph.D, co-director of the Traumatic Brain Injury (TBI) and Concussion Center, calls "striking." The treatment they are studying is called photobiomodulation therapy, or itPBM (intranasal transcranial PBM), also known as red-light therapy. It is different from the kind of superficial red-light usage one can find on social media skincare channels or at a wellness boutique, and its application is broader. The research includes multiple studies, and is not just focused on ex-football players, but on women and men in various walks of life. The group recently published their latest results in the Journal of Neurotrauma, based on a study that followed 26 BYU football players throughout a season, suggesting the treatment could "potentially safeguard neurological health without reduced playing time or contact exposure." Definitive clinical trials haven't been run yet; broader research and validation is required, and some in the field are skeptical. Carr acknowledges some have told him that it could be "too good to be true." Still, other outside experts who spoke with The Athletic call the findings promising. They make sure to caution: This is not a cure-all, and there is much more to be tested. But the findings have been compelling enough to justify more research and more speculation. Researchers say 14 peer-reviewed studies have linked itPBM with improvements in cognition, mood, anxiety, attention, executive function, motor performance, and other measures, while brain imaging has shown reduced inflammation and improved connectivity. One of the most striking findings mentioned in the report came from a study of 26 BYU football players during the 2021 season. Players who did not receive treatment developed significant, widespread brain inflammation, while the treated group showed no comparable increase and even demonstrated reduced inflammation in some brain regions. As researcher Michael Carr put it, "I believe our BYU data suggests the players' brains using itPBM are actually healthier after the season." He added: "That is a first." Carr also said treated participants showed fewer symptoms of depression, anxiety, stress and PTSD, along with faster processing, better sustained attention and stronger executive function. Researchers have also observed improvements in balance, motor control and grip strength. Taken together, the findings suggest itPBM may have a neuroprotective effect.

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12 Sep 2026 5:00am GMT

Last week, Google announced that it managed to produce a detailed 3D reconstruction of an adult male fruit fly's brain and central nervous system. A few days later a software engineer at Coinbase said the fly brain was being trained to play the original Doom. "Each Doom frame stimulates sensory neurons," says Alex Wormuth. "Neural activity is mapped to game controls. Damage triggers a stimulus to two PPL101 dopamine cells as reinforcement." Since then, the digital brain model has been repurposed to control other games like Beat Saber and Super Mario 64. PC Gamer reports: You can even watch the fruit fly play in real time via Wormuth's website, and it not only shows the point of view in Doom, but can also show a third-person render of the fly going around Doom maps. As of the time of writing, the fly is on round 6385 and, well, it's not very good. Sorry, fly. But modders aren't done here. They have also somehow managed to make the fruit fly play Beat Saber, and play it pretty well. Lyra Bubbles on X has used the brain and replays of a song in Beat Saber to teach the fruit fly where to hit and why, via Reinforcement Learning. That does mean it's not organically reacting to the notes popping up on screen, but it is receiving input and responding to stimuli. Lyra says, "Further training is to reduce reliance on external signals and allow it to play fully reactively with no input data." And, after "pivoting to fly engineering in 2026", Jessica Paquette also shared on X their experience running the digital fly brain through Super Mario 64. If you think that is all the game's modders made the fruit fly play, think again, as YouTuber Ro0oney even put it in Minecraft. But this time, Ro0oney used Flywire.AI, a similar project made in collaboration with Princeton University. The number of neurons are different (160,000+ vs 139,255), and Google analyzed a male brain whilst Flywire analyzed a female brain, but the basic idea is the same.

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12 Sep 2026 1:00am GMT

"Dedicated launch is pretty essential for us for most of our missions."

11 Sep 2026 11:34pm GMT

On the Windows side of the age verification question, Microsoft is obviously following trends among lawmakers the world over. To address this, Windows is introducing a new platform capability: the Windows Age API. This API brings age awareness beyond the operating system by making it available across the entire Windows ecosystem so that apps and services can deliver age-appropriate experiences using the same trusted foundation. By making age awareness available as a platform capability, Windows helps developers build safeguards into experiences from the start rather than placing the burden on children and families to manage protections app by app. ↫ Rob Mauceri at the Windows Blogs Meanwhile, on the Linux side of things, there's been some cheering as at least California passed amendments to its age verification law to exempt open source operating systems. These amendments redefine the term "operating system provider" to exclude any person or entity that distributes an OS or application "under license terms that permit a recipient to copy, redistribute, and modify the software." Any software distributed under the GPL, MIT, BSD, and Apache licenses satisfies that test, which removes the likes of Debian, Fedora, Ubuntu, Arch, and the BSD family from AB 1856's scope. ↫ Luke James at Tom's Hardware I think this is not at all the good news that many make it out to be. Exempting Linux, BSD, and other open source operating systems from age verification obligations may seem like a good thing at first glance, but in reality, I think services and applications will simply choose to not work at all on platforms that do not implement age verification. The fear of legal ramifications, especially when it involves children, will be enough for existing and future popular services and applications to exclusively work on platforms that implement age verification - whether those fears are founded or not. In fact, I'm fairly sure a company like Microsoft, which has actually been feeling the squeeze from the Linux side recently - even if it is modestly so - is quite happy to see open source operating systems excluded from these obligations. Google, too, is probably none too unhappy to see any possible open source mobile operating system competitors not implement age verification. The fear of missing out is real, and most people are not as invested in fighting big tech and government surveillance as the average OSNews reader is going to be. If using Linux means not being able to play the latest hit games or use that new successful service, people will choose to stick with Windows or macOS. Let me be very clear that I do not support these age verification laws in any way, shape, or form, and I definitely do not want the open source world to embrace age verification. What I'm worried about is that the open source world will cheer on these exceptions and consider the battle won, when in reality, they feel more like Pyrrhic victories. Age verification laws must be fought and destroyed at ballot boxes the world over, because otherwise I fear they will become just another tool in big tech's toolbox, exemptions or not.

11 Sep 2026 10:06pm GMT

Simple games gain rich strategies in the face of noise.

11 Sep 2026 9:41pm GMT

The strain lurking in the inflatable structure was hypervirulent.

11 Sep 2026 9:14pm GMT

Do tech companies ever stop to think about the misery they unleash on people's lives? The Apple Watch Series 12 uses "Audio Intelligence" that, as well as secretly taking notes, also has a Live Rewind feature that can replay the last 15 seconds of recently detected audio and view a text transcript. ↫ Matt Growcoot at PetaPixel Another win for us Europeans: this dystopian nightmare will not be available in the EU.

09 Sep 2026 9:50pm GMT

Although Solaris is now mostly defunct, its influence remains substantial; technologies pioneered by Solaris can still be found across a wide range of software A lot of Solaris' inventions have been described and talked about ad nauseam (such as the Slab Allocator), but one I rarely see discussed is its use of turnstiles. Despite being relatively obscure, the idea has quietly spread far beyond Solaris. Variations of it can now be found in major operating systems, web browsers, and language runtimes. In fact, you're probably using several implementations of the same basic concept right now! ↫ Loïc Grégoire I'm not going to pretend to understand all of this, but I know you people do, and many of you will definitely find this interesting to read. Also note that Grégoire develops their own operating system kernel called zag.

09 Sep 2026 9:07pm GMT

Over the last few weeks, we have been doing research on the integration of our official distribution packages when installed on a target system. In this context we have been looking at the current uses of alpm-install-scriptlet(5) files and alpm-hooks(5) in around 120 package source repositories (alpm-source-repo(7)) to better understand the underlying functionality and use-cases these two integrations offer and target. In this article we are going to look at how these two systems work, how Arch Linux is currently using them and attempt to provide suggestions for when to use which. Learning about alpm-hooks(5) and alpm-install-scriptlet(5) files …

09 Aug 2026 12:00am GMT

This is just a short note on my blog that I have resigned from Arch Linux a package maintainer, developer and security team. I've spent around 10 years as an AUR maintainer, security team, Package Maintainer and then Developer. I implemented support for debug packages, did the initial POC work that would become the git migration and even somehow managed to pull of an online conference during The Plague with the help of others.

01 Aug 2026 12:00am GMT

Good morning from JetBrains Berlin office!

01 Jun 2026 12:00am GMT