An anonymous reader quotes a report from Ars Technica: On Thursday, AI-maker and OpenAI competitor Anthropic launched Claude Pro, a subscription-based version of its Claude.ai web-based AI assistant, which functions similarly to ChatGPT. It's available for $20/month in the US or 18 pounds/month in the UK, and it promises five-times-higher usage limits, priority access to Claude during high-traffic periods, and early access to new features as they emerge. Like ChatGPT, Claude Pro can compose text, summarize, do analysis, solve logic puzzles, and more.

Claude.ai is what Anthropic offers as its conversational interface for its Claude 2 AI language model, similar to how ChatGPT provides an application wrapper for the underlying models GPT-3.5 and GPT-4. In February, OpenAI chose a subscription route for ChatGPT Plus, which for $20 a month also gives early access to new features, but it also unlocks access to GPT-4, which is OpenAI's most powerful language model. What does Claude have that ChatGPT doesn't? One big difference is a 100,000 token context window, which means it can process about 75,000 words at once. Tokens are fragments of words used while processing text. That means Claude can analyze longer documents or hold longer conversations without losing its memory of the subject at hand. ChatGPT can only process about 8,000 tokens in GPT-4 mode.

Anthropic's primary selling point for the Claude Pro subscription is "5x more usage," but the company doesn't clearly communicate what Claude's free-tier usage limits actually are. Dropping clues like cryptic breadcrumbs, the company has written a support document about the topic that says, "If your conversations are relatively short (approximately 200 English sentences, assuming your sentences are around 15-20 words), you can expect to send at least 100 messages every 8 hours, often more depending on Claude's current capacity. Over two thirds of all conversations on claude.ai (as of September 2023) have been within this length." In another somewhat cryptic statement, Anthropic writes, "If you upload a copy of The Great Gatsby, you may only be able to send 20 messages in that conversation within 8 hours." We're not attempting the math, but if you know the precise word count of F. Scott Fitzgerald's classic, it may be possible to glean Claude's actual limits. We reached out to Anthropic for clarification yesterday and have not received a response by press time.

Bitcoin mining outfit Riot Platforms earned $31.7 million from Texas power authorities last month for curtailing operations -- far more than the value of the Bitcoin it mined in the same period. The Register reports: In a press release yesterday, Riot said it produced 333 Bitcoin at its mining operations in Rockdale, Texas, which would have been worth just shy of $9 million on August 31. All the cash earned from those energy credits, on the other hand, equates to around 1,136 Bitcoin, Riot CEO Jason Les said in the company's monthly update. "August was a landmark month for Riot in showcasing the benefits of our unique power strategy," Les said. "Riot achieved a new monthly record for Power and Demand Response Credits ... which surpassed the total amount of all Credits received in 2022. "These credits significantly lower Riot's cost to mine Bitcoin and are a key element in making Riot one of the lowest cost producers of Bitcoin in the industry," Les said.

The Electric Reliability Council of Texas (ERCOT) operates a demand response program that allows big energy consumers, like Riot, to earn power credits for using less of it for operations and selling power back to the grid, as well as additional credit for being enrolled in its demand response programs. As we reported in August of last year, the company earned $9.5 million in credits during a July 2022 heatwave as well -- still far less than it earned in Texas's hottest August on record this year.

An anonymous reader shares a report: If Apple had its way, the iPhone would continue to use the current Lightning connector for the next few years -- until the point when the company is ready to begin phasing out ports on its smartphones altogether. But the European Union forced its hand, requiring mobile device makers to use the USB-C standard by the end of next year. So Apple is now in the awkward position of embracing the very technology it didn't want. When the company introduces the iPhone 15 on Sept. 12, USB-C connectors will appear on its four new phone models, as well as the AirPods Pro, and Apple will describe it as a major win for customers.

Customers will be able to use a single charging cable for iPhones, Macs and iPads. It will bring breakthrough data transfer speed increases for the new high-end iPhone models. Phones will charge faster in some instances. And, finally, the phones will be compatible with chargers used by billions of non-Apple devices.

Why will Apple be so upbeat about a change it didn't ask for? That's because the company has an iron-clad rule: When it's introducing a new product or dealing with the media, it always wants to operate from a position of strength. Apple's keynote presentation won't mention the European Union or make reference to the many times over the past few years that it criticized the government's decision to require USB-C. Back when it was still resisting the switch, Apple laid out a few arguments, including that the change would harm the environment -- given that billions of obsolete cables may wind up in a landfill. Another rationale, floated by Apple marketing chief Greg Joswiak last year, is the potentially harmful precedent of governments influencing product design.

An anonymous reader quotes a report from UploadVR: Magic Leap 1 AR headsets will 'cease to function' from December 31, 2024, the company announced. Magic Leap 1 launched in mid 2018 as the first transparent AR headset marketed and sold to consumers. The headset is powered by a tethered waist-mounted compute pack and came with a single tracked controller, though it got hand tracking support too. Content for the device included avatar chat, a floating web browser, a Wayfair app for seeing how furniture might look in your room, two games made by Insomniac Games, and a Spotify background app.

But Magic Leap 1's eye-watering $2300 price and the limitations of transparent optics (even today) meant it reportedly fell significantly short of sales expectations. Transparent AR currently provides a much smaller field of view than the opaque display systems of VR-style headsets, despite costing significantly more. And Magic Leap 1's form factor wasn't suitable for outdoor use, so it didn't provide the out-of-home functionality AR glasses promise to one day like on-foot navigation, translation, and contextual information. The Information reported that Magic Leap's founder, the CEO at the time, originally expected it to sell over one million units in the first year. In reality it reportedly sold just 6000 units in the first six months.

Mark Zuckerberg posted a video to his personal Instagram profile showing clips of himself and Meta CTO Andrew Bosworth trying a surface-locked virtual keyboard in a Quest 2 headset. UploadVR reports: Zuckerberg claims he was able to achieve around 100 words per minute, while Bosworth says he reached 119 words per minute. The average person types at around 40 words per minute on a traditional keyboard, whereas professional typists reach between 70 and 120 words per minute depending on their skill level. If future headsets could turn any flat surface into a virtual keyboard, it would bring partial haptic feedback and allow you to rest your wrists as with physical keyboards, without the need to carry around a physical keyboard.

Developers can technically already build surface-locked virtual keyboards on Quest today, by using hand tracking and getting the user to tap the surface to calibrate its position. But in practice, even the slightest deviation of the virtual surface height from the real surface results in false key presses. Meta didn't share yet exactly how its research solves this issue. However, fiducial markers can be seen on the desk in the clip. If the system is preprogrammed with the exact dimensions of these markers, this may act as a robust dynamic calibration system.

Quest 3 will add a depth sensor to a Meta headset for the first time, and a leaked setup clip shows the headset generating a 3D mesh of its environment. If this mesh is precise enough, Quest 3 could potentially eventually support this kind of virtual keyboard. For now though, Meta is solely describing this as research, not a demo of a near term product experience. Meta will likely show off more of its VR and AR research at Meta Connect, which starts September 27 this year.

An anonymous reader quotes a report from Ars Technica: A neurosurgeon in Australia pulled a wriggling 3-inch roundworm from the brain of a 64-year-old woman last year -- which was quite the surprise to the woman's team of doctors and infectious disease experts, who had spent over a year trying to identify the cause of her recurring and varied symptoms. A close study of the extracted worm made clear why the diagnosis was so hard to pin down: the roundworm was one known to infect snakes -- specifically carpet pythons endemic to the area where the woman lived -- as well as the pythons' mammalian prey. The woman is thought to be the first reported human to ever have an infection with this snake-adapted worm, and it is the first time the worm has been found burrowing through a mammalian brain. [...]

Subsequent examination determined the roundworm was Ophidascaris robertsi based on its red color and morphological features. Genetic testing confirmed the identification. The woman went on ivermectin again and another anti-parasitic drug, albendazole. Months later, her lung and liver lesions improved, and her neuropsychiatric symptoms persisted but were improved. The doctors believe the woman became infected after foraging for warrigal greens (aka New Zealand spinach) around a lake near her home that was inhabited by carpet pythons. Usually, O. robertsi adults inhabit the snakes' esophagus and stomach and release their eggs in the snakes' feces. From there, the eggs are picked up by small mammals that the snakes feed upon. The larvae develop and establish in the small mammals, growing quite long despite the small size of the animals, and the worm's life cycle is complete when the snake eats the infected prey.

Doctors hypothesize the woman picked up the eggs meant for small mammals as she foraged, ingesting them either by not fully washing or cooking the greens or by not properly washing her hands or kitchen equipment. In retrospect, the progression of her symptoms suggests an initial foodborne infection, followed by worm larva migrating from her gastrointestinal tract to multiple organs. The prednisolone, an immunosuppressive drug, may have inadvertently helped the worm migrate and get into the central nervous system. Kennedy, a co-author of the report on the woman's case, stressed the importance of washing any foods foraged or taken from a garden. She also emphasized proper kitchen safety and hand washing.

Under an ambitious program, dubbed Replicator, the Pentagon aims to field thousands of autonomous systems within two years to counter China. The effort is being spearheaded by Deputy Defense Secretary Kathleen Hicks. Politico reports: Hicks said the time is right to push to rapidly scale up innovative technology. The move comes as the U.S. looks to get creative to deter China in the Indo-Pacific and Pentagon leadership has taken stock of how Ukraine has fended off Russia's invasion. "Industry is ready. The culture is ready to shift," Hicks said. "We have to drive that from the top, and we need to give it a hard target." "The great paradox of military innovation is you're going to have to make big bets and you've got to execute on those bets," she added.

With Replicator, the Pentagon aims to have thousands of autonomous systems across various domains produced and delivered in 18 to 24 months. Hicks declined to discuss what specific platforms might be produced under the program -- such as aerial drones or unmanned ships -- citing the "competition landscape" in the defense industry as well as concerns about tipping DOD's hand to China. The Pentagon will instead "say more as we get to production on capabilities."

Autonomous weapons are seen as a potential way to counter China's numerical advantages in ships, missiles and troops in a rapidly narrowing window. Fielding large numbers of cheap, expendable drones, proponents argue, is faster and lower-cost than exquisite weapons systems and puts fewer troops at risk. Another major aim of the Replicator initiative is to provide a template for future efforts to rapidly field military technology. She said lessons from the Replicator program could be applied throughout the Pentagon, military services and combatant commands.

To meet climate goals, some European countries are asking farmers to reduce livestock, relocate or shut down -- and an angry backlash has begun reshaping the political landscape before national elections in the fall. The New York Times: This summer, scores of farmers descended on the European Parliament in Strasbourg, France, to protest against new E.U. rules aimed at restoring natural areas and cutting emissions that contribute to climate change. Farmers have protested in Belgium, Italy and Spain, too. The discontent has underscored a widening divide on a continent that is on the one hand committed to acting on climate change but on the other often deeply divided about how to do it and who should pay for it.

[...] For many farmers, the feelings run deep. The prominent role of agriculture was enshrined in the European Union's founding documents as a way of ensuring food security for a continent still traumatized by the deprivations of World War II. But it was also a nod to national identities and a way to protect competing farming interests in what would become a common market. To that end, from its outset, the bloc established a fund that, to this day, provides farmers with billions of euros in subsidies every year. Increasingly, however, those subsidies and the bloc's founding ideals are running up against a new ambition: to adapt to a world where climate change threatens traditional ways of life. Scientists are adamant: To fulfill the bloc's goal of reaching net zero emissions by 2050 and to reverse biodiversity losses, Europe has to transform the way it produces its food.

Kitty Oppenheimer: Can you explain quantum mechanics to me?

J. Robert Oppenheimer: Well, this glass, this drink, this counter top, uhh.. our bodies, all of it. It's mostly empty space. Groupings of tiny energy waves bound together.

Kitty Oppenheimer: By what?

J. Robert Oppenheimer: Forces of attraction strong enough to convince us [that] matter is solid, to stop my body passing through yours.

— IMDB quote from Oppenheimer


Flash forward to 2023, where Mario Barbatti is a theoretical chemist and physicist researching light and molecule interactions. He's also a professor of chemistry at Aix Marseille University in France. Writing this week for Aeon, Barbatti argues that "there are no empty spaces within the atom.

"The empty atom picture is likely the most repeated mistake in popular science." It is unclear who created this myth, but it is sure that Carl Sagan, in his classic TV series Cosmos (1980), was crucial in popularising it. After wondering how small the nuclei are compared with the atom, Sagan concluded that "[M]ost of the mass of an atom is in its nucleus; the electrons are by comparison just clouds of moving fluff. Atoms are mainly empty space. Matter is composed chiefly of nothing." I still remember how deeply these words spoke to me when I heard them as a kid in the early 1980s. Today, as a professional theoretical chemist, I know that Sagan's statements failed to recognise some fundamental features of atoms and molecules...

Misconceptions feeding the idea of the empty atom can be dismantled by carefully interpreting quantum theory, which describes the physics of molecules, atoms and subatomic particles. According to quantum theory, the building blocks of matter — like electrons, nuclei and the molecules they form — can be portrayed either as waves or particles. Leave them to evolve by themselves without human interference, and they act like delocalised waves in the shape of continuous clouds. On the other hand, when we attempt to observe these systems, they appear to be localised particles, something like bullets in the classical realm. But accepting the quantum predictions that nuclei and electrons fill space as continuous clouds has a daring conceptual price: it implies that these particles do not vibrate, spin or orbit. They inhabit a motionless microcosmos where time only occasionally plays a role...

A molecule is a static object without any internal motion. The quantum clouds of all nuclei and electrons remain absolutely still for a molecule with a well-defined energy. Time is irrelevant... Time, however, comes into play when a molecule collides with another one, triggering a chemical reaction. Then, a storm strikes. The quantum steadiness bursts when the sections of the electronic cloud pour from one molecule upon another. The clouds mix, reshape, merge, and split. The nuclear clouds rearrange to accommodate themselves within the new electronic configuration, sometimes even migrating between molecules. For a fraction of a picosecond (10-12 seconds or a billionth of a millisecond), the tempest rages and reshapes the molecular landscape until stillness is restored in the newly formed compounds.

"Italian producers of parmesan cheese have been fighting against imitations for years," writes the Wall Street Journal, adding "Their latest trick to beat counterfeiters is edible microchips.

"Now, makers of Parmigiano-Reggiano, as the original parmesan cheese is officially called, are slapping the microchips on their 90-pound cheese wheels as part of an endless cat-and-mouse game between makers of authentic and fake products." New methods to guarantee the origin of products are being used across the EU. Some wineries are putting serial numbers, invisible ink and holograms on their bottles. So-called DNA fingerprinting of milk bacteria pioneered in Switzerland, which isn't in the EU, is now being tested inside the bloc as a method for identifying cheese. QR codes are also proliferating, including on individual portions of pre-sliced Prosciutto di San Daniele, a raw ham similar to Prosciutto di Parma. A smartphone can be used to show information such as how long the prosciutto has been aged and when it was sliced... The new silicon chips, made by Chicago-based p-Chip, use blockchain technology to authenticate data that can trace the cheese as far back as the producer of the milk used.

The chips have been in advanced testing on more than 100,000 Parmigiano wheels for more than a year. The consortium of producers wants to be sure the chips can stand up to Parmigiano's aging requirement, which is a minimum of one year and can exceed three years for some varieties... The p-Chips can withstand extreme heat or cold, can be read through ice and can withstand years of storage in liquid nitrogen. They have outperformed RFID chips, which are larger, can be more difficult to attach to products, are more fragile and can't survive extreme temperatures, according to p-Chip Chief Technology Officer Bill Eibon. Parmigiano producers also use QR codes, but the codes are easily copied and degrade during the cheese's aging process.

A robot heats the Parmigiano wheel's casein label — a small plaque made of milk protein that is widely used in the cheese industry — and then inserts the chip on top. A hand-held reader can grab the data from the chips, which cost a few cents each and are similar to the ones that some people have inserted under the skin of their pets. The chips can't be read remotely. In lab tests, the chips sat for three weeks in a mock-up of stomach acid without leaking any dangerous material. Eibon went a step further, eating one without suffering any ill effects, but he isn't touting that lest p-Chip face accusations it is tracking people, something that isn't possible because the chips can't be read remotely and can't be read once they are ingested.

"We don't want to be known as the company accused of tracking people," said Eibon. "I ate one of the chips and nobody is tracking me, except my wife, and she uses a different method."
Merck KGaA will soon be using the same chips, the article points out, and the chips "are also being tested in the automotive industry to guarantee the authenticity of car parts.

"The chips could eventually be used on livestock, crops or medicine stored in liquid nitrogen."

To one-up Valve's Steam Deck, Lenovo's handheld gaming device, the "Legion Go," will have "Switch-style detachable controllers," reports Ars Technica" The Legion Go wouldn't be the very first portable PC gaming device with removable controllers; the crowd-funded OneXplayer sported a similar design last year, for instance. But few other PC-based portables have similarly mimicked the Switch Joy-cons in their ability to slide smoothly off from the main screen of the system for detached play.

Combined with a nice, wide kickstand shown in the leaked images, you should be able to give your arms a rest by setting the bulky-looking Legion Go's screen on a tabletop. The slide-off controls also mean you don't need to purchase and/or drag out a separate controller when docking the device to a TV or monitor (which we assume will be a main use case of the device's two USB-C ports). And completely detachable controls for each hand means you can keep your hands as far apart as you want while you hold each "half-controller" separately (one of our favorite unique use cases on the Switch)... The Legion Go also reportedly sports an 8-inch diagonal screen, which is 1 inch larger than Valve's and ROG's devices.

The Legion Go leaks come just months after Lenovo abandoned its button- and cooler-packed Legion line of Android-based gaming phones as part of what it said was a "gaming portfolio consolidation." The Windows 11-based Legion Go — which Windows Central says will be based on AMD's Phoenix processors — should have the high-end PC gaming support that the Legion phones lacked, as well as a more market-proven form factor.
Windows Report believes Lenovo "is preparing to launch an entire gaming ecosystem alongside the Legion Go."

"Among the accessories is a new pair of Legion AR glasses specifically tweaked for gaming." Based on the images we have, the glasses should be small enough to wear through long gaming sessions, with only one USB cable connecting them to any device (most likely for power, which means no standalone battery). The Legion AR Glasess could also feature a high refresh rate and other gaming-specific features, as the Legion branding implies they're made specifically for that...

Researchers at Georgia Tech have developed a prototype pipeline for the Defense Advanced Research Projects Agency (DARPA) that can "distill" binary executables into human-intelligible code so that it can be updated and deployed in "weeks, days, or hours, in some cases." The work is part of a five-year, $10 million project with the agency. The Register reports: After running an executable through the university's "distillation" process, software engineers should be able to examine the generated HAR, figure out what the code does, and make changes to add new features, patch bugs, or improve security, and turn the HAR back into executable code, says GT associate professor and project participant Brendan Saltaformaggio. This would be useful for, say, updating complex software that was written by a contractor or internal team, the source code is no longer or never was to hand and neither are its creators, and stuff needs to be fixed up. Reverse engineering the binary and patching in an update by hand can be a little hairy, hence DARPA's desire for something a bit more solid and automatic. The idea is to use this pipeline to freshen up legacy or outdated software that may have taken years and millions of dollars to develop some time ago.

Saltaformaggio told El Reg his team has the entire process working from start to finish, and with some level of stability, too. "DARPA sets challenges they like to use to test the capabilities of a project," he told us over the phone. "So far we've handled every challenge problem DARPA's thrown at us, so I'd say it's working pretty well." Saltaformaggio said his team's pipeline disassembles binaries into a graph structure with pseudo-code, and presented in a way that developers can navigate, and replace or add parts in C and C++. Sorry, Java devs and Pythonistas: Saltaformaggio tells us that there's no reason the system couldn't work with other programming languages, "but we're focused on C and C++. Other folks would need to build out support for that." Along with being able to deconstruct, edit, and reconstruct binaries, the team said its processing pipeline is also able to comb through HARs and remove extraneous routines. The team has also, we're told, baked in verification steps to ensure changes made to code within hardware ranging from jets and drones to plain-old desktop computers work exactly as expected with no side effects.

One of the big promises of NFTs was that the artist who originally made them could get a cut every time their piece was resold. Unfortunately, that's not the case anymore. From a report: OpenSea, the biggest NFT marketplace still fully enforcing royalty fees, said today that it plans to stop the mandatory collection of resale fees for artists. Starting March 2024, those fees will essentially be tips -- an optional percentage of a sale price that sellers can choose to give the original artist. If the seller doesn't want to hand over any money, that'll be their choice.

The NFT ecosystem has been on a race to the bottom when it comes to fees. As the market for NFTs collapsed, marketplaces have lowered their own trading fees and stopped enforcing royalty fees in order to attract sellers. Blur, which has overtaken OpenSea as the biggest NFT marketplace by trading volume, only enforces a 0.5 percent fee on most collections, whereas creators typically set their fees at 5 to 10 percent. OpenSea will stop enforcing royalty fees on all new NFTs starting August 31st. The marketplace will continue enforcing the fees on certain existing collections until March 2024, at which point they'll become optional on all sales.

Debian blog: Over 30 years ago the late Ian Murdock wrote to the comp.os.linux.development newsgroup about the completion of a brand-new Linux release which he named "The Debian Linux Release." He built the release by hand, from scratch, so to speak. Ian laid out guidelines for how this new release would work, what approach the release would take regarding its size, manner of upgrades, installation procedures; and with great care of consideration for users without Internet connection. Unaware that he had sparked a movement in the fledgling F/OSS community, Ian worked on and continued to work on Debian. The release, now aided by volunteers from the newsgroup and around the world, grew and continues to grow as one of the largest and oldest FREE operating systems that still exist today.

Debian at its core is comprised of Users, Contributors, Developers, and Sponsors, but most importantly, People. Ians drive and focus remains embedded in the core of Debian, it remains in all of our work, it remains in the minds and hands of the users of The Universal Operating System. The Debian Project is proud and happy to share our anniversary not exclusively unto ourselves, instead we share this moment with everyone, as we come together in celebration of a resounding community that works together, effects change, and continues to make a difference, not just in our work but around the world. Debian is present in cluster systems, datacenters, desktop computers, embedded systems, IoT devices, laptops, servers, it may possibly be powering the web server and device you are reading this article on, and it can also be found in Spacecraft.

Apple has moved the "end call" button back to the middle of the screen in the newest developer version of iOS 17, released Tuesday. From a report: The move reverses a change that Apple had been considering over the summer, as CNBC reported last week. Previous beta versions of iOS 17 had moved the red "end call" button to the lower right-hand corner, as opposed to centered in the bottom half of the screen, where it had been for years. However, in the most recent developer beta, the end call button is centered vertically, in the middle of three buttons close to the bottom of the screen.

What to make of the news that early research appears unable to duplicate the much-ballyhooed claims for the LK99 superconductor?

"The episode revealed the intense appetite in Silicon Valley for finding the next big thing," argues the Washington Post, "after years of hand-wringing that the tech world has lost its ability to come up with big, world-changing innovations, instead channeling all its money and energy into building new variations of social media apps and business software..." [M]any tech leaders are nervous that the current focus on consumer and business software has led to stagnation. A decade ago, investors prophesied that self-driving cars would take over the roads by the mid-2020s — but they are still firmly in the testing phase, despite billions of dollars of investment. Cryptocurrencies and blockchain technology have had multiple hype cycles of their own, but have yet to fundamentally change any industry, besides crime and money laundering. Tech meant to help mitigate climate change, like carbon capture and storage, has lagged without major advances in years. Meanwhile, Big Tech companies used their huge cash hoards to snap up smaller competitors, with antitrust regulators only recently beginning to clamp down on consolidation. Over the last year, as higher interest rates have cut into the amount of venture capital and slowing growth has caused companies to pull back spending, a massive wave of layoffs has swept the industry, and companies such as Google that previously said they'd invest some of their profits in big, risky ideas have turned away from such "moonshots..."

Room-temperature superconductors would be especially relevant to the tech industry right now, which is busy burning billions of dollars on new computer chips and the energy costs to run them to train the AI models behind tools like ChatGPT and Google's Bard. For years, computer chips have gotten smaller and more efficient, but that progress has run up against the limits of the physical world as transistors get so small some are now just one atom thick.

A UCLA-led study of NASA's DART mission found that the collision launched a cloud of boulders from its surface. "The boulder swarm is like a cloud of shrapnel expanding from a hand grenade," said Jewitt, lead author of the study and a UCLA professor of earth and planetary sciences. "Because those big boulders basically share the speed of the targeted asteroid, they're capable of doing their own damage." From a news release: In September 2022, NASA deliberately slammed a spacecraft into the asteroid Dimorphos to knock it slightly off course. NASA's objective was to evaluate whether the strategy could be used to protect Earth in the event that an asteroid was headed toward our planet. Jewitt said that given the high speed of a typical impact, a 15-foot boulder hitting Earth would deliver as much energy as the atomic bomb that was dropped on Hiroshima. Fortunately, neither Dimorphos nor the boulder swarm have ever posed any danger to Earth. NASA chose Dimorphos because it was about 6 million miles from Earth and measured just 581 feet across -- close enough to be of interest and small enough, engineers reasoned, that the half-ton Double Asteroid Redirection Test, or DART, planetary defense spacecraft would be able to change the asteroid's trajectory.

When it hurtled into Dimorphos at 13,000 miles per hour, DART slowed Dimorphos' orbit around its twin asteroid, Didymos, by a few millimeters per second. But, according to images taken by NASA's Hubble Space Telescope, the collision also shook off 37 boulders, each measuring from 3 to 22 feet across. None of the boulders is on a course to hit Earth, but if rubble from a future asteroid deflection were to reach our planet, Jewitt said, they'd hit at the same speed the asteroid was traveling -- fast enough to cause tremendous damage. The research, published in the Astrophysical Journal Letters, found that the rocks were likely knocked off the surface by the shock of the impact. A close-up photograph taken by DART just two seconds before the collision shows a similar number of boulders sitting on the asteroid's surface -- and of similar sizes and shapes -- to the ones that were imaged by the Hubble telescope. The boulders that the scientists studied, among the faintest objects ever seen within the solar system, are observable in detail thanks to the powerful Hubble telescope.

A U.S. judge revoked Sam Bankman-Fried's bail due to probable cause that he tampered with witnesses at least twice. U.S. District Judge Lewis Kaplan rejected a defense request to delay SBF's detention pending appeal of the bail revocation. Reuters reports: The decision could complicate Bankman-Fried's efforts to prepare for trial, where the 31-year-old former billionaire faces charges of having stolen billions of dollars in FTX customer funds to plug losses at his Alameda Research hedge fund. Bankman-Fried has pleaded not guilty. He was led out of the courtroom by members of the U.S. Marshals Service in handcuffs after removing his shoelaces, jacket and tie and emptying his pockets.

His parents, both law professors at Stanford University, were present in the courtroom's audience. His mother, Barbara Fried, nodded to him in tears as he left. His father, Joseph Bankman, placed his hand over his heart as he watched his son be led away. Bankman-Fried has been largely confined to his parents' Palo Alto, California, home on $250 million bond since his December 2022 arrest.

The aviation sector's plans to pass along the cost of decarbonization could add hundreds of dollars to the price of some fights. From a report: Fresh from surviving the Covid-19 pandemic, the aviation industry is about to hand passengers the multi-trillion dollar bill to fight its next existential threat: decarbonization. Cleaning up flying is a mission of improbable scale: Neutralize the carbon emissions of about 25,000 planes in the world's commercial fleet that typically ferry some 4 billion people a year and burn close to 100 billion gallons of jet kerosene. That's more dirty liquid to launder than all the beer drunk in the world in a year.

Some $5 trillion of capital investment may be needed to deliver on aviation's goal of reaching carbon neutrality by 2050, almost all of it plowed into sustainable fuel production and renewable power generation, according to McKinsey. It's a mountain of money so large it could wipe out global airline revenue for the best part of a decade. With the clock ticking, industry leaders are starting to voice an uncomfortable truth. It's clear, they say, that the costs of weaning air travel off fossil fuels will land on passengers.

Through seven decades of nearly unfettered expansion, the aviation industry had to pay little attention to emissions. Passengers grew accustomed to ever-improving connectivity, increasing competition and cheap tickets. Suddenly, carriers find themselves in an environmental squeeze, with governments setting deadlines and activists gluing themselves to runways to call attention to global warming. While Greta Thunberg introduced flight-shaming to the public before the pandemic, record temperatures this summer have only underscored climate campaigners' point. Aviation's expensive transition to cleaner fuels has the power to put the democratization of flying into reverse, leading to higher fares, and fewer routes and airlines.

An anonymous reader quotes a report from the New York Times: Rex Heuermann, the meticulous architectural consultant who the authorities say murdered three women and buried them on a Long Island beach more than a decade ago, may have been among the last of the dying breed of American serial killers. Even as serial killers came to inhabit a central place in the nation's imagination -- inspiring hit movies, television shows, books, podcasts and more -- their actual number was dwindling dramatically. There were once hundreds at large, and a spike in the 1970s and '80s terrified the country. Now only a handful at most are known to be active, researchers say. The techniques that led to the arrest of Mr. Heuermann, who has pleaded not guilty to the crimes, help explain the waning of serial killing, which the F.B.I. defines as the same person killing two or more victims in separate events at different times.

It is harder to hide. Rapid advances in investigative technology, video and other digital surveillance tools, as well as the ability to analyze mountains of information, quickly allow the authorities to find killers who before would have gone undetected. At the same time, Americans have adopted more cautious habits in their everyday lives -- hitchhiking, for example, is less common, and children are driven to and from school. That reduces easy targets. And, some theorize, those bent on killing now opt for spectacular mass murders. "The 'perfect crime' concept is more of a concept than it ever has been before," said Adam Scott Wandt, an assistant professor at John Jay College of Criminal Justice. More than a decade ago, prosecutors said, Mr. Heuermann tried to cover his digital tracks by communicating with victims using so-called burner phones, prepaid units purchased anonymously for temporary use. But thanks to exponential progress in technology since 2010, investigators were able not only to chart Mr. Heuermann's decade-old movements; they could also monitor exactly what he was searching online in recent months. They saw that he was using an anonymous account for internet queries like "Why could law enforcement not trace the calls made by the long island serial killer," prosecutors said. He had also been visiting massage parlors and contacting women working as escorts, they said.

The ubiquity of technology has made it harder to get away with murder, Mr. Wandt said. The amount of data people create in their daily lives is more than many can conceptualize, he said. Just by walking outside, people are now tracked by ever-present cameras, from Amazon's Ring units outside homes to surveillance at banks and retail stores, he said. Every use of a phone or computer creates streams of data that are collected directly on devices or immortalized on servers, he said. A concerted effort by the federal government to ensure that even the smallest police departments can use technology to their benefit has also helped give investigators an upper hand, Mr. Wandt said. In 1987, there were 198 known active serial killers -- people connected to at least two murders -- and 404 known victims across the United States, according to a report published three years ago by researchers who run Radford University and Florida Gulf Coast University's Serial Killer Database. By 2018, there were only 12 known serial killers and 44 victims, according to the report. "The big question is: Are they going underground and finding other techniques?â said Terence Leary, an associate professor in the psychology department at Florida Gulf Coast University and the team leader for the database.

He said that some serial murderers have killed for discrete periods before taking prolonged breaks: "Maybe they decided to give it up. Who knows?"