An anonymous reader quotes a report from VentureBeat: A new startup PIN AI (not to be confused with the poorly reviewed hardware device the AI Pin by Humane) has emerged from stealth to launch its first mobile app, which lets a user select an underlying open-source AI model that runs directly on their smartphone (iOS/Apple iPhone and Google Android supported) and remains private and totally customized to their preferences. Built with a decentralized infrastructure that prioritizes privacy, PIN AI aims to challenge big tech's dominance over user data by ensuring that personal AI serves individuals -- not corporate interests. Founded by AI and blockchain experts from Columbia, MIT and Stanford, PIN AI is led by Davide Crapis, Ben Wu and Bill Sun, who bring deep experience in AI research, large-scale data infrastructure and blockchain security. [...]

PIN AI introduces an alternative to centralized AI models that collect and monetize user data. Unlike cloud-based AI controlled by large tech firms, PIN AI's personal AI runs locally on user devices, allowing for secure, customized AI experiences without third-party surveillance. At the heart of PIN AI is a user-controlled data bank, which enables individuals to store and manage their personal information while allowing developers access to anonymized, multi-category insights -- ranging from shopping habits to investment strategies. This approach ensures that AI-powered services can benefit from high-quality contextual data without compromising user privacy. [...] The new mobile app launched in the U.S. and multiple regions also includes key features such as:

- The "God model" (guardian of data): Helps users track how well their AI understands them, ensuring it aligns with their preferences.
- Ask PIN AI: A personalized AI assistant capable of handling tasks like financial planning, travel coordination and product recommendations.
- Open-source integrations: Users can connect apps like Gmail, social media platforms and financial services to their personal AI, training it to better serve them without exposing data to third parties.
- "With our app, you have a personal AI that is your model," Crapis added. "You own the weights, and it's completely private, with privacy-preserving fine-tuning." Davide Crapis, co-founder of PIN AI, told VentureBeat that the app currently supports several open-source AI models, including small versions of DeepSeek and Meta's Llama. "With our app, you have a personal AI that is your model," Crapis added. "You own the weights, and it's completely private, with privacy-preserving fine-tuning."

You can sign up for early access to the PIN AI app here.

In 2022, writer and activist Cory Doctorow coined the term "enshittification" to describe the gradual deterioration of a service or product. The term's prevalence has increased to the point that it was the National Dictionary of Australia's word of the year last year. The editors at Ars Technica, having "covered a lot of things that have been enshittified," decided to highlight some of the worst examples the've come across. Here's a summary of each thing mentioned in their report: Smart TVs: Evolved into data-collecting billboards, prioritizing advertising and user tracking over user experience and privacy. Features like convenient input buttons are sacrificed for pushing ads and webOS apps. "This is all likely to get worse as TV companies target software, tracking, and ad sales as ways to monetize customers after their TV purchases -- even at the cost of customer convenience and privacy," writes Scharon Harding. "When budget brands like Roku are selling TV sets at a loss, you know something's up."

Google's Voice Assistant (e.g., Nest Hubs): Functionality has degraded over time, with previously working features becoming unreliable. Users report frequent misunderstandings and unresponsiveness. "I'm fine just saying it now: Google Assistant is worse now than it was soon after it started," writes Kevin Purdy. "Even if Google is turning its entire supertanker toward AI now, it's not clear why 'Start my morning routine,' 'Turn on the garage lights,' and 'Set an alarm for 8 pm' had to suffer."

Portable Document Format (PDF): While initially useful for cross-platform document sharing and preserving formatting, PDFs have become bloated and problematic. Copying text, especially from academic journals, is often garbled or impossible. "Apple, which had given the PDF a reprieve, has now killed its main selling point," writes John Timmer. "Because Apple has added OCR to the MacOS image display system, I can get more reliable results by screenshotting the PDF and then copying the text out of that. This is the true mark of its enshittification: I now wish the journals would just give me a giant PNG."

Televised Sports (specifically cycling and Formula 1): Streaming services have consolidated, leading to significantly increased costs for viewers. Previously affordable and comprehensive options have been replaced by expensive bundles across multiple platforms. "Formula 1 racing has largely gone behind paywalls, and viewership is down significantly over the last 15 years," writes Eric Berger. "Major US sports such as professional and college football had largely been exempt, but even that is now changing, with NFL games being shown on Peacock, Amazon Prime, and Netflix. None of this helps viewers. It enshittifies the experience for us in the name of corporate greed."

Google Search: AI overviews often bury relevant search results under lengthy, sometimes inaccurate AI-generated content. This makes finding specific information, especially primary source documents, more difficult. "Google, like many big tech companies, expects AI to revolutionize search and is seemingly intent on ignoring any criticism of that idea," writes Ashley Belanger.

Email AI Tools (e.g., Gemini in Gmail): Intrusive and difficult to disable, these tools offer questionable value due to their potential for factual inaccuracies. Users report being unable to fully opt-out. "Gmail won't take no for an answer," writes Dan Goodin. "It keeps asking me if I want to use Google's Gemini AI tool to summarize emails or draft responses. As the disclaimer at the bottom of the Gemini tool indicates, I can't count on the output being factual, so no, I definitely don't want it."

Windows: While many complaints about Windows 11 originated with Windows 10, the newer version continues the trend of unwanted features, forced updates, and telemetry data collection. Bugs and performance issues also plague the operating system. "... it sure is easy to resent Windows 11 these days, between the well-documented annoyances, the constant drumbeat of AI stuff (some of it gated to pricey new PCs), and a batch of weird bugs that mostly seem to be related to the under-the-hood overhauls in October's Windows 11 24H2 update," writes Andrew Cunningham. "That list includes broken updates for some users, inoperable scanners, and a few unplayable games. With every release, the list of things you need to do to get rid of and turn off the most annoying stuff gets a little longer."

Web Discourse: The rapid spread of memes, trends, and corporate jargon on social media has led to a homogenization of online communication, making it difficult to distinguish original content and creating a sense of constant noise. "[T]he enshittifcation of social media, particularly due to its speed and virality, has led to millions vying for their moment in the sun, and all I see is a constant glare that makes everything look indistinguishable," writes Jacob May. "No wonder some companies think AI is the future."

An anonymous reader quotes a report from The Guardian: The pace of global heating has been significantly underestimated, according to renowned climate scientist Prof James Hansen, who said the international 2C target is "dead." A new analysis by Hansen and colleagues concludes that both the impact of recent cuts in sun-blocking shipping pollution, which has raised temperatures, and the sensitivity of the climate to increasing fossil fuels emissions are greater than thought. The group's results are at the high end of estimates from mainstream climate science but cannot be ruled out, independent experts said. If correct, they mean even worse extreme weather will come sooner and there is a greater risk of passing global tipping points, such as the collapse of the critical Atlantic ocean currents.

Hansen, at Columbia University in the US, sounded the alarm to the general public about climate breakdown in testimony he gave to a UN congressional committee in 1988. "The Intergovernmental Panel on Climate Change (IPPC) defined a scenario which gives a 50% chance to keep warming under 2C -- that scenario is now impossible," he said. "The 2C target is dead, because the global energy use is rising, and it will continue to rise." The new analysis said global heating is likely to reach 2C by 2045, unless solar geoengineering is deployed. [...] In the new study, published in the journal Environment: Science and Policy for Sustainable Development, Hansen's team said: "Failure to be realistic in climate assessment and failure to call out the fecklessness of current policies to stem global warming is not helpful to young people."

[...] Hansen said the point of no return could be avoided, based on the growing conviction of young people that they should follow the science. He called for a carbon fee and dividend policy, where all fossil fuels are taxed and the revenue returned to the public. "The basic problem is that the waste products of fossil fuels are still dumped in the air free of charge," he said. He also backed the rapid development of nuclear power. Hansen also supported research on cooling the Earth using controversial geoengineering techniques to block sunlight, which he prefers to call "purposeful global cooling." He said: "We do not recommend implementing climate interventions, but we suggest that young people not be prohibited from having knowledge of the potential and limitations of purposeful global cooling in their toolbox." Political change is needed to achieve all these measures, Hansen said: "Special interests have assumed far too much power in our political systems. In democratic countries the power should be with the voter, not with the people who have the money. That requires fixing some of our democracies, including the US."

"Sometimes, government makes a bad bet..." writes the Los Angeles Times. Opening in 2014, the Ivanpah concentrated solar plant "quickly became known as an expensive, bird-killing eyesore." Assuming that state officials sign off — which they most likely will, because the deal will lead to lower bills for PG&E customers — two of the three towers will shut down come 2026. Ivanpah's owners haven't paid off the project's $1.6-billion federal loan, and it's unclear whether they'll be able to do so. Houston-based NRG Energy, which operates Ivanpah and is a co-owner with Kelvin Energy and Google, said that federal officials took part in the negotiations to close PG&E's towers and that the closure agreement will allow the federal government "to maximize the recovery of its loans." It's possible Ivanpah's third and final tower will close, too. An Edison spokesperson told me the utility is in "ongoing discussions" with the project's owners and the federal government over ending the utility's contract.

It might be tempting to conclude government should stop placing bets and just let the market decide. But if it weren't for taxpayers dollars, large-scale solar farms, which in 2023 produced 17% of California's power, might never have matured into low-cost, reliable electricity sources capable of displacing planet-warming fossil fuels. More than a decade ago, federal loans helped finance some of the nation's first big solar-panel farms.

Not every government investment will be a winner. Renewable energy critics still raise the specter of Solyndra, a solar panel manufacturer that filed for bankruptcy in 2011 after receiving a $535-million federal loan. But on the whole, clean power investments have worked out. The U.S. Department of Energy reported that as of Dec. 31, it had disbursed $40.5 billion in loans. Of that amount, $15.2 billion had already been repaid. The federal government was on the hook for $1.03 billion in estimated losses but had reaped $5.6 billion in interest.
The article notes recent U.S. energy-related loans to a lithium mine in Nevada (close to $1 billion) and $15 billion to expand hydropower, upgrade power lines, and add batteries. Some of the loans won't get paid back "If federal officials are doing their jobs well," the article adds. "That's the risk inherent to betting on early-stage technologies." About the Ivanpah solar towers, they write "Maybe they never should have been built. They're too expensive, they don't work right, they kill too many birds... It's good that their time is coming to an end. But we should take inspiration from them, too: Don't get complacent. Keep trying new things."

PG&E says their objective at the time was partly to "support new technologies," with one senior director of commercial procurement noting "It's not clear in the early stages what technologies will work best and be most affordable for customers. Solar photovoltaic panels and battery energy storage were once unaffordable at large scale." But today they've calculated that ending their power agreements with Ivanpah would cost customers "substantially less." And once deactivated, Ivanpah's units "will be decommissioned, providing an opportunity for the site to potentially be repurposed for renewable PV energy production," NRG said in a statement.

The Las Vegas Review-Journal notes that instead the 3,500-acre, 386-megawatt concentrated thermal power plant used a much older technology, "a system of mirrors to reflect sunlight and generate thermal energy, which is then concentrated to power a steam engine." Throughout the day, 350,000 computer-controlled mirrors track the sunlight and reflect it onto boilers atop 459-foot towers to generate AC. Nowadays, photovoltaic solar has surpassed concentrated solar power and become the dominant choice for renewable, clean energy, being more cost effective and flexible... So many birds have been victims of the plant's concentrated sun rays that workers referred to them as "streamers," for the smoke plume that comes from birds that ignite in midair. When federal wildlife investigators visited the plant around 10 years ago, they reported an average of one "streamer" every two minutes.
"Meanwhile, environmentalists continue to blame the Mojave Desert plant for killing thousands of birds and tortoises," reports the Associated Press. And a Sierra Club campaign organizer also says several rare plant species were destroyed during the plant's construction. "While the Sierra Club strongly supports innovative clean energy solutions and recognizes the urgent need to transition away from fossil fuels, Ivanpah demonstrated that not all renewable technologies are created equal."

NASA's Hubble Space Telescope has released the largest ever photomosaic featuring over 200 million stars -- all of which are bright than our own Sun. It consists of over 600 overlapping Hubble images and 2.5 billion pixels. "That is a huge number, yet only a fraction of the estimated one trillion stars in the Andromeda galaxy," reports TechSpot. "Many of Andromeda's less massive stars are beyond Hubble's sensitivity limit and thus, are not represented in the imaged."

"NASA has multiple sizes of the panoramic available for download, including the full-size 203 MB image (42,208 x 9,870) and a more user friendly 9 MB variant (10,552 x 2,468)."

Longtime Slashdot readers smooth wombat and AmiMoJo shares a fusion energy breakthrough from China. Charming Science reports: China's "artificial sun," officially known as the Experimental Advanced Superconducting Tokamak (EAST), has achieved a groundbreaking milestone in fusion energy research. According to the Chinese Academy of Sciences (CAS), EAST recently sustained high-confinement plasma operation for an unprecedented 1,066 seconds, shattering the previous world record of 403 seconds, also set by EAST in 2023. [...] The 1,000-second mark is considered a critical threshold in fusion research. Sustaining plasma for such extended durations is essential for demonstrating the feasibility of operating fusion reactors. This breakthrough, accomplished by the Institute of Plasma Physics under the CAS, signifies a major leap towards realizing the potential of fusion energy. [...] The success of EAST's recent experiment can be attributed to several key advancements. Researchers have made significant strides in improving the stability of the heating system, enhancing the accuracy of the control system, and refining the precision of the diagnostic systems. Warning: the source originates from China Daily, an English-language daily newspaper owned by the Central Propaganda Department of the Chinese Communist Party. It's rated "questionable" by Media Bias/Fact Check because of its association with the CCP.

Scientists have detected cosmic "chorus waves" resembling bird chirps over 62,000 miles from Earth, a region where such waves have never been observed. "Scientists still aren't sure how the perturbations happen, but they think Earth's magnetic field may have something to do with it," reports the Associated Press. From the report: The chorus has been picked up on radio antennas for decades, including receivers at an Antarctica research station in the 1960s. And twin spacecraft -- NASA's Van Allen Probes -- heard the chirps from Earth's radiation belts at a closer distance than the newest detection. The latest notes were picked up by NASA's Magnetospheric Multiscale satellites, launched in 2015 to explore the Earth and sun's magnetic fields. The new research was published Wednesday in the journal Nature.

Chorus waves have also been spotted near other planets including Jupiter and Saturn. They can even produce high-energy electrons capable of scrambling satellite communications. "They are one of the strongest and most significant waves in space," said study author Chengming Liu from Beihang University in an email. The newfound chorus waves were detected in a region where Earth's magnetic field is stretched out, which scientists didn't expect. That raises fresh questions about how these chirping waves form. "It's very captivating, very compelling," Jaynes said. "We definitely need to find more of these events."

"Engineers have showcased a prototype electric vehicle that can drive for up to 40 miles (64 kilometers) per day using just solar power," reports LiveScience. The production-ready "Aptera Launch Edition" made its first appearance this month at CES 2025, and "also offers up to 400 miles (640 km) of range from a single charge via an electrical output, company representatives said in a statement."

LiveScience describes the vehicle as "lighter and more energy-efficient than conventional EVs, while offering a 50% reduction in aerodynamic resistance," with an energy efficiency rating of 100 Watt-hours per mile (Wh/mile). By contrast, a Tesla Model S (released in 2022) consumes 194 Wh/mile in the city in mild weather and 288 Wh/mile on the highway in mild weather, according to the EV Database. At a maximum range of 440 miles — including 40 miles using solar power and 400 miles using electricity — the Aptera EV may also overtake the current longest-range vehicles in production. The Mercedes-Benz EQS 450+ has a maximum range of 425 miles (684 km), according to the EV Database, followed by the Lucid Air Grand Touring at 410 miles (660 km).
Aptera says it's raised $135 million "through equity crowdfunding" to fund its pre-production progress. "Since its launch, the Company has accepted $1.7 billion in pre-orders with nearly 50,000 vehicles reserved by future Aptera owners in the U.S. and internationally."

MotorTrend writes that "nearly two decades in the making, the otherworldly three-wheel Aptera is headed to production this year as a $40,000, 400-mile EV that can capture up to 40 miles worth of free solar energy every day. Maybe." The California startup made similar promises in 2008, 2009, 2012, and 2022 and yet it has never delivered a single vehicle. Is anything different this time...?

At CES, co-CEO (and one of Aptera's original founders) Chris Anthony told MotorTrend it will take another $60 million to finish the development work, buy the tooling, and build out the Carlsbad, California, assembly plant. "We're still in fundraising mode and we hope that we inspire some people in this beautiful building (Las Vegas Convention Center) to invest in Aptera," Anthony said. "We're trying to raise $20 million in the first quarter of this year. That will basically kick off all the long-lead items to get into production, but it's a $60 million plan to get into volume production." Anthony said the company has already made one of its largest purchases, the molds for the carbon-fiber sheet-molding composite body structure and the fiberglass sheet-molding composite body panels that will be made in Italy. The next $20 million will cover the tooling for the diecast metal suspension arms and the injection-molded interior components...

It would be relatively easy for Aptera to hand build cars in a garage and announce the start of production, but the plan calls for building up to 80 cars per day per the guidance of engineering consultant and YouTuber Sandy Munro, who is an Aptera investor and adviser. "He really helped shepherd the design from what was an early prototype prove-out design into how to make the most manufacturable vehicle ever," Anthony said. The structure is built from just six parts and the entire car has been designed to be put together in a factory with just 12 stations. But that radical simplicity complicates the job at hand right now. In addition to developing the car, the small engineering team also has to create the machine that makes it. Anthony's plan has the factory ramping up to build 20,000 vehicles a year within nine months of starting production at the end of 2025.

Before that can happen, Aptera needs to clear the same hurdle that tripped it up in 2011 and sent the company stumbling into liquidation — the money. "We would love one investor to be so inspired by what we're doing that they just hand us a $60 million check," Anthony told MotorTrend. "But it could be something that's kind of piecemeal over the next nine months to get that $60 million into the company." Are you convinced?

"Oracle has informed us they won't voluntarily withdraw their trademark on 'JavaScript'." That's the word coming from the company behind Deno, the alternative JavaScript/TypeScript/WebAssembly runtime, which is pursuing a formal cancellation with the U.S. Patent and Trademark Office.

So what happens next? Oracle "will file their Answer, and we'll start discovery to show how 'JavaScript' is widely recognized as a generic term and not controlled by Oracle." Deno's social media posts show a schedule of various court dates that extend through July of 2026, so "The dispute between Oracle and Deno Land could go on for quite a while," reports InfoWorld: Deno Land co-founder Ryan Dahl, creator of both the Deno and Node.js runtimes, said a formal answer from Oracle is expected before February 3, unless Oracle extends the deadline again. "After that, we will begin the process of discovery, which is where the real legal work begins. It will be interesting to see how Oracle argues against our claims — genericide, fraud on the USPTO, and non-use of the mark."

The legal process begins with a discovery conference by March 5, with discovery closing by September 1, followed by pretrial disclosure from October 16 to December 15. An optional request for an oral hearing is due by July 8, 2026.
Oracle took ownership of JavaScript's trademark in 2009 when it purchased Sun Microsystems, InfoWorld notes.

But "Oracle does not control (and has never controlled) any aspect of the specification or how the phrase 'JavaScript' can be used by others," argues an official petition filed by Deno Land Inc. with the United States Patent and Trademark Office: Today, millions of companies, universities, academics, and programmers, including Petitioner, use "JavaScript" daily without any involvement with Oracle. The phrase "JavaScript" does not belong to one corporation. It belongs to the public. JavaScript is the generic name for one of the bedrock languages of modern programming, and, therefore, the Registered Mark must be canceled.

An open letter to Oracle discussing the genericness of the phrase "JavaScript," published at https://javascript.tm/, was signed by 14,000+ individuals at the time of this Petition to Cancel, including notable figures such as Brendan Eich, the creator of JavaScript, and the current editors of the JavaScript specification, Michael Ficarra and Shu-yu Guo. There is broad industry and public consensus that the term "JavaScript" is generic.
The seven-page petition goes into great detail, reports InfoWorld. "Deno Land also accused Oracle of committing fraud in its trademark renewal efforts in 2019 by submitting screen captures of the website of JavaScript runtime Node.js, even though Node.js was not affiliated with Oracle."

An anonymous reader quotes a report from Rolling Stone: Sun pours through the lush foliage of a jungle, bleaching the pale limestone as a rotting man stands in the center of an otherwise empty arena, his yellow eyes leering from beneath a fringe of limp, blonde hair. Positioned around the edge are a hundred bodies, Orcs and Trolls and bipedal oxen shouting, demanding, the death of the dishonorable. Their voices swell into a cacophony of noise before one rings out above the rest, howling, 'Kill the cheater and you'll get 20 gold!' There is silence, and then another frenzy. As I watch, eyes fixed on the dim glow of a laptop screen, I think of the colosseum in Rome -- sweat running down the muscled arms of battle-tested gladiators, the crowd cheering for blood.

This might sound like a moment pulled from a high fantasy drama made for prestige TV, but this is World of Warcraft, a now 20-year old online RPG. Instead of actors parading in front of green screens, this story's cast are streamers that occupy a virtual world. Tensions are high not because they're scripted, but because in World of Warcraft's Hardcore mode, death is permanent. Dejected, though acknowledging the transgression made, Sequisha -- the streamer who was promptly executed for cheating -- sighs, and goes back to the character select screen. He creates a new avatar; it's time to start the game all over again.

Sequisha's execution and subsequent reincarnation is just one of hundreds of stories playing out everyday in World of Warcraft as streamers have flocked to the massively multiplayer online RPG (MMORPG) to play together. Through their strife, and a commitment to staying in-character via roleplay, groups like the guild OnlyFangs have turned World of Warcraft into an RPG within an RPG, playing out improvisational personal drama where the stakes are high. In Hardcore mode, World of Warcraft has become the best soap opera on the internet, all playing out across over dozens of OnlyFangs creator streams every day. The new "Classic" and "Hardcore" servers were launched in celebration of World of Warcraft's 20th anniversary, helping to reignite interest in the game and increase viewership on platforms like Twitch and YouTube. The Hardcore server, where character death is permanent, attracted top streamers, leading to the formation of guilds like OnlyFangs.

After a successful first season, OnlyFangs reshuffled its roster, embracing a more immersive roleplaying approach in its second season. "What they didn't know was their experiment in World of Warcraft roleplay would inadvertently create one of the best emergent dramas on the internet," reports Rolling Stone.

The Washington Post shares some good news from 2024: Researchers were able to detect a significant dip in atmospheric levels of hydrochlorofluorocarbons — harmful gases that deplete the ozone layer — for the first time, almost 30 years after countries first agreed to phase out the chemicals.

A new satellite launched in March to track and publicly reveal the biggest methane polluters in the oil and gas industry — an important step in tackling the greenhouse gas that accounts for almost a third of global warming. The NASA/Carbon Mapper satellite, which measures CO2 and methane emissions, also launched, providing detailed images from individual oil and gas facilities across the world.

Back on Earth, the world's largest plant for pulling carbon dioxide out of the atmosphere opened in Iceland. Norway became the first country to have more electric than gas-powered vehicles, while one Japanese island began using a new generation of batteries to help stockpile massive amounts of clean electricity.

There were also small but important victories for animal conservation. The Iberian lynx, a European wildcat once on the brink of extinction, is no longer classed as an "endangered" species — in what experts have hailed as the "greatest recovery of a cat species ever achieved through conservation...."

Despite a large number of powerful tornadoes to hit the United States in early 2024, the death tolls were fortunately not as high as meteorologists feared, in part due to improved forecasting technology.
The article also notes America's Food and Drug Administration approved a new therapy which uses a patients' own cells to attack skin cancer for adults for whom surgery isn't an option. "Experts said the decision could open the door to similar treatments for far more common cancers."

And one more inspiring story from 2024: 105-year-old Virginia Hislop, of Yakima, Washington received her master's degree from Stanford University...

Following its record-breaking closest approach to the Sun, NASA's Parker Solar Probe has transmitted a beacon tone back to Earth indicating it's in good health and operating normally. NASA: The mission operations team at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland received the signal just before midnight EST, on the night of Dec. 26. The team was out of contact with the spacecraft during closest approach, which occurred on Dec. 24, with Parker Solar Probe zipping just 3.8 million miles from the solar surface while moving about 430,000 miles per hour.

The spacecraft is expected to send back detailed telemetry data on its status on Jan. 1. This close-up study of the Sun allows Parker Solar Probe to take measurements that help scientists better understand how material in this region gets heated to millions of degrees, trace the origin of the solar wind (a continuous flow of material escaping the Sun), and discover how energetic particles are accelerated to near light speed. Previous close passes have helped scientists pinpoint the origins of structures in the solar wind and map the outer boundary of the Sun's atmosphere.

NASA's Parker Solar Probe made a historic approach on Christmas Eve, flying within 3.8 million miles of the Sun at a record-breaking speed of 430,000 mph. It marks humanity's closest encounter with a star. Live Science reports: Mission control cannot communicate with the probe during this rendezvous due to its vicinity to the sun, and will only know how the spacecraft fared in the early hours of Dec. 27 after a beacon signal confirms both the flyby's success and the overall state of the spacecraft. Images gathered during the flyby will beam home in early January, followed by scientific data later in the month when the probe swoops further away from the sun, Nour Rawafi, who is the project scientist for the mission, told reporters at the Annual Meeting of the American Geophysical Union (AGU) earlier this month.

Parker launched in 2018 to help decode some of the biggest mysteries about our sun, such as why its outermost layer, the corona, heats up as it moves further from the sun's surface, and what processes accelerate charged particles to near-light speeds. In addition to revolutionizing our understanding about the sun, the probe also caught rare closeups of passing comets and studied the surface of Venus. On Christmas Eve, scientists expect the probe to have flown through plumes of plasma still attached to the sun, and hope it observed solar flares occurring simultaneously due to ramped-up turbulence on the sun's surface, which spark breathtaking auroras on Earth but also disrupt communication systems and other technology. "Right now, Parker Solar Probe has achieved what we designed the mission for," Nicola Fox, the associate administrator for NASA Science Mission Directorate at NASA Headquarters in Washington, D.C., said in a NASA video released on Dec. 24. "It's just a total 'Yay! We did it' moment."

"Voyager 1 is currently exploring interstellar space at a distance of 15.5 billion miles (24.9 billion kilometers) away from Earth," writes Gizmodo.

And yet a team of amateur astronomers in the Netherlands was able to receive Voyager's signals on a 1950s-era telescope... The astronomers used orbital predictions of Voyager 1's position in space to correct for the Doppler shift in frequency caused by the motion of Earth, as well as the motion of the spacecraft through space... [The signal] was found live, and further analysis later confirmed that it corresponded to the position of Voyager 1.
"I did the experiment," mathematician/scientific software engineer Tammo Jan Dijkema told Slashdot in an email, as "one of a crew of four." He works at ASTRON (the Netherlands Institute for Radio Astronomy) while volunteering at the Dwingeloo radio telescope, and wants to clarify any suggestion in Gizmodo's article "that we received signals at S-band, which is not true. We received the 'normal' Voyager-1 signal at 8.4 GHz. See our blog post... The Dwingeloo reception was not related to Voyager's temporary glitch at all."

And Scientific American shares an interesting perspective on the Voyager probes: we everyday Earthlings may simplistically think of the sun as a compact distant ball of light, in part because our plush atmosphere protects us from our star's worst hazards. But in reality the sun is a roiling mass of plasma and magnetism radiating itself across billions of miles in the form of the solar wind, which is a constant stream of charged plasma that flows off our star. The sun's magnetic field travels with the solar wind and also influences the space between planets. The heliosphere grows and shrinks in response to changes in the sun's activity levels over the course of an 11-year cycle... [Jamie Rankin, a space physicist at Princeton University and deputy project scientist of the Voyager mission] notes, astronomers of all stripes are trapped within that chaotic background in ways that may or may not affect their data and interpretations. "Every one of our measurements to date, until the Voyagers crossed the heliopause, has been filtered through all the different layers of the sun," Rankin says.

On their trek to interstellar space, the Voyagers had to cross a set of boundaries: first a termination shock some seven billion or eight billion miles away from the sun, where the solar wind abruptly begins to slow, then the heliopause, where the outward pressure from the solar wind is equaled by the inward pressure of the interstellar medium. Between these two stark borders lies the heliosheath, a region where solar material continues to slow and even reverse direction. The trek through these boundaries took Voyager 1, the faster of the twin probes, nearly eight years; such is the vastness of the scale at play.

Beyond the heliopause is interstellar space, which Voyager 1 entered in 2012 and Voyager 2 reached in 2018. It's a very different environment from the one inside our heliosphere — quieter but hardly quiescent. "It's a relic of the environment the solar system was born out of," Rankin says of the interstellar medium. Within it are energetic atomic fragments called galactic cosmic rays, as well as dust expelled by dying stars across the universe's eons, among other ingredient.
Earlier this month Wired noted " The secret of the Voyagers lies in their atomic hearts: both are equipped with three radioisotope thermoelectric generators, or RTGs — small power generators that can produce power directly on board. Each RTG contains 24 plutonium-238 oxide spheres with a total mass of 4.5 kilograms..." But as time passes, the plutonium on board is depleted, and so the RTGs produce less and less energy. The Voyagers are therefore slowly dying. Nuclear batteries have a maximum lifespan of 60 years. In order to conserve the probes' remaining energy, the mission team is gradually shutting down the various instruments on the probes that are still active...

Four active instruments remain, including a magnetometer as well as other instruments used to study the galactic environment, with its cosmic rays and interstellar magnetic field. But these are in their last years. In the next decade — it's hard to say exactly when — the batteries of both probes will be drained forever.

NASA's Parker Solar Probe will make its closest approach yet to the Sun on Christmas Eve, flying within 3.8 million miles of the solar surface and entering its atmosphere for the first time.

The spacecraft, which travels at speeds up to 430,000 miles per hour, aims to study the origins of solar wind -- the stream of charged particles emanating from the Sun's corona. The probe's heat shield will endure temperatures exceeding 2,500-degree Fahrenheit during the flyby, requiring specialized materials like sapphire crystal tubes and niobium wiring to protect its instruments.

Today a group of German scientists presented data suggesting Earth is absorbing more sunlight than in the past, reports Ars Technica, "largely due to reduced cloud cover." We can measure both the amount of energy the Earth receives from the Sun and how much energy it radiates back into space.... The new paper finds that the energy imbalance set a new high in 2023, with a record amount of energy being absorbed by the ocean/atmosphere system. This wasn't accompanied by a drop in infrared emissions from the Earth, suggesting it wasn't due to greenhouse gases, which trap heat by absorbing this radiation. Instead, it seems to be due to decreased reflection of incoming sunlight by the Earth....

Using two different data sets, the teams identify the areas most effected by this, and they're not at the poles, indicating loss of snow and ice are unlikely to be the cause. Instead, the key contributor appears to be the loss of low-level clouds [particularly over the Atlantic ocean]... The drop in low-level clouds had been averaging about 1.3 percent per decade. 2023 saw a slightly larger drop occur in just one year....

So, what could be causing the clouds to go away? The researchers list three potential factors. One is simply the variability of the climate system, meaning 2023 might have just been an extremely unusual year, and things will revert to trends in the ensuing years. The second is the impact of aerosols, which both we and natural processes emit in copious quantities. These can help seed clouds, so a reduction of aerosols (driven by things like pollution control measures) could potentially account for this effect. The most concerning potential explanation, however, is that there may be a feedback relationship between rising temperatures and low-level clouds. Meaning that, as the Earth warms, the clouds become sparse, enhancing the warming further. That would be bad news for our future climate, because it suggests that the lower range of warming estimates would have to be adjusted upward to account for it.
If the decline in reflectivity wasn't just caused by normal variability, the researchers warn, "the 2023 extra heat may be here to stay..."

To help replace power plants, Japan's northernmost island, Hokkaido, "is turning to a new generation of batteries designed to stockpile massive amounts of energy," reports the Washington Post.

"The Hokkaido Electric Power Network (HEPCO Network) is deploying flow batteries, an emerging kind of battery that stores energy in hulking tanks of metallic liquid." [F]low batteries are making their debut in big real-world projects. Sumitomo Electric, the company that built the Hokkaido plant, has also built flow batteries in Taiwan, Belgium, Australia, Morocco and California. Hokkaido's flow battery farm was the biggest in the world when it opened in April 2022 — a record that lasted just a month before China built one that is eight times bigger and can deliver as much energy as an average U.S. natural gas plant. "It looks like flow batteries are finally about to take off with interest from China," said Michael Taylor, an energy analyst at the International Renewable Energy Agency, an international group that studies and promotes green energy. "When China starts to get comfortable with a technology and sees it working, then they will very quickly scale their manufacturing base if they think they can drive down the costs, which they usually can...."

Lithium-ion batteries are perfect for smartphones because they're lightweight and fit in small spaces, even if they don't last long and have to be replaced frequently. Utilities have a different set of priorities: They need to store millions of times more energy, and they have much more room to work with. "If you think about utility-scale stationary applications, maybe you don't need lithium-ion batteries. You can use another one that is cheaper and can provide the services that you want like, for example, vanadium flow batteries," said Francisco Boshell, a researcher at the International Renewable Energy Agency...

Flow batteries are designed to tap giant tanks that can store a lot of energy for a long time. To boost their storage capacity, all you have to do is build a bigger tank and add more vanadium. That's a big advantage: By contrast, there's no easy way to adjust the storage capacity of a lithium-ion battery — if you want more storage, you have to build a whole new battery... One major barrier to building more of these battery farms is finding enough vanadium. Three-quarters of the world's supply comes as a by-product from 10 steel mills in China and Russia, according to Kara Rodby [a battery analyst at the investment firm Volta Energy Technologies] who got her PhD at the Massachusetts Institute of Technology studying the design and market for flow batteries. Australia, South Africa and the United States also produce vanadium, but in much smaller quantities. Mines that have been proposed could boost supply. And some flow battery start-ups are trying to sidestep the vanadium problem entirely by using different materials that are easier to buy.

The other hurdle is their up-front cost. Vanadium flow batteries are at least twice as expensive to build as lithium-ion batteries, Rodby said, and banks are hesitant to lend money to fund an unfamiliar technology. But experts say flow batteries can be cheaper in the long run because they're easier to maintain and last longer. A lithium-ion battery might have to be replaced after 10 years, but Rodby says flow batteries can last much longer. "There really is no finite lifetime for a flow battery in the way there is for lithium-ion," Rodby said.
Here's an interesting statistic from the article. "Over the next six years, utilities will have to build 35 times as many batteries as there are today to soak up all extra renewable energy that will come online, according to the International Energy Agency."

"Polar oceans constitute emission hotspots during the summer," according to a new paper published in the peer-reviewed scientific journal Science Advances. "And including those sea-to-air fluxes in an atmospheric chemistry-climate model "results in a net radiative effect that has far-reaching implications."

The research was led by a team of scientists from Spain's Institute of Marine Sciences and the Blas Cabrera Institute of Physical Chemistry, according to an announcement from the UK's University of East Anglia: Researchers have quantified for the first time the global emissions of a sulfur gas produced by marine life, revealing it cools the climate more than previously thought, especially over the Southern Ocean. The study, published in the journal Science Advances, shows that the oceans not only capture and redistribute the sun's heat, but produce gases that make particles with immediate climatic effects, for example through the brightening of clouds that reflect this heat.

It broadens the climatic impact of marine sulfur because it adds a new compound, methanethiol, that had previously gone unnoticed. Researchers only detected the gas recently, because it used to be notoriously hard to measure and earlier work focussed on warmer oceans, whereas the polar oceans are the emission hotspots...

Their findings represent a major advance on one of the most groundbreaking theories proposed 40 years ago about the role of the ocean in regulating the Earth's climate. This suggested that microscopic plankton living on the surface of the seas produce sulfur in the form of a gas, dimethyl sulphide, that once in the atmosphere, oxidizes and forms small particles called aerosols. Aerosols reflect part of the solar radiation back into space and therefore reduce the heat retained by the Earth. Their cooling effect is magnified when they become involved in making clouds, with an effect opposite to, but of the same magnitude as, that of the well-known warming greenhouse gases, such as carbon dioxide or methane. The researchers argue that this new work improves our understanding of how the climate of the planet is regulated by adding a previously overlooked component and illustrates the crucial importance of sulfur aerosols. They also highlight the magnitude of the impact of human activity on the climate and that the planet will continue to warm if no action is taken.
The article includes this quote from one of the study's lead authors (Dr. Charel Wohl from the university's Centre for Ocean and Atmospheric Sciences). "Climate models have greatly overestimated the solar radiation actually reaching the Southern Ocean, largely because they are not capable of correctly simulating clouds. The work done here partially closes the longstanding knowledge gap between models and observations."

And the university's announcement argues that "With this discovery, scientists can now represent the climate more accurately in models that are used to make predictions of +1.5 degrees C or +2 degrees C warming, a huge contribution to policy making."

Thanks to long-time Slashdot reader schwit1 for sharing the news.

Crypto entrepreneur Justin Sun consumed Maurizio Cattelan's "Comedian" artwork -- a banana taped to a wall -- during an event in Hong Kong on Friday, declaring "the real value is the concept itself." Sun, founder of cryptocurrency platform Tron, purchased the piece for $6.2 million at Sotheby's last week, significantly above its $1-1.5 million estimate.

The acquisition included only a certificate of authenticity and assembly instructions, not the physical banana or tape. The Chinese-born entrepreneur, who faces SEC charges over fraud and securities violations, made the payment in cryptocurrency.

Software company Deno Land has filed a petition with the U.S. Patent and Trademark Office to cancel Oracle's JavaScript trademark, citing trademark abandonment and fraud. The November 22 filing claims Oracle has not sold JavaScript products or services since acquiring the trademark through its 2009 Sun Microsystems purchase. The petition alleges Oracle committed fraud during its 2019 trademark renewal by submitting Node.js website screenshots without authorization.

The legal action follows a September open letter from JavaScript creator Brendan Eich, Node.js and Deno creator Ryan Dahl, and other prominent JavaScript developers urging Oracle to relinquish the trademark. The letter has garnered over 14,000 signatures.