South Korean researchers have developed a "morphing" wheel that can navigate stairs and obstacles up to 1.3 times its radius, potentially revolutionizing mobility devices and robotics.

The wheel, created by the Korea Institute of Machinery and Materials (KIMM), features a chain-based outer hoop and sensor-controlled spoke wires that adjust stiffness based on terrain. Inspired by water droplet mechanics, it transitions between solid and fluid states when encountering impediments.

Nvidia is ready to fully transition to open-source Linux GPU kernel drivers, starting with the R555 series and planning a complete shift with the R560 series. The open-source kernel modules will only be available for select newer GPUs, while older architectures like Maxwell, Pascal, and Volta must continue using proprietary drivers. TechSpot reports: According to Nvidia, the open-source GPU kernel modules have helped deliver "equivalent or better" application performance compared to its proprietary kernels. The company has also added new features like Heterogeneous Memory Management (HMM) support, confidential computing, and the coherent memory architectures of the Grace platform to its open-source kernels. [...] For compatible GPUs, the default version of the driver installed by all methods is switching from proprietary to open-source. However, users will have the ability to manually select the closed-source modules if they are still available for their platform.

Unfortunately, the open-source kernel modules are not available for GPUs from the older Maxwell, Pascal, and Volta architectures, meaning people still running a GTX 980 or GTX 1080 will have to continue using Nvidia's proprietary drivers. For mixed deployments with older and newer GPUs in the same system, Nvidia recommends continuing to use the proprietary driver for full compatibility. "Nvidia has moved most of its proprietary functions into a proprietary, closed-source firmware blob," adds Ars Technica's Kevin Purdy. "The parts of Nvidia's GPUs that interact with the broader Linux system are open, but the user-space drivers and firmware are none of your or the OSS community's business."

In a contract worth as much as $843 million, NASA announced today SpaceX has been selected to develop a vehicle that will de-orbit the International Space Station in 2030. "As the agency transitions to commercially owned space destinations closer to home, it is crucial to prepare for the safe and responsible deorbit of the International Space Station in a controlled manner after the end of its operational life in 2030," the U.S. space agency said in a statement. TechCrunch reports: Few details about the U.S. Deorbit Vehicle, as NASA calls the craft, have been released so far. However, NASA clarified that the vehicle will be different from SpaceX's Dragon capsule, which delivers cargo and crew to the station, and other vehicles that perform services for the agency. Unlike these vehicles, which are built and operated by SpaceX, NASA will take ownership of the U.S. Deorbit Vehicle post-development and operate it throughout its mission. Both the vehicle and the ISS will destructively break up as they reenter the atmosphere, and one of the big tasks ahead for SpaceX is to ensure that the station reenters in a way that endangers no populated areas. The launch contract for the U.S. Deorbit Vehicle will be announced separately.

NASA and its partners had been evaluating using a Russian Roscosmos Progress spacecraft to conduct the de-orbit mission, but studies indicated that a new spacecraft was needed for the de-orbit maneuver. The station's safe demise is a responsibility shared by the five space agencies that operate on the ISS -- NASA, the Canadian Space Agency, European Space Agency, Japan Aerospace Exploration Agency, and State Space Corporation Roscosmos -- but it is unclear whether this contract amount is being paid out by all countries.

Earlier this week the Washington Post reported that America's Defense department "is growing concerned that the United Launch Alliance, one of its key partners in launching national security satellites to space, will not be able to meet its needs to counter China and build its arsenal in orbit with a new rocket that ULA has been developing for years." In a letter sent Friday to the heads of Boeing's and Lockheed Martin's space divisions, Air Force Assistant Secretary Frank Calvelli used unusually blunt terms to say he was growing "concerned" with the development of the Vulcan rocket, which the Pentagon intends to use to launch critical national security payloads but which has been delayed for years. ULA, a joint venture of Boeing and Lockheed Martin, was formed nearly 20 years ago to provide the Defense Department with "assured access" to space. "I am growing concerned with ULA's ability to scale manufacturing of its Vulcan rocket and scale its launch cadence to meet our needs," he wrote in the letter, a copy of which was obtained by The Washington Post. "Currently there is military satellite capability sitting on the ground due to Vulcan delays...."

ULA originally won 60 percent of the Pentagon's national security payloads under the current contract, known as Phase 2. SpaceX won an award for the remaining 40 percent, but it has been flying its reusable Falcon 9 rocket at a much higher rate. ULA launched only three rockets last year, as it transitions to Vulcan; SpaceX launched nearly 100, mostly to put up its Starlink internet satellite constellation. Both are now competing for the next round of Pentagon contracts, a highly competitive procurement worth billions of dollars over several years. ULA is reportedly up for sale; Blue Origin is said to be one of the suitors...

In a statement to The Post, ULA said that its "factory and launch site expansions have been completed or are on track to support our customers' needs with nearly 30 launch vehicles in flow at the rocket factory in Decatur, Alabama." Last year, ULA CEO Tory Bruno said in an interview that the deal with Amazon would allow the company to increase its flight rate to 20 to 25 a year and that to meet that cadence it was hiring "several hundred" more employees. The more often Vulcan flies, he said, the more efficient the company would become. "Vulcan is much less expensive" than the Atlas V rocket that the ULA currently flies, Bruno said, adding that ULA intends to eventually reuse the engines. "As the flight rate goes up, there's economies of scale, so it gets cheaper over time. And of course, you're introducing reusability, so it's cheaper. It's just getting more and more competitive."
The article also notes that years ago ULA "decided to eventually retire its workhorse Atlas V rocket after concerns within the Pentagon and Congress that it relied on a Russian-made engine, the RD-180. In 2014, the company entered into a partnership with Jeff Bezos' Blue Origin to provide its BE-4 engines for use on Vulcan. However, the delivery of those engines was delayed for years — one of the reasons Vulcan's first flight didn't take place until earlier this year."

The article says Cavelli's letter cited the Pentagon's need to move quickly as adversaries build capabilities in space, noting "counterspace threats" and adding that "our adversaries would seek to deny us the advantage we get from space during a potential conflict."

"The United States continues to face an unprecedented strategic competitor in China, and our space environment continues to become more contested, congested and competitive."

"We're migrating domains in batches..." announced web-hosting company Squarespace earlier this month.

"Squarespace has entered into an agreement to become the new home for Google Domains customers. When your domain transitions from Google to Squarespace, you'll become a Squarespace customer and manage your domain through an account with us."

Slashdot reader shortyadamk shares an email sent today to a Google Domains customer: "Today your domain, xyz.com, migrated from Google Domains to Squarespace Domains.

"Your WHOIS contact details and billing information (if applicable) were migrated to Squarespace. Your DNS configuration remains unchanged.

"Your migrated domain will continue to work with Google Services such as Google Search Console. To support this, your account now has a domain verification record — one corresponding to each Google account that currently has access to the domain."

"In less than 15 years, battery costs have fallen by more than 90%," according to a new report from the International Energy Agency, "one of the fastest declines ever seen in clean energy technologies."

And it's expected to get even cheaper, reports Reuters: An expected sharp fall in battery costs for energy storage in coming years will accelerate the shift to renewable energy from fossil fuels, the International Energy Agency (IEA) said on Thursday... The total capital costs of battery storage are due to tumble by up to 40% by 2030, the Paris-based watchdog said in its Batteries and Secure Energy Transitions report.

"The combination of solar PV (photovoltaic) and batteries is today competitive with new coal plants in India," said IEA Executive Director Fatih Birol. "And just in the next few years, it will be cheaper than new coal in China and gas-fired power in the United States. Batteries are changing the game before our eyes." [...] The global market for energy storage doubled last year to over 90 gigawatt-hours (GWh), the report said...

The slide in battery costs will also help provide electricity to millions of people without access, cutting by nearly half the average electricity costs of mini-grids with solar PV coupled with batteries by 2030, the IEA said.
The Los Angeles Times notes one place adopting the tech is California: Standing in the middle of a solar farm in Yolo County, [California governor] Newsom announced the state now had battery storage systems with the capacity of more than 10,000 megawatts — about 20% of the 52,000 megawatts the state says is needed to meet its climate goals.
Although Newsom acknowledged it isn't yet enough to eliminate blackouts...

Disney is outsourcing its DVD and Blu-ray disc business to Sony Pictures Entertainment. Variety reports: As part of the deal, Sony will market, sell and distribute all Disney's new releases and catalog titles on physical media to consumers through retailers and distributors in the U.S. and Canada. Disney will continue to manage its own digital media, like premium video-on-demand. It's unclear if this will result in layoffs at Disney. However, the studio is expected to conduct an internal assessment across all business functions that support physical entertainment amid the transition to Sony, according to sources familiar with the agreement.

According to Disney, the licensing model allows the studio to continue to offer films and TV shows through physical retailers and to respond to consumer demand more efficiently. The company said the shift is consistent with strategies it's implemented companywide, as well as transitions in other markets.

An anonymous Slashdot reader shared this report from SiliconANGLE: The Rust Foundation, which supports the development of the popular open-source Rust programming language... shared that Google LLC had made a $1 million contribution specifically earmarked for a C++/Rust interoperability effort known as the "Interop Initiative." The initiative aims to foster seamless integration between Rust and the widely used C++ programming language, addressing one of the significant barriers to Rust's adoption in legacy systems entrenched in C++ code.

Rust has the ability to prevent common memory errors that plague C++ programs and offers a path toward more secure and reliable software systems. However, transitioning from C++ to Rust presents notable challenges, particularly for organizations with extensive C++ codebases. The Interop Initiative seeks to mitigate these challenges by facilitating smoother transitions and enabling organizations to leverage Rust's advantages without completely overhauling their existing systems.

As part of the initiative, the Rust Foundation will collaborate closely with the Rust Project Leadership Council, stakeholders and member organizations to develop a comprehensive scope of work. The collaborative effort will focus on enhancing build system integration, exploring artificial intelligence-assisted code conversion techniques and expanding upon existing interoperability frameworks. By addressing these strategic areas, the initiative aims to accelerate the adoption of Rust across the software industry and hence contribute to advancing memory safety and reducing the prevalence of software vulnerabilities.
A post on Google's security blog says they're excited to collaborate "to ensure that any additions made are suitable and address the challenges of Rust adoption that projects using C++ face. Improving memory safety across the software industry is one of the key technology challenges of our time, and we invite others across the community and industry to join us in working together to secure the open source ecosystem for everyone."

The blog post also includes this quote from Google's VP of engineering, Android security and privacy. "Based on historical vulnerability density statistics, Rust has proactively prevented hundreds of vulnerabilities from impacting the Android ecosystem. This investment aims to expand the adoption of Rust across various components of the platform."

The Register adds: Lars Bergstrom, director of Android platform tools and libraries and chair of the Rust Foundation Board, announced the grant and said that the funding will "improve the ability of Rust code to interoperate with existing legacy C++ codebases.... Integrating Rust today is possible where there is a fallback C API, but for high-performance and high-fidelity interoperability, improving the ability to work directly with C++ code is the single biggest initiative that will further the ability to adopt Rust...."

According to Bergstrom, Google's most significant increase in the use of Rust has occurred in Android, where interoperability started receiving attention in 2021, although Rust is also being deployed elsewhere.... Bergstrom said that as of mid-2023, Google had more than 1,000 developers who had committed Rust code, adding that the ad giant recently released the training material it uses. "We also have a team working on building out interoperability," he added. "We hope that this team's work on addressing challenges specific to Google's codebases will complement the industry-wide investments from this new grant we've provided to the Rust Foundation."

Google's grant matches a $1 million grant last November from Microsoft, which also committed $10 million in internal investment to make Rust a "first-class language in our engineering systems." The Google-bucks are expected to fund further interoperability efforts, along the lines of KDAB's bidirectional Rust and C++ bindings with Qt.

It's "a free and open-source, software-defined storage platform," according to Wikipedia, providing object storage, block storage, and file storage "built on a common distributed cluster foundation". The charter advisory board for Ceph included people from Canonical, CERN, Cisco, Fujitsu, Intel, Red Hat, SanDisk, and SUSE.

And Nite_Hawk (Slashdot reader #1,304) is one of its core engineers — a former Red Hat principal software engineer named Mark Nelson. (He's now leading R&D for a small cloud systems company called Clyso that provides Ceph consulting.) And he's returned to Slashdot to share a blog post describing "a journey to 1 TiB/s". This gnarly tale-from-Production starts while assisting Clyso with "a fairly hip and cutting edge company that wanted to transition their HDD-backed Ceph cluster to a 10 petabyte NVMe deployment" using object-based storage devices [or OSDs]...) I can't believe they figured it out first. That was the thought going through my head back in mid-December after several weeks of 12-hour days debugging why this cluster was slow... Half-forgotten superstitions from the 90s about appeasing SCSI gods flitted through my consciousness...

Ultimately they decided to go with a Dell architecture we designed, which quoted at roughly 13% cheaper than the original configuration despite having several key advantages. The new configuration has less memory per OSD (still comfortably 12GiB each), but faster memory throughput. It also provides more aggregate CPU resources, significantly more aggregate network throughput, a simpler single-socket configuration, and utilizes the newest generation of AMD processors and DDR5 RAM. By employing smaller nodes, we halved the impact of a node failure on cluster recovery....

The initial single-OSD test looked fantastic for large reads and writes and showed nearly the same throughput we saw when running FIO tests directly against the drives. As soon as we ran the 8-OSD test, however, we observed a performance drop. Subsequent single-OSD tests continued to perform poorly until several hours later when they recovered. So long as a multi-OSD test was not introduced, performance remained high. Confusingly, we were unable to invoke the same behavior when running FIO tests directly against the drives. Just as confusing, we saw that during the 8 OSD test, a single OSD would use significantly more CPU than the others. A wallclock profile of the OSD under load showed significant time spent in io_submit, which is what we typically see when the kernel starts blocking because a drive's queue becomes full...

For over a week, we looked at everything from bios settings, NVMe multipath, low-level NVMe debugging, changing kernel/Ubuntu versions, and checking every single kernel, OS, and Ceph setting we could think of. None these things fully resolved the issue. We even performed blktrace and iowatcher analysis during "good" and "bad" single OSD tests, and could directly observe the slow IO completion behavior. At this point, we started getting the hardware vendors involved. Ultimately it turned out to be unnecessary. There was one minor, and two major fixes that got things back on track.
It's a long blog post, but here's where it ends up:

• Fix One: "Ceph is incredibly sensitive to latency introduced by CPU c-state transitions. A quick check of the bios on these nodes showed that they weren't running in maximum performance mode which disables c-states."

• Fix Two: [A very clever engineer working for the customer] "ran a perf profile during a bad run and made a very astute discovery: A huge amount of time is spent in the kernel contending on a spin lock while updating the IOMMU mappings. He disabled IOMMU in the kernel and immediately saw a huge increase in performance during the 8-node tests." In a comment below, Nelson adds that "We've never seen the IOMMU issue before with Ceph... I'm hoping we can work with the vendors to understand better what's going on and get it fixed without having to completely disable IOMMU."

• Fix Three: "We were not, in fact, building RocksDB with the correct compile flags... It turns out that Canonical fixed this for their own builds as did Gentoo after seeing the note I wrote in do_cmake.sh over 6 years ago... With the issue understood, we built custom 17.2.7 packages with a fix in place. Compaction time dropped by around 3X and 4K random write performance doubled."

The story has a happy ending, with performance testing eventually showing data being read at 635 GiB/s — and a colleague daring them to attempt 1 TiB/s. They built a new testing configuration targeting 63 nodes — achieving 950GiB/s — then tried some more performance optimizations...

Adobe has introduced new AI features to Premiere Pro to streamline audio editing workflows. Updates in the public beta launching Tuesday include interactive fade handles for quicker custom audio transitions, and enhanced speech correction tools to improve dialogue quality. Other additions are AI-powered tagging that automatically identifies and labels audio clips by category, reducing time spent manually locating editing tools. Redesigned clip badges also aim to speed up identifying and applying audio effects. The updates ultimately target reducing repetitive editing tasks and giving users easier access to common audio editing functions directly in Premiere Pro's main timeline interface. The Verge adds: Additional quality-of-life improvements being added to the Premiere Pro beta include having waveforms (the graphical representation of sound patterns) automatically resize when track height is adjusted in the editing timeline, and updated colors for clips that make them easier to see. These should grant editors more control over how their timeline can be visually customized to achieve a layout that best complements their personal workflow.

America's Environmental Protection Agency "has signed off on a California oil company's plans to permanently store carbon emissions deep underground to combat global warming," reports the Los Angeles Times: California Resources Corp., the state's largest oil and gas company, applied for permission to send 1.46 million metric tons of carbon dioxide each year into the Elk Hills oil field, a depleted oil reservoir about 25 miles outside of downtown Bakersfield. The emissions would be collected from several industrial sources nearby, compressed into a liquid-like state and injected into porous rock more than one mile underground.

Although this technique has never been performed on a large scale in California, the state's climate plan calls for these operations to be widely deployed across the Central Valley to reduce carbon emissions from industrial facilities. The EPA issued a draft permit for the California Resources Corp. project, which is poised to be finalized in March following public comments. As California transitions away from oil production, a new business model for fossil fuel companies has emerged: carbon management. Oil companies have heavily invested in transforming their vast network of exhausted oil reservoirs into a long-term storage sites for planet-warming gases, including California Resources Corp., the largest nongovernmental owner of mineral rights in California...

[Environmentalists] say that the transportation and injection of CO2 — an asphyxiating gas that displaces oxygen — could lead to dangerous leaks. Nationwide, there have been at least 25 carbon dioxide pipeline leaks between 2002 and 2021, according to the U.S. Department of Transportation. Perhaps the most notable incident occurred in Satartia, Miss., in 2020 when a CO2 pipeline ruptured following heavy rains. The leak led to the hospitalization of 45 people and the evacuation of 200 residents... Under the EPA draft permit, California Resources Corp. must take a number of steps to mitigate these risks. The company must plug 157 wells to ensure the CO2 remains underground, monitor the injection site for leaks and obtain a $33-million insurance policy.
Canadian-based Brookfield Corporation also invested $500 million, according to the article, with California Resources Corp. seeking permits for five projects — more than any company in the nation. "It's kind of reversing the role, if you will," says their chief sustainability officer. "Instead of taking oil and gas out, we're putting carbon in."

Meanwhile, there's applications for "about a dozen" more projects in California's Central Valley that could store millions of tons of carbon emissions in old oil and gas fields — and California Resources Corp says greater Los Angeles is also "being evaluated" as a potential storage site.

Mark Gurman reports via Bloomberg: In one of Apple's biggest board shake-ups in years (Warning: source may be paywalled; alternative source), longtime directors Al Gore and James Bell will be retiring from the company, with former Aerospace Corp. Chief Executive Officer Wanda Austin coming aboard. The company made the announcement Thursday, citing a policy of directors not standing for reelection after the age of 75. Bell, a former Boeing Co. executive, joined the Apple board in 2015, while former US Vice President Gore has been a director for more than two decades. Both men are 75.

The upheaval is unusual for Apple's board, which rarely has more than one retirement at a time. Gore was the longest-serving member -- having joined in 2003, when co-founder Steve Jobs was CEO and the iPhone didn't yet exist. "Al has contributed an incredible amount to our work -- from his unconditional support for protecting our users' privacy, to his incomparable knowledge of environment and climate issues," Apple CEO Tim Cook said in a statement. "James's dedication has been extraordinary, and we're thankful for the important perspectives and deep expertise he's offered on audit, finance, and so much more over the years."

Austin, the new nominee, has a significant track record of "advancing innovation and shaping corporate strategy," Apple said. She has long been a major proponent of US space exploration efforts, though that's not an area that Apple is directly involved in. She will be up for election at the company's annual shareholder meeting on Feb. 28. In spite of the age policy, another director, Ronald Sugar, is turning 76 this year and not slated to leave the board. Apple said that Sugar is remaining "in consideration of the significant recent transitions in board composition and the value of retaining directors who have developed deep insights into the company during their tenure." Given Apple's rationale for retaining Sugar, it's unclear if the policy will apply to Chairman Arthur Levinson, who turns 75 next year.

Imported raw materials such as steel and cement will incur a new carbon tax from 2027 under UK plans designed to support domestic producers and reduce emissions, but the government is facing criticism for not moving fast enough. From a report: The Treasury said the tax would help address the phenomenon of "carbon leakage," in which UK manufacturers are undercut on price by foreign rivals whose governments do not impose levies on businesses that emit a lot of carbon. The result is that emissions are simply displaced to other countries, while greener UK producers lose out because they have to pay carbon-related charges. The chancellor, Jeremy Hunt, said: "This levy will make sure carbon intensive products from overseas -- like steel and ceramics -- face a comparable carbon price to those produced in the UK, so that our decarbonisation efforts translate into reductions in global emissions. "This should give UK industry the confidence to invest in decarbonisation as the world transitions to net zero."

Three days after Amazon announced its AI chatbot Q, some employees are sounding alarms about accuracy and privacy issues. From a report: Q is "experiencing severe hallucinations and leaking confidential data," including the location of AWS data centers, internal discount programs, and unreleased features, according to leaked documents obtained by Platformer. An employee marked the incident as "sev 2," meaning an incident bad enough to warrant paging engineers at night and make them work through the weekend to fix it.

[...] In a statement, Amazon played down the significance of the employee discussions. "Some employees are sharing feedback through internal channels and ticketing systems, which is standard practice at Amazon," a spokesperson said. "No security issue was identified as a result of that feedback. We appreciate all of the feedback we've already received and will continue to tune Q as it transitions from being a product in preview to being generally available."

Amiga Trombone shares a report from Insider: With signs of growing inventory and slowing sales, auto industry executives admitted this week that their ambitious electric vehicle plans are in jeopardy, at least in the near term. Several C-Suite leaders at some of the biggest carmakers voiced fresh unease about the electric car market's growth as concerns over the viability of these vehicles put their multi-billion-dollar electrification strategies at risk. Among those hand-wringing is GM's Mary Barra, historically one of the automotive industry's most bullish CEOs on the future of electric vehicles. But this week on GM's third-quarter earnings call, Barra and GM struck a more sober tone. The company announced with its quarterly results that it's abandoning its targets to build 100,000 EVs in the second half of this year and another 400,000 by the first six months of 2024. GM doesn't know when it will hit those targets.

While GM's about-face was somewhat of a surprise to investors, the Detroit car company is not alone in this new view of the EV future. Even Tesla's Elon Musk warned on a recent earnings call that economic concerns would lead to waning vehicle demand, even for the long-time EV market leader. Meanwhile, Mercedes-Benz -- which is having to discount its EVs by several thousand dollars just to get them in customers' hands -- isn't mincing words about the state of the EV market. "This is a pretty brutal space," CFO Harald Wilhelm said on an analyst call. "I can hardly imagine the current status quo is fully sustainable for everybody." "It's clear that we're dealing with a lot of near-term uncertainty," said Barra. "The transition to EVs, that will have ups and downs."
Toyota Chairman Akio Toyoda said that people are "finally seeing reality" regarding EVs. "I have continued to say what I see as reality," Toyoda, who recently stepped down as Toyota's CEO, said. "There are many ways to climb the mountain that is achieving carbon neutrality," such as hybrids and plug-in hybrids which have long made up a significant share of Toyota's EV sales.

"The reason (hybrids) are so powerful is because they fit the needs of so many customers," Toyota North America's vice president of sales Bob Carter told CNBC last year. "The demand for hybrid has been strong. We expect it to continue to grow as the entire industry transitions over to electrification later this decade."

Umar Shakir reports via The Verge: Amazon is fulfilling a small part of its promise to switch from using plastic bubble mailers and air pillows to all recyclable paper packaging for its shipments. The company announced that it has outfitted one facility in Euclid, Ohio, with an upgraded packaging machine that can automatically fold custom-fit boxes to wrap some products, use paper mailers for small items, and slide in paper fillers instead of plastic ones in standard boxes.

As Amazon transitions over to curbside recyclable packaging, it will "reduce the company's plastic waste and the amount of plastic pollution that can reach the seas," says Matt Littlejohn, senior vice president of Oceana, a conservation organization. However, Littlejohn questions Amazon's commitment to end plastic use in the US, its largest market, compared to the commitments it made for the UK, Germany, and other markets. Amazon says it'll be a "multiyear effort" to move US warehouses to recyclable paper. "Unfortunately, Amazon, in this announcement, did not make a clear, quantifiable, and time-bound commitment, so it is unclear when, where, and how much real plastic reduction there will be," Littlejohn says.

An anonymous reader quotes a report from Phys.Org: The sea ice around Antarctica likely had a record low surface area when it was at its maximum size this winter, a preliminary US analysis of satellite data showed Monday. As the southern hemisphere transitions into spring, the US National Snow and Ice Data Center (NSIDC) said in a statement that Antarctic sea ice had only reached a maximum size of 16.96 million square kilometers (6.55 million square miles) this year, on September 10. The ice pack typically reaches its largest size during the colder winter months, so the September 10 reading will likely remain this year's maximum.

"This is the lowest sea ice maximum in the 1979 to 2023 sea ice record by a wide margin," said the NSIDC, a government-supported program at the University of Colorado at Boulder. At its high-point this year, the sea ice was 1.03 million square kilometers smaller than the previous record, roughly the size of Texas and California combined. "It's a record-smashing sea ice low in the Antarctic," said NSIDC scientist Walt Meier. He added that the growth in sea ice appeared "low around nearly the whole continent as opposed to any one region."

How many smartphone brands do you think have left the market since 2017? The likes of LG probably come to mind, then there are the many local, lesser-known brands. Maybe fifty, or one hundred? The actual figure is, astoundingly, nearly 500. TechSpot: Counterpoint Research's analysis shows that at its peak in 2017, there were more than 700 smartphone brands contributing to the 1.5 billion units sold annually. In 2023, that number is down by a third to almost 250. Nearly all of those brands that have shuttered over the last five years were local ones found in locations such as India, the Middle East, Africa, China, Japan, and South Korea. The number of global brands such as Samsung has remained consistent at over 30.

Counterpoint Research highlights several reasons behind the shrinking number of brands over the last seven years. The pandemic and component shortages that began in 2020 had a massive impact, while the global economic slowdown following Russia's invasion of Ukraine in 2022 has caused many smaller smartphone companies to shutter. The local brands have also been dealing with other factors killing off their businesses. More people are holding onto their devices for longer before upgrading, cheaper phones are improving in quality all the time, there's a maturing user base, we've seen technology transitions such as that from 4G to 5G, and a handful of big brands are holding on to more of the market.

"Earlier this year, after 15 years of searching, scientists finally heard the background hum of low-frequency gravitational waves that fill our universe," writes Space.com.

"Now, the hard work of searching for the source of these ripples in spacetime can begin." Currently, the primary suspects in this case are pairings of supermassive black holes with masses millions, or even billions, of times that of the sun. However, that doesn't mean that there isn't room for a few unusual suspects, which could potentially point us toward new physics....

[G]ravitational waves detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO) express wavelengths that are thousands of miles (or km) in length and hold frequencies of milliseconds to seconds. The new gravitational waves detected by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), by contrast, have wavelengths on a scale of trillions of miles (or km). This is similar to the distance between the sun and its neighboring star, Proxima Centauri, a staggering 20 light-years in length. Plus, NANOGrav gravitational wavelengths have frequencies on scales of years instead of mere seconds. Practically, what this means is scientists need to build over 15 years of NANOGrav data to confirm a low-frequency gravitational wave detection.

But, when it happens, it's worth the wait. That's because these results have the capacity to point us toward new information about our universe... "The detection of low-frequency gravitational waves means they're from very different sources to the LIGO and Virgo sources, which are stellar mass black holes and neutron star mergers," Scott Ransom, a National Radio Astronomy Observatory astronomer and former chair of NANOGrav, told Space.com... Ransom is part of a collaboration of researchers that believe low-frequency gravitational waves, including those detected by NANOGrav, may originate from a pretty incredible source. They could come from, the team argues, hundreds of thousands of supermassive black hole pairings that, over the 13.8-billion-year course of cosmic history, came close enough together that they've merged...

"For many decades, theorists have hypothesized that supermassive black hole binaries should produce a signal with characteristics just like what NANOGrav and other pulsar timing arrays are seeing," Luke Zoltan Kelly, a Northwestern University theoretical astrophysicist and NANOGrav researcher, told Space.com. "For most of the community, supermassive black hole binaries are a natural best guess for what's producing the gravitational wave background...." Zoltan Kelley pointed out to Space.com that besides binaries, there are a number of new models in cosmology and in particle physics that, under the right circumstances, could also produce a similar gravitational wave background to that detected by NANOGrav. For example, axion or 'fuzzy' dark matter, cosmic strings, inflationary phase transitions, and many others," the Northwestern astrophysicist said.

"What's really exciting about these possibilities is that each of these models is an attempt to explain some of the biggest current mysteries of our universe."

Plexamp, the music player originally incubated by the Labs division of media company Plex, is now free, the company announced today. From a report: The project was first launched in 2017 as Plex's own spin on the classic Winamp media player app, offering visualizations to accompany your tunes, tools for programming mixes, and more recently, a ChatGPT-powered "Sonic Sage" feature that builds unique playlists from users' music libraries. However, after its expansion from desktop to mobile, Plexamp was only available to subscribers.

Now, Plex says the Plexamp app will become free, allowing users to play tracks from their own library or the TIDAL music streaming service with high-quality audio and support for lossless audio. The app also includes gapless playback, loudness leveling, and smooth transitions between tracks, among other things. In addition to Library Radio, a feature used to rediscover your music, users can create playlists with Plexamp to match their current mood: like "brooding, cathartic, confident, intense, playful, poignant, swaggering, and wistful," the company says.