Celsius Network, one of the biggest crypto lenders, told customers Sunday evening that it is pausing withdrawals, swap, and transfers between accounts in a move that has sparked discussions and prompted the price of the firm's token to take a 60% tumble in the past one hour to as low as 19 cents. From a report: "We are taking this action today to put Celsius in a better position to honor, over time, its withdrawal obligations," wrote Celsius, which counts stablecoin-issuer Tether International, growth equity fund WestCap Group and Canadian pension fund Caisse de Depot et Placement du Quebec among its investors. [...] Celsius, which was valued at $3.25 billion when it extended its "oversubscribed" Series B financing round to $750 million in November, allows users to deposit their Bitcoin, Ethereum and Tether and receive weekly interest payments. Depending on the time horizon and the token, the platform offers as much as 18% interest a year. On its website, Celsius says 1.7 million people call "Celsius their home for crypto."

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Shutterfly recently moved its photo libraries to Amazon's cloud division — and became one of the companies that stopped using Oracle for it database management, Bloomberg reports: Businesses are opting to align with newer providers such as MongoDB Inc., Databricks Inc. and Snowflake Inc. instead of Oracle, the sector stalwart, as a result of changes across the enterprise technology landscape. The move to the cloud is challenging the systems of the past. Newer providers are also making it much easier to adopt their technology directly, alleviating the need for corporate purchasers to negotiate large contracts with salespeople and allowing end users to more easily pick their own tools. Offerings from the newer software makers can also be deployed without large teams of database administrators that are typically needed to support Oracle's products, a cost-saver for organizations that would otherwise have to fight against other businesses for these in-demand engineers. The evidence of the shift is widespread. JPMorgan Chase & Co. chose Cockroach Labs Inc. as the database vendor to support its new retail banking application in Europe. Nasdaq Inc. is working with closely held Databricks and Amazon.com Inc.'s Amazon Web Services, among others, in its quest to upgrade from on-premises Oracle data repositories. Alongside AWS, database products from rival cloud vendors Microsoft Corp. and Alphabet Inc.'s Google Cloud are also growing quickly. And many businesses, like JetBlue Airways Corp. and Automatic Data Processing Inc., are tapping Snowflake to help store and analyze corporate data to power sales dashboards, among other uses.... Collectively, the initiatives are just a small fragment of the estimated $155 billion database market. But it's evidence of a tectonic shift happening within the industry, one that is threatening the leadership status Oracle cultivated over the past 43 years, ever since co-founder Larry Ellison and his team brought to market the first relational database, or one in which information was organized in tables that could be more easily accessed, manipulated and analyzed.... Oracle doesn't disclose financial results specifically for its database business. Much of that revenue comes from providing support and maintenance for existing customers versus new sales. But Oracle's influence is slowly fading. While it owned an estimated 27% of the database market in 2019, that fell to 24% in 2020, per Gartner. In the same time frame, Amazon went from 17% market share to almost 21%. Oracle declined to comment for this story. Rivals are growing quickly. At MongoDB, for example, sales rose 57% to $285 million in the most recent quarter. Those results, analysts and company executives say, indicate businesses are using MongoDB for increasingly larger projects.... Oracle makes a significant portion of its revenue on existing customers. Every few years, when companies have to renew their contracts, Oracle can raise prices for maintenance and support — a business with margins hovering around 95%, according to Craig Guarente, a 16-year veteran of Oracle who is now CEO and co-founder of consulting firm Palisade Compliance. "The entire profit of the company comes from Oracle database maintenance," he said. With each contract negotiation, "you go from paying $20 million a year, to $30 million a year, to paying $50 million a year."

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Jakub Kaminski is a robotics engineering graduate student at Worcester Polytechnic Institute in Massachusetts. With some volunteers he spent two months designing the perfect tourniquet for the battlefields of Ukraine, designed meet the highest medical standards — and then uploaded it to 3DPrintingForUkraine.com. Now in less than 8 weeks "around 120 individuals and companies worldwide with 3D printers have accessed the design," reports the Washington Post. [Alternate URL here] "Together, they have made roughly 5,000 reusable tourniquets that are bound for Ukraine, where they will be stitched and sent off to the battlefield, Kaminski said..." Using digital files, people are designing supplies such as bandages, tourniquets, splints and add-ons to AK-47 guns.... [In February, as Russia began its invasion] people in the 3D-printing community talked with Ukrainian military officials, hospital administrators and charity organizations, trying to gauge what they could print quickly that would be most helpful. Tourniquets and bandages were repeated requests. Mykhailo Shulhan, the chief operating officer of a Ukrainian 3D-printing company in Lviv, said that as soon as the invasion began, he started researching how 3D printers helped in other conflicts.... These days, his company, 3D Tech Addtive, develops and prints an array of weapons accessories: AK-47 holsters so soldiers have a way to rest their guns; bullet magazines since empty cartridges often get thrown away instead of reused; carrying bags for grenades; and most recently, anti-reflective lenses for sniper scopes to reduce glare and prevent Ukrainian snipers from being seen. (All together, they have provided over 5,000 components to the front lines, Shulhan estimated....) While most 3D printers create supplies to stop death or ease fighting conditions, others are focusing on rehabilitating soldiers. Brett Carey, a physical therapist in Hawaii, designs 3D printed splints that can be sent to fighters... Carey has created two digital designs for splints that have been uploaded online and 3D printed over 1,500 times. If injuries are advanced, he has people send him images of their injuries using EM3D — a 3D imaging app — which allows him to make a custom made splint which is then shipped to Ukraine... The Post also got this quote from the robotics engineering student whose team designed the tourniquets. "It's a beautiful thing," he said. "If you make people in Ukraine feel better, and enable people to help. ... This is something really special."

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The state of Utah has the largest saltwater lake in the entire western hemisphere — but it's like the tide went out and never came back, warns the New York Times. [Alternate URL here.] "If the Great Salt Lake, which has already shrunk by two-thirds, continues to dry up, here's what's in store." The lake's flies and brine shrimp would die off — scientists warn it could start as soon as this summer — threatening the 10 million migratory birds that stop at the lake annually to feed on the tiny creatures. Ski conditions at the resorts above Salt Lake City, a vital source of revenue, would deteriorate. The lucrative extraction of magnesium and other minerals from the lake could stop. Most alarming, the air surrounding Salt Lake City would occasionally turn poisonous. The lake bed contains high levels of arsenic and as more of it becomes exposed, wind storms carry that arsenic into the lungs of nearby residents, who make up three-quarters of Utah's population. "We have this potential environmental nuclear bomb that's going to go off if we don't take some pretty dramatic action," said Joel Ferry, a Republican state lawmaker and rancher who lives on the north side of the lake. As climate change continues to cause record-breaking drought, there are no easy solutions. Saving the Great Salt Lake would require letting more snowmelt from the mountains flow to the lake, which means less water for residents and farmers. That would threaten the region's breakneck population growth and high-value agriculture — something state leaders seem reluctant to do. Utah's dilemma raises a core question as the country heats up: How quickly are Americans willing to adapt to the effects of climate change, even as those effects become urgent, obvious, and potentially catastrophic...? Until recently, that hydrological system existed in a delicate balance... [T]wo changes are throwing that system out of balance. One is explosive population growth, diverting more water from those rivers before they reach the lake. The other shift is climate change, according to Robert Gillies, a professor at Utah State University and Utah's state climatologist. Higher temperatures cause more snowpack to transform to water vapor, which then escapes into the atmosphere, rather than turning to liquid and running into rivers. More heat also means greater demand for water for lawns or crops, further reducing the amount that reaches the lake.... The lake's surface area, which covered about 3,300 square miles in the late 1980s, has since shrunk to less than 1,000, according to the U.S. Geological Survey.

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"Two CEOs on a podcast casually proposed a shareable database of worker performance that would follow them between companies, forever, and encouraged listeners to create one," writes Slashdot reader merauder128 , summarizing a recent article on Vice. "HR professionals say it's a terrible idea." Vice points out the podcast both the host and guest were CEOs of "data harvesters that package and resell data to other parties." Through one lens, it was a mundane musing between two CEOs of data companies talking about how awesome it would be to have more data on something. But in the context of experiments occurring in the tech industry around hiring practices, it was two influential CEOs encouraging other entrepreneurs to create a business that would be an absolute nightmare for workers, a type of credit score for workers that could be a permanent HR file that follows workers from one job to the next, and where a worker who struggles at one job may have trouble getting another.... It is also in line with a growing trend among tech companies that, spurred by work-from-home and hybrid work, are increasingly interested in quantifying employee performance. The most prominent example is Coinbase introducing an app so employees can constantly rate each other's performances, a scenario even the normally cheery TechCrunch said "sounds rough." Over the last several years, there has been a boom in employee management software solutions such as Workday, Lattice, CultureAmp that are used across thousands of companies for performance reviews and other sensitive HR tasks. Technologically speaking, what Youakim and Hoffman are talking about is opening those confidential resources — or some condensed version of them that can be easily digested and analyzed — up to everyone. None of these HR software companies have indicated that they have any intention of doing this. The article warns that experts who have studied hiring extensively believe a permanent database database "would allow this complete, random mess to follow workers their entire careers, affecting their job prospects, earning potential, and their broader lives." And the article summarizes a reaction to the idea from John Hausknecht, a professor of human resources at Cornell University. "It assumes people don't change, that jobs require similar attributes, that a person's experience at one company is relevant to another where they will be in a different environment with a different manager and different company culture.... "Or, to put it a different way, 'Just because we can track it, collect it, and ask about it,' Hausknecht said, 'doesn't necessarily mean we should.'"

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"All appeared to be going smoothly," reports CBS News, "when, about a minute before the second stage engine was expected to shut down, an onboard 'rocketcam' showed a flash in the engine's exhaust plume. "The camera view them showed what appeared to be a tumble before video from the rocket cut off...." California-based Astra on Sunday launched two shoebox-size NASA satellites from Cape Canaveral in a modest mission to improve hurricane forecasts, but the second stage of the company's low-cost booster malfunctioned before reaching orbit and the payloads were lost. "The upper stage shut down early and we did not deliver the payloads to orbit," Astra tweeted. "We have shared our regrets with @NASA and the payload team. More information will be provided after we complete a full data analysis." It was the seventh launch of Astra's small "Venture-class" rocket and the company's fifth failure. Sunday's launch was the first of three planned for NASA to launch six small CubeSats, two at a time, into three orbital planes. Given the somewhat risky nature of relying on tiny shoebox-size CubeSats and a rocket with a very short track record, the $40 million project requires just four satellites and two successful launches to meet mission objectives. The NASA contract calls for the final two flights by the end of July. Whether Astra can meet that schedule given Sunday's failure is not yet known. "Although today's launch with @Astra did not go as planned, the mission offered a great opportunity for new science and launch capabilities," tweeted NASA science chief Thomas Zurbuchen.... After Sunday's failure, he tweeted: "Even though we are disappointed right now, we know: There is value in taking risks in our overall NASA Science portfolio because innovation is required for us to lead."

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The New York Times tells the story of crop circles, "the mysterious patterns that regularly intrigued people around the world in the 1980s and '90s, prompting speculation about alien visitors, ancient spiritual forces, weather anomalies, secret weapons tests and other theories." They call the phenomenon "a reminder that even before the era of social media and the internet, hoaxes were able to spread virally around the world and true believers could cling stubbornly to conspiracy theories despite a lack of evidence — or even the existence of evidence to the contrary." In the case of crop circles, the most important contradictory evidence emerged on Sept. 9, 1991, when the British newspaper Today ran a front-page story under the headline "Men who conned the world," revealing that two mischievous friends from Southampton had secretly made more than 200 of the patterns over the previous decade. Doug Bower, then 67, and his friend Dave Chorley, 62, admitted to a reporter, Graham Brough, that in the late 1970s they had begun using planks of wood with ropes attached to each end to stamp circles in crops by holding the ropes in their hands and pressing the planks underfoot. They had then watched with amusement as their anonymous antics eventually attracted media attention and began being copied by imitators around the world... The real-life pranksters phoned the newspaper to come clean, according to Mr. Brough, now 62, who says he verified their claims by checking an archive of more than 200 crop circle designs stored in a shed behind Mr. Bower's home. The designs were clearly aged and matched the patterns they had made over the years, Mr. Brough said. "I spent a week getting them to show me how they had done it all, and I have never laughed as much in my life," he recalled. "The prevailing wisdom at the time was that aliens were about to land any day, but it had all been kicked off by these two blokes who'd have a couple of pints at their favorite pub and then head out into the night to have a bit of fun...." "The people who wanted to keep believing in aliens and everything else just ignored the evidence, no matter how obvious it was," said Rob Irving, who had begun emulating the two pranksters' work in 1989 and befriended them after they went public.... "The power of the art came from the mystery, and Doug forever regretted coming forward because the mystery was lost." A professor of psychology at the University of Bristol in Britain explains to the Times the thought process of believers (which he says predated the internet). "instead of admitting that we live in a world we can't control, they take comfort from believing that there is agency involved and someone who can be blamed." The Times finds an example in a crop circle proponent who now believes, to this day, that even if crop circles are all man-made, the people making them have unwittingly "been prompted by an independent nonhuman mind." Although after a new crop circle appeared, the Times obtained an alternative perspective — from a neighboring farmer. "It is just so irresponsible to be trespassing and destroying food in the middle of a global wheat shortage."

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Disneyland's Galaxy's Edge, aka "Star Wars Land," lets its visitors "immersively" experience the planet Batuu during the period between Star Wars: Episode VIII — The Last Jedi and Episode IX — The Rise of Skywalker. But there's some big changes coming, reports SFGate.com: Disney recently announced — at the "From a Galaxy Far, Far Away to Disney Park Near You" panel at Star Wars Celebration Anaheim 2022 event — that main characters from the immensely popular Disney Plus series "The Book of Boba Fett" and "The Mandalorian" would begin appearing at Disneyland. Yes, including the universally adored, merchandise and meme-dominating Grogu, aka "Baby Yoda." However, there is one sarlacc-sized snag: Those stories are set about five years after Return of the Jedi, and about 25 years before The Force Awakens, which raises a galaxy of questions about how this will impact Galaxy's Edge. The introduction of new characters into the attraction will either break the timeline of Star Wars land or, perhaps, unburden it from self-imposed shackles. This could be a good thing, the article suggests, since "Currently there is frankly not a lot of character interaction on Batuu." Kylo Ren pops in on occasion to interrogate guests, and some stormtroopers march around. Rey and Chewie pose for pics, R2-D2 wheels around, and Vi randomly shows up. But that's about it. There is no BB-8 or C-3PO, no Poe or Finn walking around, no Captain Phasma (who died in "The Last Jedi"). The cast members do their part to speak the local lingo of "bright suns" and "till the spire," but Black Spire Outpost feels somewhat unpopulated. It looks and feels like a Star Wars town, but lacks true full immersion. Oga's Cantina does feel lived in, and always crowded, but the closest immersive experience is Savi's Workshop, where building a lightsaber is a damn near religious experience, complete with the Force ghost voice of Yoda. So how would new characters impact this? If Mando appears at Galaxy's Edge, are guests to assume he (and Grogu) are still bouncing about by the time of the sequel series...? The town of Black Spire Outpost might come to resemble Fantasyland, for instance, where multiple characters occupy their own zones and don't intersect... Regardless, this change further populates Galaxy's Edge, which is good for the guest who wants to take a lot of character photos. It also allows Disney to roll out their most popular modern characters, and potentially open the door for them to showcase original trilogy and prequel trilogy characters (which are having a moment right now). But it does create major story hiccups.

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On June 4 a 10-minute Blue Origin flight (using a reusable rocket and capsule) carried six more people on a visit to suborbital space, reports Space.com — the fifth human spaceflight mission for the Jeff Bezos-founded company, and the second one this year. But GeekWire points out that civil production engineer Victor Correa Hespanha had his seat funded by the Crypto Space Agency — that is, funded entirely by the NFT community through mint proceeds — after he was the winner of its lottery for a ride to space. And they're not the only crypto community buying rides into space. CNET reports on MoonDAO: Over 8,000 people "minted" a "Ticket to Space" NFT on the Ethereum blockchain for free (plus a small transaction or "gas" fee), and...one of those NFT holders plus several alternates will be chosen at random for one of the seats to space. MoonDAO's members will also vote on a specific person from a list of predetermined nominees to gift the second ticket to. The two astronauts could fly as soon as the next Blue Origin launch in the coming weeks, but no target date has been announced.... "Our mission is to decentralize access to space research and exploration," co-founder Pablo Moncada-Larrotiz told me during an interview on stage at the DAODenver conference in February. In addition to sending people on a short trip to space, MoonDAO is also using funds from its treasury — it's raised millions worth of cryptocurrency through a crowdfunding platform called Juicebox — for community projects that include designing a small rocket and satellite. In other words, the ultimate vision is to build an organization something like SpaceX, but that's run as a community cooperative rather than in the traditional top-down corporate structure. "We definitely need more capital to get to the level of competing directly with Virgin Galactic or SpaceX," Moncada-Larrotiz said via Discord direct message on May 26. "It's for sure a long term project and I think it'll be a matter of building the right type of organization where builders are free to just focus on making awesome things in a collaborative environment." Unfortunately, MoonDAO's drawing Saturday experienced technical glitches, and after a two-hour livestream — no winner was chosen. They promised a winner would be chosen by Sunday.

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It's Warren Buffett versus Google, Facebook and Microsoft, according to a recent article by Bloomberg. (Alternate URL here.) Google, Facebook and Microsoft Corp. — three of the world's biggest corporate buyers of clean power — are sounding the alarm that a nearly $4-billion, Warren Buffett-backed renewable-energy project proposed in Iowa isn't necessarily in the best interest of customers, including them. If approved, it would be the largest complex of wind farms in the entire country when it comes online by the end of 2024, producing enough electricity for more than 700,000 homes. MidAmerican Energy, a utility owned by Buffett conglomerate Berkshire Hathaway Inc., has asked state regulators to approve terms including a guaranteed 11.25% rate of return before starting construction on a project it says will help in its efforts to trim carbon emissions by 75% compared to 2005 levels. But the big-name tech giants that operate data centers in the state warn the project, dubbed Wind Prime, could drive up electricity costs. MidAmerican, they say, should consider alternatives.... The fight is an important one to watch because it demonstrates the increasing influence technology giants have on the energy transition. Tech companies have pushed utilities in other parts of the U.S. to offer more clean energy options as they seek to clean up the sources of power for their energy-intensive operations. And since they buy so much power, the utilities often listen to them.... Facebook, which also buys large amounts of power to run data centers in Iowa, referred to the proposed project in a joint regulatory filing with Google as an "exceedingly costly, massive increase in generation that MidAmerican has not demonstrated is necessary." Last month, Microsoft filed its own petition with the Iowa Utilities Board saying it planned to join the tech-customer coalition. Facebook and Google specifically complain that "Without a resource planning analysis, it is difficult if not impossible to assess all feasible alternatives to replace/expand existing generation capacity and which alternatives are a reasonable, cost-effective way to meet reliability requirements, forecasted customer need, a diversified fuel mix, and the like, or if it is simply being proposed to drive utility — or parent company — profitability.... "Wind Prime is an exceedingly costly, massive increase in generation that MidAmerican has not demonstrated is necessary or reasonable in light of other feasible alternatives. Before customers are forced to bear the increased costs that this project will result in, Wind Prime should be carefully considered by the Board through a complete record informed by a full and thorough discovery process."

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A panel at this week's RSA Conference argued that 90% of security buyers aren't getting the efficacy from their products that vendors claim they can deliver. Slashdot reader storagedude writes: Joe Hubback of cyber risk management startup ISTARI led both the panel and the study, which was based on in-depth interviews with more than a hundred high-level security officials, including CISOs, CIOs, CEOs, security and tech vendors, evaluation organizations and government organizations. Hubback said that "90% of the people that I spoke to said that the security technologies they were buying from the market are just not delivering the effect that the vendors claim they can deliver. Quite a shocking proportion of people are suffering from technology that doesn't deliver." A number of reasons for that product failure came out in the panel discussion, according to eSecurity Planet, but they can be boiled down to some key points: - Cybersecurity buyers are pressed for time and most don't test the products they buy. "They're basically just buying and hoping that the solutions they're buying are really going to work," Hubback said. - Vendors are under pressure from investors to get products to market quickly and from sales and marketing teams to make aggressive claims. - On top of those pressures, it's difficult to architect tools that are effective for a range of complex environments – and equally difficult for buyers to properly assess these "black box" solutions. Those conditions create an information asymmetry, said Hubback: "A vendor knows a lot more about the quality of the product than the buyer so the vendor is not incentivized to bring high-quality products to market because buyers can't properly evaluate what they're buying." Hubback and fellow panelists hope to create a GSMA-like process for evaluating security product abilities, and he invited RSA attendees to join the effort.

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On June 4 a 10-minute Blue Origin flight (using a reusable rocket and capsule) carried six more people on a visit to suborbital space, reports Space.com — the fifth human spaceflight mission for the Jeff Bezos-founded company, and the second one this year. But GeekWire points out that civil production engineer Victor Correa Hespanha had his seat funded by the Crypto Space Agency — that is, funded entirely by the NFT community through mint proceeds — after he was the winner of its lottery for a ride to space. And they're not the only crypto community buying rides into space. CNET reports on MoonDAO: Over 8,000 people "minted" a "Ticket to Space" NFT on the Ethereum blockchain for free (plus a small transaction or "gas" fee), and...one of those NFT holders plus several alternates will be chosen at random for one of the seats to space. MoonDAO's members will also vote on a specific person from a list of predetermined nominees to gift the second ticket to. The two astronauts could fly as soon as the next Blue Origin launch in the coming weeks, but no target date has been announced.... "Our mission is to decentralize access to space research and exploration," co-founder Pablo Moncada-Larrotiz told me during an interview on stage at the DAODenver conference in February. In addition to sending people on a short trip to space, MoonDAO is also using funds from its treasury — it's raised millions worth of cryptocurrency through a crowdfunding platform called Juicebox — for community projects that include designing a small rocket and satellite. In other words, the ultimate vision is to build an organization something like SpaceX, but that's run as a community cooperative rather than in the traditional top-down corporate structure. "We definitely need more capital to get to the level of competing directly with Virgin Galactic or SpaceX," Moncada-Larrotiz said via Discord direct message on May 26. "It's for sure a long term project and I think it'll be a matter of building the right type of organization where builders are free to just focus on making awesome things in a collaborative environment." Unfortunately, MoonDAO's drawing Saturday experienced technical glitches, and after a two-hour livestream — no winner was chosen. They promised a winner would be chosen by Sunday.

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"Ubuntu developers have been working on bringing up and improving support for the Starfive VisionFive," writes Phoronix, calling the $179 device "one of the most promising 'low-cost' RISC-V single board computers to date... intended to run full-blown RISC-V Linux distributions." The board comes in two varieties with 4GB or 8GB of system memory, powered by a dual-core SiFive U74 RV64 SoC @ 1.0GHz, an NVDLA deep learning accelerator engine, a Tensilica-VP6 Vision DSP, and a neural network engine.... Considering the performance of the much more capable HiFive Unmatched development board (that is also multiple times more expensive) and even that sometimes being outpaced by the Raspberry Pi, don't get too excited for the dual-core 1.0GHz RISC-V 64-bit SoC for general purpose workloads. But this VisionFive board may be interesting for some machine learning and other use-cases thanks to its additional accelerators. It's also one of the few RISC-V boards capable of running a full Linux distribution in the sub-$200 space. Since the upstream Linux 5.17 kernel there has been mainline support for the VisionFive v1 board. Ubuntu developers are working on enabling the StarFive VisionFive board for their RISC-V kernel build.

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"If, as astronomers believe, the death of large stars leave behind black holes, there should be hundreds of millions of them scattered throughout the Milky Way galaxy," notes an announcement from the University of California at Berkeley. "The problem is, isolated black holes are invisible. "Now, a team led by University of California, Berkeley, astronomers has for the first time discovered what may be a free-floating black hole by observing the brightening of a more distant star as its light was distorted by the object's strong gravitational field — so-called gravitational microlensing." The team, led by graduate student Casey Lam and Jessica Lu, a UC Berkeley associate professor of astronomy, estimates that the mass of the invisible compact object is between 1.6 and 4.4 times that of the sun. Because astronomers think that the leftover remnant of a dead star must be heavier than 2.2 solar masses in order to collapse to a black hole, the UC Berkeley researchers caution that the object could be a neutron star instead of a black hole. Neutron stars are also dense, highly compact objects, but their gravity is balanced by internal neutron pressure, which prevents further collapse to a black hole. Whether a black hole or a neutron star, the object is the first dark stellar remnant — a stellar "ghost" — discovered wandering through the galaxy unpaired with another star. "This is the first free-floating black hole or neutron star discovered with gravitational microlensing," Lu said. "With microlensing, we're able to probe these lonely, compact objects and weigh them. I think we have opened a new window onto these dark objects, which can't be seen any other way...." The analysis by Lam, Lu and their international team has been accepted for publication in The Astrophysical Journal Letters. The analysis includes four other microlensing events that the team concluded were not caused by a black hole, though two were likely caused by a white dwarf or a neutron star. The team also concluded that the likely population of black holes in the galaxy is 200 million — about what most theorists predicted. Notably, a competing team from the Space Telescope Science Institute (STScI) in Baltimore analyzed the same microlensing event and claims that the mass of the compact object is closer to 7.1 solar masses and indisputably a black hole. A paper describing the analysis by the STScI team, led by Kailash Sahu, has been accepted for publication in The Astrophysical Journal.... The astrometric data came from NASA's Hubble Space Telescope.... While surveys like these discover about 2,000 stars brightened by microlensing each year in the Milky Way galaxy, the addition of astrometric data is what allowed the two teams to determine the mass of the compact object and its distance from Earth.

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Slashdot reader MojoKid writes: AMD unveiled new details of its technology roadmap Thursday at its 2022 Financial Analyst Day. Chief among them were disclosures on the company's next-gen RDNA 3 GPU architecture, Zen 4 CPU architecture and Phoenix Point laptop SoC. AMD's new RDNA 3 GPU architecture for Radeon graphic cards and mobile will be a chiplet-based design, much like the company's Ryzen CPU offering. AMD also confirmed that RDNA 3 GPUs would be fabricated on a 5nm process, likely TSMC N5. The company continued to note that an "optimized graphics pipeline" will enable yet higher clock rates, while the GPU's "rearchitected compute unit" will have ray-tracing performance improvements over RDNA 2 as well. AMD says that RDNA 3 GPUs are coming later this year, with RDNA 4 arriving likely in late 2023. Meanwhile, AMD's Zen 4 is set to be the "world's first 5nm CPU," arriving later this year with an 8 to 10 percent instructrions per clock lift and greater than 15 percent single-threaded performance gain. Zen 4 will also support DDR5, AVX-512 extensions for AI workloads and a massive 125 percent increase in memory bandwidth. AMD is claiming a 35% multithreaded performance lift for Zen 4. And, its Phoenix Point laptop platform SoC will be both Zen 4 and RNDA 3 infused. This is a first for AMD, since typically its laptop product's integrated graphics trail the company's current-gen GPU architecture by at least a generation. Phoenix point is set to arrive likely in the first half of 2023.

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