SpaceX's Starship exploded on its test stand in South Texas ahead of an engine test, marking the fourth loss of a Starship this year. "In three previous test flights, the vehicle came apart or detonated during its flight," notes the Washington Post. No injuries were reported but the incident highlights ongoing technical challenges as SpaceX races to prove Starship's readiness for deep-space travel. From the report: In a post on the social media site X, SpaceX said that the explosion on the test stand, which could be seen for miles, happened at about 11 p.m. Central time. For safety reasons, the company had cleared personnel from around the site, and "all personnel are safe and accounted for," it said. The company is "actively working to safe the test site and the immediate surrounding area in conjunction with local officials," the post continued. "There are no hazards to residents in surrounding communities, and we ask that individuals do not attempt to approach the area while safing operations continue."

Starship comprises two stages -- the Super Heavy booster, which has 33 engines, and the Starship spacecraft itself, which has six. Before Wednesday's explosion, the spacecraft was standing alone on the test stand, and not mounted on top of the booster, when it blew up. The engines are test-fired on the Starship before it's mounted on the booster. SpaceX had been hoping to launch within the coming weeks had the engine test been successful. [...] In a post on X, Musk said that preliminary data pointed to a pressure vessel that failed at the top of the rocket. You can watch a recording of the explosion on YouTube.

SpaceX called the incident a "rapid unscheduled disassembly," which caught the attention of Slashdot reader hambone142. In a story submitted to the Firehose, they commented: "I worked for a major computer company whose power supplies caught on fire. We were instructed to cease saying that and instead say the power supply underwent a 'thermal event.' Gotta love it."

93 Escort Wagon writes: More proof that Amazon's leadership views the balance of power between itself and its workforce tilting decisively in its favor: Amazon's employees are being told they must relocate to one of the company's large hubs -- with the company specifying the required location -- or resign with no severance. CEO Andy Jassy did have the grace to give people 30 days to decide.

Investigators believe Air India Flight 171 had an emergency-power generator operating when it crashed last week, raising questions about whether the plane's engines functioned properly during takeoff. WSJ: The preliminary finding [non-paywalled source], according to people familiar with the probe, gives investigators a new line of inquiry as they study a crash that killed all but one of the plane's passengers. In all, at least 270 people died following the crash, including some on the ground in the western Indian city of Ahmedabad.

The emergency system is known as a ram air turbine. It is a small propeller that drops from the bottom of the 787 Dreamliner's fuselage to serve as a backup generator. Engines normally produce electricity for an aircraft and help run its flight-control systems. The power generated by the RAT can enable crucial aircraft components to function. The system can deploy automatically in flight if both engines have failed or if all three hydraulic system pressures are low, according to an airline's Boeing 787 manual reviewed by The Wall Street Journal.

It can also deploy if cockpit instruments lose power or problems emerge with the aircraft's electric motor pumps. Pilots can manually deploy the RAT if needed. The most common occurrence is when a pilot thinks that both engines failed, according to Anthony Brickhouse, a U.S.-based aerospace safety consultant. Engine failures can result from a variety of causes, including bird strikes or problems with fuel.

An anonymous reader quotes a report from the BBC: The Spanish government has said that the national grid operator and private power generation companies were to blame for an energy blackout that caused widespread chaos in Spain and Portugal earlier this year. Shortly after midday on April 28, both countries were disconnected from the European electricity grid for several hours. Businesses, schools, universities, government buildings and transport hubs were all left without power and traffic light outages caused gridlocks. While schoolchildren, students and workers were sent home for the day, many other people were stuck in lifts or stranded on trains in isolated rural areas.

In the immediate aftermath, the left-wing coalition government did not provide an explanation, instead calling for patience as it investigated. Nearly two months after the unprecedented outage, the minister for ecological transition, Sara Aagesen, has presented a report on its causes. She said the partly state-owned grid operator, Red Electrica, had miscalculated the power capacity needs for that day, explaining that the "system did not have enough dynamic voltage capacity." The regulator should have switched on another thermal plant, she said, but "they made their calculations and decided that it was not necessary."

Aagesen also blamed private generators for failing to regulate the grid's voltage shortly before the blackout happened. "Generation firms which were supposed to control voltage and which, in addition, were paid to do just that did not absorb all the voltage they were supposed to when tension was high," she said, without naming any of the companies responsible. The day after the outage, Prime Minister Pedro Sanchez suggested that private electricity companies might have played a role, saying that his government would demand "all the relevant accountability" from them. However, the new report on the blackout also raises questions about the role of Beatriz Corredor, president of Red Electrica and a former Socialist minister, who had previously insisted that the grid regulator had not been at fault. Aagesen said there was no evidence of a cyberattack behind the blackout. The government also maintained that Spain's renewable energy output was not to blame.

Denmark has deployed four uncrewed robotic sailboats (known as "Voyagers") for a three-month trial to boost maritime surveillance amid rising tensions in the Baltic region. The Associated Press reports: Built by Alameda, California-based company Saildrone, the vessels will patrol Danish and NATO waters in the Baltic and North Seas, where maritime tensions and suspected sabotage have escalated sharply since Russia's full-scale invasion of Ukraine on Feb. 24, 2022. Two of the Voyagers launched Monday from Koge Marina, about 40 kilometers (25 miles) south of the Danish capital, Copenhagen. Powered by wind and solar energy, these sea drones can operate autonomously for months at sea. Saildrone says the vessels carry advanced sensor suites -- radar, infrared and optical cameras, sonar and acoustic monitoring. Their launch comes after two others already joined a NATO patrol on June 6.

Saildrone founder and CEO Richard Jenkins compared the vessels to a "truck" that carries sensors and uses machine learning and artificial intelligence to give a "full picture of what's above and below the surface" to about 20 to 30 miles (30 to 50 kilometers) in the open ocean. He said that maritime threats like damage to undersea cables, illegal fishing and the smuggling of people, weapons and drugs are going undetected simply because "no one's observing it." Saildrone, he said, is "going to places ... where we previously didn't have eyes and ears." The Danish Defense Ministry says the trial is aimed at boosting surveillance capacity in under-monitored waters, especially around critical undersea infrastructure such as fiber-optic cables and power lines.

In Tokyo Mitsubishi is deploying "an innovative new battery swap network for electric cars" in a multi-year test program reports the EV news site Electrek.

But it's not just for electric cars. Along with the 14 modular battery swapping stations, Mitsubishi is also deploying "more than 150 battery-swappable commercial electric vehicles" from truck maker Fuso: A truck like the Mitsubishi eCanter typically requires a full night of AC charging to top off its batteries, and at least an hour or two on DC charging in Japan, according to Fuso. This joint pilot by Mitsubishi, Mitsubishi Fuso Trucks, and [EV battery swap specialist] Ample aims to circumvent this issue of forced downtime with its swappable batteries, supporting vehicle uptime by delivering a full charge within minutes.

The move is meant to encourage the transport industry's EV shift while creating a depository of stored energy that can be deployed to the grid in the event of a natural disaster — something Mitsubishi in Japan has been working on for years.
The article's author also adds their own opinion about battery-swapping technology. "When you see how simple it is to add hundreds of miles of driving in just 100 seconds — quicker, in many cases, than pumping a tank of liquid fuel into an ICE-powered car — you might come around, yourself."

"Cooper Taylor is only 17 years old, but he's already trying to revolutionize the drone industry," writes Business Insider: His design makes the drone more efficient, customizable, and less expensive to construct, he says. He's built six prototypes, 3D printing every piece of hardware, programming the software, and even soldering the control circuit board. He says building his drone cost one-fifth of the price of buying a comparable machine, which sells for several thousand dollars. Taylor told Business Insider he hopes that "if you're a first responder or a researcher or an everyday problem solver, you can have access to this type of drone."

His innovation won him an $8,000 scholarship in April at the Junior Science and Humanities Symposium, funded by the Defense Department. Then, on May 16, he received an even bigger scholarship of $15,000 from the US Navy, which he won after presenting his research at the Regeneron International Science and Engineering Fair...

It all started when Taylor's little sister got a drone, and he was disappointed to see that it could fly for only about 30 minutes before running out of power. He did some research and found that a vertical take-off and landing, or VTOL, drone would last longer. This type of drone combines the multi-rotor helicopter style with the fixed wings of an airplane, making it extremely versatile. It lifts off as a helicopter, then transitions into plane mode. That way, it can fly farther than rotors alone could take it, which was the drawback to Taylor's sister's drone. Unlike a plane-style drone, though, it doesn't need a runway, and it can hover with its helicopter rotors.
Taylor designed a motor "that could start out helicopter-style for liftoff, then tilt back to become an airplane-style motor," according to the article.

And now this summer he'll be "working on a different drone project through a program with the Reliable Autonomous Systems Lab at the Massachusetts Institute of Technology."

Thanks to Slashdot reader Agnapot for sharing the news.

In a world first, a research team used 2D materials — only an atom thick — to develop a computer. The team (led by researchers at Pennsylvania State University) says it's a major step toward thinner, faster and more energy-efficient electronics.

From the University's announcement: They created a complementary metal-oxide semiconductor (CMOS) computer — technology at the heart of nearly every modern electronic device — without relying on silicon. Instead, they used two different 2D materials to develop both types of transistors needed to control the electric current flow in CMOS computers: molybdenum disulfide for n-type transistors and tungsten diselenide for p-type transistors... "[A]s silicon devices shrink, their performance begins to degrade," [said lead researcher/engineering professor Saptarshi Das]. "Two-dimensional materials, by contrast, maintain their exceptional electronic properties at atomic thickness, offering a promising path forward...."

The team used metal-organic chemical vapor deposition (MOCVD) — a fabrication process that involves vaporizing ingredients, forcing a chemical reaction and depositing the products onto a substrate — to grow large sheets of molybdenum disulfide and tungsten diselenide and fabricate over 1,000 of each type of transistor. By carefully tuning the device fabrication and post-processing steps, they were able to adjust the threshold voltages of both n- and p-type transistors, enabling the construction of fully functional CMOS logic circuits.

"Our 2D CMOS computer operates at low-supply voltages with minimal power consumption and can perform simple logic operations at frequencies up to 25 kilohertz," said first author Subir Ghosh, a doctoral student pursuing a degree in engineering science and mechanics under Das's mentorship. Ghosh noted that the operating frequency is low compared to conventional silicon CMOS circuits, but their computer — known as a one instruction set computer — can still perform simple logic operations.

High-voltage electricity cables have become a major constraint throttling the clean energy transition, with manufacturing facilities booked out for years as demand far exceeds supply capacity. The energy transition, trade barriers, and overdue grid upgrades have turbocharged demand for these highly sophisticated cables that connect wind farms, solar installations, and cross-border power networks.

The International Energy Agency estimates that 80 million kilometers of grid infrastructure must be built between now and 2040 to meet clean energy targets -- equivalent to rebuilding the entire existing global grid that took a century to construct, but compressed into just 15 years. Each high-voltage cable requires custom engineering and months-long production in specialized 200-meter towers, with manufacturers reporting that 80-90% of major projects now use high-voltage direct current technology versus traditional alternating current systems.

Anker is recalling 1.15 million "PowerCore 10000" portable chargers due to fire and explosion risks linked to overheating lithium-ion batteries, with 19 incidents reported. "That includes two minor burn injuries and 11 reports of property damage amounting to over $60,700," reports CBS News. Consumers are urged to stop using the affected devices, check their serial numbers, and request a free replacement through Anker's website. From the report: According to a notice from the U.S. Consumer Product Safety Commission (CPSC), the lithium-ion battery inside certain "PowerCore 10000" made by Anker, a China-based electronics maker, can overheat. That can lead to the "melting of plastic components, smoke and fire hazards," Anker said in an announcement. The company added that it was conducting the recall "out of an abundance of caution to ensure the safety of our customers."

The recalled "PowerCore 10000" power banks have a model number of A1263. They were sold online at Anker's website -- as well as Amazon, eBay and Newegg -- between June 2016 and December 2022 for about $27 across the U.S., according to the recall notice. Consumers can check their serial number at Anker's site to determine whether their power bank is included in the recall.

The United States is mounting an ambitious effort to reclaim nuclear energy leadership after falling dangerously behind China, which now has 31 reactors under construction and plans 40 more within a decade. America produces less nuclear power than it did a decade ago and abandoned uranium mining and enrichment capabilities, leaving Russia controlling roughly half the world's enriched uranium market.

This strategic vulnerability has triggered an unprecedented response: venture capitalists invested $2.5 billion in US next-generation nuclear technology since 2021, compared to near-zero in previous years, while the Trump administration issued executive orders to accelerate reactor deployment. The urgency stems from AI's city-sized power requirements and recognition that America cannot afford to lose what Interior Secretary Doug Burgum calls "the power race" with China.

Companies like Standard Nuclear in Oak Ridge, Tennessee are good examples of this push, developing advanced reactor fuel despite employees working months without pay.

An anonymous reader shares a report: Slack, an instant-messaging service popular with businesses, recently blocked other software firms from searching or storing Slack messages even if their customers permit them to do so, according to a public disclosure from Slack's owner, Salesforce.

The move, which hasn't previously been reported, could hamper fast-growing artificial intelligence startups that have used such access to power their services, such as Glean. Since the Salesforce change, Glean and other applications can no longer index, copy or store the data they access via the Slack application programming interface on a long-term basis, according to the disclosure. Salesforce will continue allowing such firms to temporarily use and store their customers' Slack data, but they must delete the data, the company said.

Meta has struck a new deal with geothermal startup XGS Energy to supply 150 megawatts of carbon-free electricity for its New Mexico data center. "Advances in AI require continued energy to support infrastructure development," Urvi Parekh, global head of energy at Meta, said in a press release. "With next-generation geothermal technologies like XGS ready for scale, geothermal can be a major player in supporting the advancement of technologies like AI as well as domestic data center development." The Verge reports: Geothermal plants generate electricity using Earth's heat; typically drawing up hot fluids or steam from natural reservoirs to turn turbines. That tactic is limited by natural geography, however, and the US gets around half a percent of its electricity from geothermal sources. Startups including XGS are trying to change that by making geothermal energy more accessible. Last year, Meta made a separate 150MW deal with Sage Geosystems to develop new geothermal power plants. Sage is developing technologies to harness energy from hot, dry rock formations by drilling and pumping water underground, essentially creating artificial reservoirs. Google has its own partnership with another startup called Fervo developing similar technology.

XGS Energy is also seeking to exploit geothermal energy from dry rock resources. It tries to set itself apart by reusing water in a closed-loop process designed to prevent water from escaping into cracks in the rock. The water it uses to take advantage of underground heat circulates inside a steel casing. Conserving water is especially crucial in a drought-prone state like New Mexico, where Meta is expanding its Los Lunas data center. Meta declined to say how much it's spending on this deal with XGS Energy. The initiative will roll out in two phases with a goal of being operational by 2030.

The PCI-SIG, which oversees the development of the PCIe specification, has officially released the final spec for PCI Express 7.0. "The PCIe 7.0 specification increases the per-lane data transfer rate to 128 GT/s in each direction, which is twice as fast as PCIe 6.0 supports and four times faster than PCIe 5.0," reports Tom's Hardware. "Such a significant performance increase enables devices with 16 PCIe 7.0 lanes to transfer up to 256 GB/s in each direction, not accounting for protocol overhead. The new version of the interface continues to use PAM4 signaling while maintaining the 1b/1b FLIT encoding method first introduced in PCIe 6.0." From the report: To achieve PCIe 7.0's 128 GT/s record data transfer rate, developers of PCIe 7.0 had to increase the physical signaling rate to 32 GHz or beyond. Keep in mind that both PCIe 5.0 and 6.0 use a physical signaling rate of 16 GHz to enable 32 GT/s using NRZ signaling and 64 GT/s using PAM4 signaling (which allows transfers of two bits per symbol). With PCIe 7.0, developers had to boost the physical frequency for the first time since 2017, which required tremendous work at various levels, as maintaining signal integrity at 32 GHz over long distances using copper wires is extremely challenging.

Beyond raw throughput, the update also offers improved power efficiency and stronger support for longer or more complex electrical channels, particularly when using a cabling solution, to cater to the needs of next-generation data center-grade bandwidth-hungry applications, such as 800G Ethernet, Ultra Ethernet, and quantum computing, among others. [...] With the PCIe 7.0 standard officially released, members of the PCI-SIG, including AMD, Intel, and Nvidia, can begin finalizing the development of their platforms that support the PCIe specifications. PCI-SIG plans to start preliminary compliance tests in 2027, with official interoperability tests scheduled for 2028. Therefore, expect actual PCIe 7.0 devices and platforms on the market sometime in 2028 - 2029, if everything goes as planned. PCI-SIG also announced that pathfinding for PCIe 8.0 is underway, and members of the organization are actively exploring possibilities and defining capabilities of a standard that they are going to use in 2030 and beyond.

"Interestingly, when asked whether PCIe 8.0 would double data transfer rate to 256 GT/s in each direction (and therefore enable bandwidth of 1 TB/s in both directions using 16 lanes), Al Yanes, president of PCI-SIG, said that while this is an intention, he would not like to make any definitive claims," reports Tom's Hardware. "Additionally, he stated that PCI-SIG is looking forward to enabling PCIe 8.0, which will offer higher performance over copper wires in addition to optical interconnects."

Microsoft quietly teased its next-generation Xbox by showcasing its collaboration with Asus "to bring two Xbox Ally handhelds to the market later this year," writes The Verge's Tom Warren. From the report: The Xbox Ally handhelds run Windows, but the Xbox team has worked with Windows engineers to boot these PC handhelds into a full-screen Xbox UI. The Windows desktop doesn't even fully load, and you use the Xbox app UI as a launcher to get to all your games (even Steam titles) and apps like Discord. While the combination of Windows and Xbox here is intriguing, it's the way that Microsoft is positioning these devices that really caught my attention.

"This is an Xbox," said Microsoft during the reveal, clearly expanding its marketing push beyond a single console to every screen and device. It all felt like a true Xbox handheld reveal. There was even an 11-minute-long behind-the-scenes video on the Xbox Ally handhelds, filmed in a similar style to Microsoft's "Project Scorpio" Xbox One X reveal from nearly nine years ago. "This is a breakthrough moment for Xbox," Carl Ledbetter, a 30-year Microsoft design veteran, says in the video. Ledbetter helped design the original IntelliMouse, the Xbox 360 Slim, the Xbox One X, and plenty of other Microsoft devices. When Ledbetter is involved, you know it's more than just a simple partner project with Asus.

"For the first time, a player is going to be able to hold the power of the Xbox experience in their hand, and take it with them anywhere they want to go," says Xbox president Sarah Bond, in the same video. Microsoft thinks of the Xbox Ally handhelds as Xbox consoles with the freedom of Windows, and I think the next-gen Xbox is going to look very similar as a result. Related

Anker has issued a recall for its PowerCore 10000 power bank (model A1263) due to a "potential issue with the lithium-ion battery" that could pose a fire safety risk. An anonymous reader adds: The company has received 19 reports of fires and explosions that have caused minor burn injuries and resulted in property damage totaling over $60,700, according to the US Consumer Product Safety Commission (USCPSC).

The recall covers about 1,158,000 units that were sold online through Amazon, Newegg, and eBay between June 2016 and December 2022. The affected batteries can be identified by the Anker logo engraved on the side with the model number A1263 printed on the bottom edge. However, Anker is only recalling units sold in the US with qualifying serial numbers. To check if yours is included, you'll need to visit Anker's website.

The World Bank is lifting its decades-long ban on financing nuclear energy, in a policy shift aimed at accelerating development of the low-emissions technology to meet surging electricity demand in the developing world. From a report: In an email to staff on Wednesday, Ajay Banga, the World Bank president, said it would "begin to re-enter the nuclear energy space" [non-paywalled source] in partnership with the International Atomic Energy Agency, the UN nuclear watchdog which works to prevent proliferation of nuclear weapons.

"We will support efforts to extend the life ofÂexisting reactors in countries that already have them, and help support grid upgrades andÂrelated infrastructure," the email said. The shift follows advocacy from the pro-nuclear Trump administration and a change of government in Germany, which previously opposed financing atomic energy due to domestic political opposition to the technology. It is part of a wider strategy aimed at tackling an expected doubling of electricity demand in the developing world by 2035. Meeting this demand would require annual investment in generation, grids and storage to rise from $280 billion today to $630 billion, Banga said in the memo seen by the Financial Times.

Amazon Web Services has signed a long-term deal with Talen Energy to receive up to 1,920 megawatts of carbon-free electricity from the Susquehanna nuclear plant through 2042 to support AWS's AI and cloud operations. The partnership also includes plans to explore new Small Modular Reactors and expand nuclear capacity amid rising U.S. energy demand. Utility Drive reports: Under the PPA, Talen's existing 300-MW co-location arrangement with AWS will shift to a "front of the meter" framework that doesn't require Federal Energy Regulatory Commission approval, according to Houston-based Talen. The company expects the transition will occur next spring after transmission upgrades are finished. FERC in November rejected an amended interconnection service agreement that would have facilitated expanded power sales to a co-located AWS data center at the Susquehanna plant. The agency is considering potential rules for co-located loads in PJM.

Talen expects to earn about $18 billion in revenue over the life of the contract at its full quantity, according to an investor presentation. The contract, which runs through 2042, calls for delivering 840 MW to 1,200 MW in 2029 and 1,680 MW to 1,920 MW in 2032. Talen will act as the retail power supplier to AWS, and PPL Electric Utilities will be responsible for transmission and delivery, the company said. Amazon on Monday said it plans to spend about $20 billion building data centers in Pennsylvania.

"We are making the largest private sector investment in state history -- $20 billion-- to bring 1,250 high-skilled jobs and economic benefits to the state, while also collaborating with Talen Energy to help power our infrastructure with carbon-free energy," Kevin Miller, AWS vice president of global data centers, said.

An anonymous reader quotes a report from Reuters: Indirect carbon emissions from the operations of four of the leading AI-focused tech companies rose on average by 150% from 2020-2023, due to the demands of power-hungry data centers, a United Nations report (PDF) said on Thursday. The use of artificial intelligence by Amazon, Microsoft, Alphabet and Meta drove up their global indirect emissions because of the vast amounts of energy required to power data centers, the report by the International Telecommunication Union (ITU), the U.N. agency for digital technologies, said.

Indirect emissions include those generated by purchased electricity, steam, heating and cooling consumed by a company. Amazon's operational carbon emissions grew the most at 182% in 2023 compared to three years before, followed by Microsoft at 155%, Meta at 145% and Alphabet at 138%, according to the report. The ITU tracked the greenhouse gas emissions of 200 leading digital companies between 2020 and 2023. [...] As investment in AI increases, carbon emissions from the top-emitting AI systems are predicted to reach up to 102.6 million tons of carbon dioxide equivalent per year, the report stated.

The data centres that are needed for AI development could also put pressure on existing energy infrastructure. "The rapid growth of artificial intelligence is driving a sharp rise in global electricity demand, with electricity use by data centers increasing four times faster than the overall rise in electricity consumption," the report found. It also highlighted that although a growing number of digital companies had set emissions targets, those ambitions had not yet fully translated into actual reductions of emissions. UPDATE: The headline has been revised to clarify that four leading AI-focused tech companies saw their operational emissions rise to 150% of their 2020 levels by 2023 -- a 50% increase, not a 150% one.

Bluesky's user engagement has fallen roughly 50% since peaking in mid-November, according to a recent Pew Research Center analysis, as progressive groups' efforts to migrate users from Elon Musk's X platform show signs of failure. The research found that while many news influencers maintain Bluesky accounts, two-thirds post irregularly compared to more than 80% who still post daily to X. A Washington Post columnist tries to make sense of it: The people who have migrated to Bluesky tend to be those who feel the most visceral disgust for Musk and Trump, plus a smattering of those who are merely curious and another smattering who are tired of the AI slop and unregenerate racism that increasingly pollutes their X feeds. Because the Musk and Trump haters are the largest and most passionate group, the result is something of an echo chamber where it's hard to get positive engagement unless you're saying things progressives want to hear -- and where the negative engagement on things they don't want to hear can be intense. That's true even for content that isn't obviously political: Ethan Mollick, a professor at the University of Pennsylvania's Wharton School who studies AI, recently announced that he'll be limiting his Bluesky posting because AI discussions on the platform are too "fraught."

All this is pretty off-putting for folks who aren't already rather progressive, and that creates a threefold problem for the ones who dream of getting the old band back together. Most obviously, it makes it hard for the platform to build a large enough userbase for the company to become financially self-sustaining, or for liberals to amass the influence they wielded on old Twitter. There, they accumulated power by shaping the contours of a conversation that included a lot of non-progressives. On Bluesky, they're mostly talking among themselves.