AI

HarperCollins Confirms It Has a Deal to Sell Authors' Work to AI Company 36

HarperCollins has partnered with an AI technology company to allow limited use of select nonfiction backlist titles for training AI models, offering authors the choice to opt in for a $2,500 non-negotiable fee. 404 Media reports: On Friday, author Daniel Kibblesmith, who wrote the children's book Santa's Husband and published it with HarperCollins, posted screenshots on Bluesky of an email he received, seemingly from his agent, informing him that the agency was approached by the publisher about the AI deal. "Let me know what you think, positive or negative, and we can handle the rest of this for you," the screenshotted text in an email to Kibblesmith says. The screenshots show the agent telling Kibblesmith that HarperCollins was offering $2,500 (non-negotiable).

"You are receiving this memo because we have been informed by HarperCollins that they would like permission to include your book in an overall deal that they are making with a large tech company to use a broad swath of nonfiction books for the purpose of providing content for the training of an Al language learning model," the screenshots say. "You are likely aware, as we all are, that there are controversies surrounding the use of copyrighted material in the training of Al models. Much of the controversy comes from the fact that many companies seem to be doing so without acknowledging or compensating the original creators. And of course there is concern that these Al models may one day make us all obsolete."
Kibblesmith called the deal "abominable."

"It seems like they think they're cooked, and they're chasing short money while they can. I disagree," Kibblesmith told the AV Club. "The fear of robots replacing authors is a false binary. I see it as the beginning of two diverging markets, readers who want to connect with other humans across time and space, or readers who are satisfied with a customized on-demand content pellet fed to them by the big computer so they never have to be challenged again."
The Almighty Buck

AI Investments Are Booming, but Venture-Firm Profits Are at a Historic Low (msn.com) 31

Silicon Valley's venture-capital firms are having an easy time finding promising startups to back. The hard part is cashing out. From a report: Last year, U.S. venture firms returned $26 billion worth of shares back to their investors, the lowest amount since 2011, according to the data provider PitchBook. Startup investors say 2024 has continued the trend, with high levels of investment and few acquisition deals or initial public offerings. "We've raised a lot of money, and we've given very little back," Thomas Laffont, co-founder of investment firm Coatue Management, said at a recent conference. "We are bleeding cash as an industry."

Last year, U.S. venture firms invested $60 billion more than they collected, the highest such deficit in PitchBook's 26 years of data. As a result, the investors that back VC firms, such as university endowments and pension funds, aren't seeing the type of profits the industry has long delivered. The decline is particularly notable because the past three years have been the highest three on record for total VC firm investments since 1998 -- as far as back as the PitchBook data goes. Much of that money has recently gone to artificial-intelligence startups -- a white-hot space in which valuations are rising fast and companies quickly burn through cash to develop new technology.

Programming

The Rust Foundation Wants to Improve Rust and C++ Interoperability (rust-lang.org) 17

The goal? "Make C++ and Rust interoperability easily accessible and approachable to the widest possible audience." And the Rust Foundation's "Interop Initiative" is specifically focused on the goal of interoperability "within the same executable," through either inline embedding that allows "integrated compilation", or foreign function interfaces.

To that end, a statement addressing "the challenges and opportunities in C++ and Rust interoperability" was announced this week by the Rust Foundation. Pointing out that the "Interop Initiative" was launched in February 2024 with a $1M contribution from Google, it now "proposes a collaborative, problem-space approach engaging key stakeholders from both language communities.

"Rather than prescribing specific solutions, this problem statement serves as a foundation for community input and participation in shaping both the strategic direction and tactical implementation of improved C++/Rust interoperability."

Their official problem statement outlines three "key strategic approaches."

- Improve existing tools and address tactical issues to reduce interoperability friction and risk in the short term.

- Build consensus around long-term goals requiring changes to Rust itself and develop the tactical approaches to begin pursuing them.

- Engage with the C++ community and committee to improve the quality of interoperation for both languages to help realize the mutual goals of safety and performance.


And it argues that interoperability "is essential to pursuing safety and performance which is maintainable and scalable." A significant amount of development has gone into libraries to facilitate interoperability with both C and C++, but from the language and compiler level, the situation remains largely unchanged from the early days of Rust. As the desire to integrate Rust into more C++ codebases increases, the value of making C++/Rust interoperability safer, easier, and more efficient is rapidly increasing. While each language takes a different overall approach, both view safety as an essential concern in modern systems. Both Rust and C++ have language- and standard-library-level facilities to improve safety in seemingly compatible ways, but significant benefits are lost when transiting the foreign function interfaces (FFI) boundary using the C ABI...

The consequence of this increased cost to interoperate means both C++ and Rust codebases are less able to access valuable code that already exists in the other language, and the ability to transition system components from one language to another is reduced outside of existing C-like interface boundaries. Ultimately, this reduction in freedom leads to worse outcomes for all users since technologists are less free to choose the most effective solutions.

Linux

Linux Kernel 6.12 Has Been Released (omgubuntu.co.uk) 54

Slashdot unixbhaskar writes: Linus has released a fresh Linux kernel for public consumption. Please give it a try and report any glitches to the maintainers for improvement. Also, please do not forget to express your appreciation to those tireless folks who did all the hard work for you.
The blog OMG Ubuntu calls it "one of the most biggest kernel releases for a while," joking that it's a "really real-time kernel." The headline feature in Linux 6.12 is mainline support for PREEMPT_RT. This patch set dramatically improves the performance of real-time applications by making kernel processes pre-emptible — effectively enabled proper real-time computing... Meanwhile, Linus Torvalds himself contributes a new method for user-space address masking designed to claw back some of the performance lost due to Spectre-v1 mitigations.

You might have heard that kernel devs have been working to add QR error codes to Linux's kernel panic BSOD screen (as a waterfall of error text is often cut off and not easily copied for ad-hoc debugging). Well, Linux 6.12 adds support for those during Direct Rendering Manager panics...

A slew of new RISC-V CPU ISA extensions are supported in Linux 6.12; hybrid CPU scaling in the Intel P-State driver lands ahead of upcoming Intel Core Ultra 2000 chips; and AMD P-State driver improves AMD Boost and AMD Preferred Core features.

More coverage from the blog 9to5Linux highlights a new scheduler called sched_ext, Clang support (including LTO) for nolibc, support for NVIDIA's virtual command queue implementation for SMMUv3, and "an updated cpuidle tool that now displays the residency value of cpuidle states for a clearer and more detailed view of idle state information when using cpuidle-info." Linux kernel 6.12 also introduces SWIG bindings for libcpupower to make it easier for developers to write scripts that use and extend the functionality of libcpupower, support for translating normalized error addresses reported by an AMD memory controller into system physical addresses using a UEFI mechanism called platform runtime mechanism (PRM), as well as simplified loading of microcode patches on AMD Zen and newer CPUs by using the family, model, and stepping encoded in the patch revision number...

Moreover, Linux 6.12 adds support for running as a protected guest on Android as well as perf and support for a bunch of new interconnect PMUs. It also adds the final conversions to the new Intel VFM CPU model matching macros, rewrites the PCM buffer allocation handling and locking optimizations, and improves the USB audio driver...

EU

Privately-Funded EU Company Raises $160M for SpaceX Dragon-Like Reusable Space Capsule (techcrunch.com) 44

Nyx is a new reusable space capsule that "safely and affordably carries cargo to and from space stations," according to the web page of its European-based manufacturer, The Exploration Company, "launching from any heavy launcher worldwide."

And the company "just closed a large funding round to further its mission of building Europe's first reusable space capsule," reports TechCrunch — pointing out that right now, "Only two companies currently provide cargo delivery to and from the International Space Station, and both are based in the United States." The $160 million Series B round will fund the continued development of the Nyx spacecraft, which will be capable of carrying 3,000 kilograms of cargo to and from Earth. The company, which was founded three years ago by aerospace engineers Hélène Huby, Sebastien Reichstat, and Pierre Vine, is aiming to conduct Nyx's maiden flight to and from the International Space Station in 2028.

"We are the first company in the world where this is for the first time mainly funded by private investors," Huby said in a recent interview. This is in contrast to SpaceX's Dragon capsule, which she said was "mainly funded by NASA." The new funding, which was led by Balderton Capital and Plural, brings the startup's total funding to date to over $208 million. The Series B also included participation from Bessemer Venture Partners, NGP Capital, and two sovereign European funds, French Tech Souveraineté and DeepTech & Climate Fonds. "We've been able to deliver on promises in the past three years," Huby said. "We've been able to meet our cash target ever quarter ... The investors, they could see that we basically can deliver on time, on cost, on quality."

The startup has made traction with the European Space Agency, which has recognized the need to foster native space launch and transportation capabilities... It's a promising start, but equally promising is the traction The Exploration Company is seeing on the commercial side. Around 90% of the startup's $770 million contract backlog has come from private station developers Vast, Axiom Space, and Starlab, according to recent reporting...

The second sub-scale demonstrator mission, called Mission Possible, is scheduled to launch on a SpaceX Falcon 9 next year.

TechCrunch quotes Huby as saying "I highly respect what SpaceX has been able to achieve.We are trying to learn as much as possible from that, we are inspired by what they have achieved."

In a CNBC interview, Huby says "It's a big market, and it's growing about a bit more than 10% per year because more nations want to fly their astronauts and more nations want to go to the moon. So there is an increased demand for sending people to stations, sending cargo to stations."

"Join us on our mission to democratize access to space," says a home-page link to the company's recruiting page — with a link further down titled "Book a mission."
Space

China Unveils 'Haolong' Space Shuttle (space.com) 60

A reusable uncrewed spaceplane was unveiled this week for delivering and returning cargo from the Chinese Tiangong space station. It was built by the Chengdu Aircraft Design and Research Institute (part of the state-owned Aviation Industry Corporation of China). (See YouTube footage here...)

Long-time Slashdot reader Geoffrey.landis writes: Like the Sierra Space "Dream Chaser" [still under development], the vehicle is to be launched as a payload on a separate launch vehicle, and land horizontally on Earth on a runway. The design is aerodynamically a hybrid, incorporating features of both winged and lifting-body designs. A model of the Haolong will make its debut at the 15th "Airshow China", November 12 to 17 in Zhuhai.
"The China Manned Space Agency shortlisted the spacecraft as one of two proposed affordable cargo spacecraft designs," reports Aviation Week.
Space

New Model Calculates Chances of Intelligent Beings In Our Universe and Beyond (ras.ac.uk) 104

Chances of intelligent life emerging in our Universe "and in any hypothetical ones beyond it" can be estimated by a new theoretical model, reports the Royal Astronomical Society.

Since stars are a precondition for the emergence of life, the new research predicts that a typical observer [i.e., intelligent life] should experience a substantially larger density of dark energy than is seen in our own Universe... The approach presented in the paper involves calculating the fraction of ordinary matter converted into stars over the entire history of the Universe, for different dark energy densities. The model predicts this fraction would be approximately 27% in a universe that is most efficient at forming stars, compared to 23% in our own Universe. Dark energy makes the Universe expand faster, balancing gravity's pull and creating a universe where both expansion and structure formation are possible. However, for life to develop, there would need to be regions where matter can clump together to form stars and planets, and it would need to remain stable for billions of years to allow life to evolve.

Crucially, the research suggests that the astrophysics of star formation and the evolution of the large-scale structure of the Universe combine in a subtle way to determine the optimal value of the dark energy density needed for the generation of intelligent life. Professor Lucas Lombriser, Université de Genève and co-author of the study, added: "It will be exciting to employ the model to explore the emergence of life across different universes and see whether some fundamental questions we ask ourselves about our own Universe must be reinterpreted."

The study was funded by the EU's European Research Council, and published in Monthly Notices of the Royal Astronomical Society.

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

ISS Astronauts are Safe. But NASA and Russia Disagree on How to Fix Leak (space.com) 39

"NASA has emphasized the ISS crew is in no immediate danger," reports Space.com. "The leaking area in the Russian segment of the orbital complex has been ongoing for five years," and "there was a temporary increase in the leak rate that was patched earlier this year..."

Former astronaut Bob Cabana emphasized that troubleshooting is ongoing during a brief livestreamed meeting on Wednesday. But NASA and Roscosmos "don't have a common understanding of what the likely root causes or the severity of the consequences of these leaks." "The Russian position is that the most probable cause of the cracks is high cycling caused by micro-vibrations," Cabana said, referring to flexing of metal and similar components that heat and cool as the ISS orbits in and out of sunlight. "NASA believes the PrK cracks are likely multi-causal — including pressure and mechanical stress, residual stress, material properties and environmental exposures," Cabana continued.

NASA and Russia disagree about whether "continued operations are safe", he added, but the remedy for now is to keep the hatch closed between the U.S. and Russian side as investigations continue.

The two agencies will continue meeting to seek "common understanding of the structural integrity", Cabana pledged, but he did not provide a timeline. Academic and industry experts will also be consulted.

Transportation

'Automotive Grade Linux' Will Promote Open Source Program Offices for Automakers (prnewswire.com) 28

Automotive Grade Linux is a collaborative open source project developing "an open platform from the ground up that can serve as the de facto industry standard" for fast development of new features. Automakers have joined with tech companies and suppliers to speed up development (and adoption) of "a fully open software stack for the connected car" — hosted at the Linux Foundation, and "with Linux at its core..."

And this week they created a new Open Source Program Office expert group, led by Toyota, to promote the establishment of Open Source Program Offices within the automotive industry, "and encourage the sharing of information and best practices between them." Open source software has become more prevalent across the automotive industry as automakers invest more time and resources into software development. Automakers like Toyota and Subaru are using open source software for infotainment and instrument cluster applications. Other open source applications across the automotive industry include R&D, testing, vehicle-to-cloud and fleet management. "Historically, there has been little code contributed back to the open source community," said Dan Cauchy, Executive Director of Automotive Grade Linux. "Often, this was because the internal procedures or IT infrastructure weren't in place to support open source contributions. The rise of software-defined vehicles has led to a growing trend of automakers not just using, but also contributing, to open source software. Many organizations are also establishing Open Source Program Offices to streamline and organize open source activities to better support business goals."

Automakers including Toyota, Honda, and Volvo have already established Open Source Program Offices. The new AGL OSPO Expert Group provides a neutral space for them to share pain points and collaborate on solutions, exchange information, and develop best practices that can help other automakers build their own OSPOs. "Toyota has been participating in AGL and the broader open source community for over a decade," said Masato Endo, Group Manager of Open Source Program Group, Toyota. "We established an OSPO earlier this year to promote the use of open source software internally and to help guide how and where we contribute. We are looking forward to working with other open source leaders to solve common problems, collaborate on best practices, and invigorate open source activities in the automotive industry."

The AGL OSPO EG is led by Toyota with support from Panasonic and AISIN Corporation.

NASA

Is NASA's Moon Rocket Getting Canceled? (futurism.com) 155

"NASA has squandered $27 billion on the SLS moon rocket -- $6 billion over budget and 5 years late," writes longtime Slashdot reader schwit1. "The SLS isn't reusable so even if they finished it -- it is already obsolete. It is clear to everyone that the boondoggle has failed but the newest plan is to find a way to blame Trump. There is a big desire for big changes." Futurism reports: According to Ars Technica senior space reporter Eric Berger's insider sources, there's an "at least 50-50" chance that the rocket "will be canceled." "Not Block 1B. Not Block 2," he added, referring to the variant that was used during NASA's uncrewed Artemis I test flight in 2022 and a more powerful design with a much higher translunar injection payload capacity, respectively. "All of it." To be clear, as Berger himself points out, we're still far "from anything being settled." Nonetheless, the reporter's sources have historically been highly reliable, suggesting the space agency may indeed be getting cold feet about continuing to pour billions of dollars into the non-reusable rocket. [...] "Honestly the people who will ultimately make this decision aren't even in place yet," Berger wrote in a followup tweet, likely referring to the incoming Trump administration. "But there is a big desire for big changes."
Space

Rocket Lab Signs First Neutron Launch Customer (spacenews.com) 19

Rocket Lab says it has signed the first customer for its Neutron launch vehicle, with a launch planned for mid-2025. SpaceNews reports: The company announced Nov. 12 that it signed a contract with an undisclosed "commercial satellite constellation operator" for two launches of Neutron, one in mid-2026 and the other in 2027, a deal that could lead to additional launches for the same customer. "We see this agreement as an important opportunity that signifies the beginning of a productive collaboration that could see Neutron deploy this particular customer's entire constellation," Peter Beck, chief executive of Rocket Lab, said in an earnings call Nov. 12 to discuss the company's third quarter financial results. [...]

Beck said Rocket Lab is "deep into the qualification testing" of flight hardware, including vehicle structures and the Archimedes engine, which was hotfired for the first time in August at the Stennis Space Center in Mississippi. "Our engine test cadence in Mississippi has doubled over the quarter, and we've bought multiple engines to the test stand," he said. Neutron is a key part of the company's ambitions to deploy its own constellation, something that Beck has hinted at in some previous earnings calls. His presentation called that constellation the third pillar for Rocket Lab, after launch services and spacecraft production, both of which support the constellation.

"We're not ready to reveal details on what this constellation or application may be," he said, "but I think it's important to understand the strong foundation we've built up across launch and space systems to enable it in due course." That includes Neutron, with Beck citing SpaceX's use of Falcon 9 to deploy its Starlink constellation. "Everything is irrelevant without a reusable high cadence launch. So, Neutron is really the key to unlocking that."

Space

JPL To Cut 5% of Workforce, Its Third Layoff This Year (behindtheblack.com) 46

An anonymous reader writes: JPL in California announced this week a layoff of 325 workers, about 5% of its workforce, the third major layoff imposed this year.

The JPL press release indicates the layoffs are because of NASA budget cutbacks, but does not provide any specificity. The cause centers mostly around NASA's decision to pause its Mars Sample Return project, which JPL was leading. From this report:

This is the third round of layoffs at JPL this year, a reduction spurred primarily by major budgetary cuts to the Mars Sample Return mission, which is managed by JPL. NASA directed $310 million this year to the effort to bring Mars rocks back to Earth, a steep drop from the $822.3 million it spent on the program the previous year.


Sci-Fi

Experts Testify US Is Running Secret UAP Programs (npr.org) 177

During a public joint hearing today titled "Unidentified Anomalous Phenomena: Exposing the Truth," four experts testified that the U.S. is running secret UAP programs, including crash retrieval and reverse-engineering programs for advanced nonhuman technology. Although the Pentagon maintains there's no evidence of alien spacecraft, witnesses like Luis Elizondo and Michael Gold argue that UAPs represent an intelligence enigma and call for open, stigma-free study to address potential security concerns and unknown scientific possibilities. NPR reports: Tim Gallaudet, retired rear admiral, U.S. Navy; CEO of Ocean STL Consulting, LLC
"Confirmation that UAPs are interacting with humanity came for me in January 2015," Gallaudet said in his written testimony (PDF). He describes being part of a pre-deployment naval exercise off the U.S. East Coast that culminated in the famous "Go Fast" video, in which a Navy F/A-18 jet's sensors recorded "an unidentified object exhibiting flight and structural characteristics unlike anything in our arsenal." He was among a group of commanders involved in the exercise who received an email containing the video, which was sent by the operations officer of Fleet Forces Command, Gallaudet said. "The very next day, the email disappeared from my account and those of the other recipients without explanation," he said.

Luis Elizondo, author and former Department of Defense official
Elizondo's written testimony (PDF) was brief and alleged that a secretive arms race is playing out on the global stage. "Let me be clear: UAP are real," he wrote. "Advanced technologies not made by our Government -- or any other government -- are monitoring sensitive military installations around the globe. Furthermore, the U.S. is in possession of UAP technologies, as are some of our adversaries." Elizondo is a former intelligence officer who later "managed a highly sensitive Special Access Program on behalf of the White House and the National Security Council," according to his official bio (PDF). "By 2012, [Elizondo] was the senior ranking person of the DOD's Advanced Aerospace Threat Identification Program, a secretive Pentagon unit that studied unidentified anomalous phenomena," his bio states, adding that he resigned in 2017.

Michael Gold, former NASA associate administrator of space policy and partnerships; member of NASA UAP Independent Study Team
Gold's written testimony (PDF) stressed the need for government agencies and academics to "overcome the pernicious stigma that continues to impede scientific dialogue and open discussions" about unexplained phenomena. "As the saying goes, the truth is out there," Gold said, "we just need to be bold enough and brave enough to face it."

Michael Shellenberger, founder of Public, a news outlet on the Substack platform
Shellenberger's testimony (PDF) ran to some 214 pages, including a lengthy timeline of UAP reports from 1947 to 2023. Shellenberger pressed the White House and Congress to act, calling for the adoption of UAP transparency legislation and cutting funds for any related programs that aren't disclosed to lawmakers. "UAP transparency is bi-partisan and critical to our national security," his written testimony stated.
You can watch the proceeding here.
Science

Cheap Fix Floated For Plane Vapor's Climate Damage (bbc.co.uk) 54

AmiMoJo writes: The climate-damaging vapors left behind by jet planes could be easily tackled, aviation experts say, with a new study suggesting they could be eliminated for a few pounds per flight. Jet condensation trails, or contrails, have spawned wild conspiracy theories alleging mind control and the spreading of disease, but scientists say the real problem is their warming effect.

"They create an artificial layer of clouds, which traps the heat from the Earth that's trying to escape to outer space," said Carlos Lopez de la Osa, from the Transport & Environment campaign group, which has carried out a new study on the solutions to contrails. "The scale of the warming that's associated with them is roughly having a similar impact to that of aviation carbon emissions."

Tweaking the flight paths of a handful of aircraft could reduce contrail warming by more than half by 2040, at a cost of less than $5.1 per flight. Geography and a flight's latitude have a strong influence on whether a contrail is warming. Time of day also influences the climate effects of contrails. Those formed by evening and night flights have the largest warming contribution. Seasonality is also important -- the most warming contrails tend to occur in winter. "Planes are already flying around thunderstorms and turbulence areas," Mr Lopez de la Osa said. "We will need to add one more constraint to flight planning, which is avoiding areas of contrail formation."

Space

New Study On Moons of Uranus Raises Chance of Life 37

A new analysis of data from NASA's Voyager 2 mission reveals that the planet Uranus and its five largest moons might harbor subsurface oceans and potential conditions for life. The BBC reports: Much of what we know about them was gathered by Nasa's Voyager 2 spacecraft which visited nearly 40 years ago. But a new analysis shows that Voyager's visit coincided with a powerful solar storm, which led to a misleading idea of what the Uranian system is really like. [...] So, for 40 years we have had an incorrect view of what Uranus and its five largest moons are normally like, according to Dr William Dunn of University College London. "These results suggest that the Uranian system could be much more exciting than previously thought. There could be moons there that could have the conditions that are necessary for life, they might have oceans below the surface that could be teeming with fish!".

It has been nearly 40 years since Voyager 2 last flew past the icy world and its moons. Nasa has plans to launch a new mission, the Uranus Orbiter and Probe, to go back for a closer look in 10 years' time. According to Nasa's Dr Jamie Jasinski, whose idea it was to re-examine the Voyager 2 data, the mission will need to take his results into account when designing its instruments and planning the scientific survey. "Some of the instruments for the future spacecraft are very much being designed with ideas from what we learned from Voyager 2 when it flew past the system when it was experiencing an abnormal event. So we need to rethink how exactly we are going to design the instruments on the new mission so that we can best capture the science we need to make discoveries." Nasa's Uranus probe is expected to arrive by 2045, which is when scientists hope to find out whether these far-flung icy moons, once thought of as being dead worlds, might have the possibility of being home to life.
The findings have been published in the journal Nature Astronomy.
Sci-Fi

Congress To Hold Another UFO/UAP Hearing (space.com) 137

Longtime Slashdot reader thephydes writes: The hearing will go ahead on November 13 at 11:30 ET (16:30 GMT). Apparently, it will "further pull back the curtain on secret UAP research programs conducted by the U.S. government, and undisclosed findings they have yielded," according to a House statement. It's driven by two republicans, Nancy Mace (R-S.C.) and Glenn Grothman (R-Wis.), who say: "Americans deserve to understand what the government has learned about UAP sightings, and the nature of any potential threats these phenomena pose. We can only ensure that understanding by providing consistent, systemic transparency. We look forward to hearing from expert witnesses on ways to shed more light and bring greater accountability to this issue." "Expert witnesses in the hearing will include Luis Elizondo, a decorated former counterintelligence officer who has claimed for years that the U.S. government is hiding knowledge of UAP, including materials recovered from crashed flying saucers," reports Space.com. "The House hearing will also include Tim Gallaudet, a retired U.S. Navy Rear Admiral who observed unidentified submersible objects, arguing that 'these underwater anomalies jeopardize US maritime security.'"

"Other speakers at the hearing include journalist Michael Shellenberger, who has also claimed the U.S. government is hiding UFO crash retrieval programs, and former NASA Associate Administrator of Space Policy and Partnerships Michael Gold, who is a member of NASA's independent UAP study team."
Hardware

New Thermal Material Provides 72% Better Cooling Than Conventional Paste (techspot.com) 43

"Researchers at the University of Texas have unveiled a new thermal interface material that could revolutionize cooling, outperforming top liquid metal solutions by up to 72% in heat dissipation," writes Slashdot reader jjslash. "This breakthrough not only improves energy efficiency but also enables higher-density data center setups, cutting cooling costs and energy usage significantly." TechSpot reports: Thanks to a mechanochemically engineered combination of the liquid metal alloy Galinstan and ceramic aluminum nitride, this thermal interface material, or TIM, outperformed the best commercial liquid metal cooling products by a staggering 56-72% in lab tests. It allowed dissipation of up to 2,760 watts of heat from just a 16 square centimeter area. The material pulls this off by bridging the gap between the theoretical heat transfer limits of these materials and what's achieved in real products. Through mechanochemistry, the liquid metal and ceramic ingredients are mixed in an extremely controlled way, creating gradient interfaces that heat can flow across much more easily.

Beyond just being better at cooling, the researchers claim that the higher performance reduces the energy needed to run cooling pumps and fans by up to 65%. It also unlocks the ability to cram more heat-generating processors into the same space without overheating issues. [...] As for how you can get your hands on the material: it's yet to make it out of the labs. The UT team has so far only tested it successfully at small scales but is now working on producing larger batches to put through real-world trials with data center partners.
The material has been detailed in a paper published in the journal Nature Nanotechnology.
Space

SpaceX To Attempt Daring Orbital Refueling Test of Starship (gizmodo.com) 98

SpaceX plans an ambitious in-orbit refueling test between two Starships in March 2025. "The orbital demonstration is a major step for Starship, and a crucial part of SpaceX's capability of delivering NASA's Artemis mission to the Moon," reports Gizmodo. The plans were unveiled during Spaceflight Now's recent interview (source: YouTube) with Kent Chojnacki, the deputy manager for NASA's Human Landing System program. Gizmodo reports: SpaceX is under a $53.2 million contract with NASA, signed in 2020, to use Starship tankers for in-orbit propellant transfer. During its third test flight, SpaceX transferred around 10 metric tons of liquid oxygen from Starship's header tank to its main tank while it was in space. The upcoming demonstration, however, requires a lot more of the launch vehicle. Two Starships will launch to low Earth orbit around three to four weeks apart, the spacecraft will meet and dock in orbit, and one will transfer propellant to another. After the demonstration, the two Starships will undock from one another and deorbit.

"Once you've done that, you've really cracked open the opportunity to move massive amounts of payload and cargo outside of the Earth's sphere," Chojnacki said during the interview. The in-flight propellant transfer tests are set to conclude in the summer. With in-flight refueling, NASA is aiming to develop technologies to "enable long-term cryogenic fluid management, which is essential for establishing a sustainable presence on the Moon and enabling crewed missions to Mars," the space agency stated when the contract was signed.

SpaceX is developing a version of Starship to land humans on the Moon in September 2026 as part of NASA's Artemis 3 mission. To prepare for the Moon mission, SpaceX is expected to launch between eight and 16 propellant tanker Starships into low Earth orbit in rapid succession. Each of the tankers will carry around 100 to 150 tons of liquid oxygen and liquid methane and will dock with a larger fuel depot. The orbiting depot will then connect with the Human Landing System Starship, filling its massive 1,200-ton fuel tanks. Once refueled, the Starship lander will continue its journey toward the Moon.

Communications

Somebody Moved UK's Oldest Satellite, No-One Knows Who or Why (bbc.com) 52

The UK's oldest satellite, Skynet-1A, mysteriously shifted from its original orbit above East Africa to a new position over the Americas, likely due to a mid-1970s command whose origins remain unknown. "The question is who that was and with what authority and purpose?" asks the BBC. From the report: "It's still relevant because whoever did move Skynet-1A did us few favours," says space consultant Dr Stuart Eves. "It's now in what we call a 'gravity well' at 105 degrees West longitude, wandering backwards and forwards like a marble at the bottom of a bowl. And unfortunately this brings it close to other satellite traffic on a regular basis. "Because it's dead, the risk is it might bump into something, and because it's 'our' satellite we're still responsible for it," he explains.

Dr Eves has looked through old satellite catalogues, the National Archives and spoken to satellite experts worldwide, but he can find no clues to the end-of-life behaviour of Britain's oldest spacecraft. It might be tempting to reach for a conspiracy theory or two, not least because it's hard to hear the name "Skynet" without thinking of the malevolent, self-aware artificial intelligence (AI) system in The Terminator movie franchise. But there's no connection other than the name and, in any case, real life is always more prosaic.

Earth

SpaceX Alums Find Traction On Earth With Their Mars-Inspired CO2-To-Fuel Tech (techcrunch.com) 49

An anonymous reader quotes a report from TechCrunch: A trend has emerged among a small group of climate tech founders who start with their eyes fixed on space and soon realize their technology would do a lot more good here on Earth. Halen Mattison and Luke Neise fit the bill. Mattison spent time at SpaceX, while Neise worked at Vanderbilt Aerospace Design Laboratory and Varda Space Industries. The pair originally wanted to sell reactors to SpaceX that could turn carbon dioxide into methane for use on Mars. Today, they're building them to replace natural gas that's pumped from underground. Their company, General Galactic, which emerged from stealth in April, has built a pilot system that can produce 2,000 liters of methane per day. Neise, General Galactic's CTO, told TechCrunch that he expects that figure to rise as the company replaces off-the-shelf components with versions designed in-house.

"We think that's a big missing piece in the energy mix right now," said Mattison, the startup's CEO. "Being able to own our supply chains, to be able to fully control all of the parameters, to challenge the requirements between components, all of that unlocks some real elegance in the engineering solution." At commercial scale, the company's reactors will be assembled using mass production techniques. It's a contrast to how most petrochemical and energy facilities are built today. General Galactic is focused on producing methane. However, Mattison said the company isn't necessarily looking to displace the fuel from heating and energy. "Those are generally going toward electrification," he said. Instead, it intends to sell its methane to companies that use it as an ingredient or to power a process, like in chemical or plastic manufacturing. The company isn't ruling out transportation entirely either. Mattison hinted that General Galactic is working on other hydrocarbons that could be used for transportation, like jet fuel. "Stay tuned," he said.
General Galactic plans to deploy its first modules next year. The startup "hopes its modules will be able to plug into existing infrastructure, speeding its adoption relative to other fuels like hydrogen," notes TechCrunch.

Slashdot Top Deals