"Even black holes have edge cases," writes Astronomy magazine contributing editor Steve Nadis, in an article in Quanta magazine (republished today by Wired): Black holes rotate in space. As matter falls into them, they start to spin faster; if that matter has charge, they also become electrically charged. In principle, a black hole can reach a point where it has as much charge or spin as it possibly can, given its mass. Such a black hole is called "extremal" — the extreme of the extremes. These black holes have some bizarre properties. In particular, the so-called surface gravity at the boundary, or event horizon, of such a black hole is zero. "It is a black hole whose surface doesn't attract things anymore," said Carsten Gundlach, a mathematical physicist at the University of Southampton. But if you were to nudge a particle slightly toward the black hole's center, it would be unable to escape.

In 1973, the prominent physicists Stephen Hawking, James Bardeen and Brandon Carter asserted that extremal black holes can't exist in the real world — that there is simply no plausible way that they can form. Nevertheless, for the past 50 years, extremal black holes have served as useful models in theoretical physics. "They have nice symmetries that make it easier to calculate things," said Gaurav Khanna of the University of Rhode Island, and this allows physicists to test theories about the mysterious relationship between quantum mechanics and gravity. Now two mathematicians have proved Hawking and his colleagues wrong. The new work — contained in a pair of recent papers by Christoph Kehle of the Massachusetts Institute of Technology and Ryan Unger of Stanford University and the University of California, Berkeley — demonstrates that there is nothing in our known laws of physics to prevent the formation of an extremal black hole.

Their mathematical proof is "beautiful, technically innovative and physically surprising," said Mihalis Dafermos, a mathematician at Princeton University (and Kehle's and Unger's doctoral adviser). It hints at a potentially richer and more varied universe in which "extremal black holes could be out there astrophysically," he added. That doesn't mean they are. "Just because a mathematical solution exists that has nice properties doesn't necessarily mean that nature will make use of it," Khanna said. "But if we somehow find one, that would really [make] us think about what we are missing." Such a discovery, he noted, has the potential to raise "some pretty radical kinds of questions." Before Kehle and Unger's proof, there was good reason to believe that extremal black holes couldn't exist.
Hawking, Bardeen, and Carter believed there was no way an extremal black hole could form, according to the article, and "in 1986, a physicist named Werner Israel seemed to put the issue to rest."

But the two mathematicians, studying the formation of electrically charged black holes, stumbled into a counterexample — and along the way "also constructed two other solutions to Einstein's equations of general relativity that involved different ways of adding charge to a black hole. Having disproved Bardeen, Carter and Hawking's hypothesis in three different contexts, the work should leave no doubt, Unger said... "This is a beautiful example of math giving back to physics," said Elena Giorgi, a mathematician at Columbia University....

In the meantime, a better understanding of extremal black holes can provide further insights into near-extremal black holes, which are thought to be plentiful in the universe. "Einstein didn't think that black holes could be real [because] they're just too weird," Khanna said. "But now we know the universe is teeming with black holes."

For similar reasons, he added, "we shouldn't give up on extremal black holes. I just don't want to put limits on nature's creativity."

"It is with great relief that I welcome you home!" SpaceX COO Gwynne Shotwell posted on X. "This mission was even more extraordinary than I anticipated."

"SpaceX's Polaris Dawn crew is home," reports CNN, "capping off a five-day mission to orbit — which included the world's first commercial spacewalk — by splashing down in the Gulf of Mexico." The Crew Dragon capsule carrying four astronauts landed off the coast of Dry Tortugas, Florida, at 3:37 a.m. ET Sunday.

The Polaris Dawn mission made history as it reached a higher altitude than any human has traveled in five decades. [870 miles (1,400 kilometers) — beating the 853-mile record set in 1966 by NASA's Gemini 11 mission.] A spacewalk conducted early Thursday morning also marked the first time such an endeavor has been completed by a privately funded and operated mis.sion.

But returning to Earth is among the most dangerous stretches of any space mission. To safely reach home, the Crew Dragon capsule carried out what's called a "de-orbit burn," orienting itself as it prepared to slice through the thickest part of Earth's atmosphere. The spacecraft then reached extremely hot temperatures — up to 3,500 degrees Fahrenheit (1,900 degrees Celsius) — because of the pressure and friction caused by hitting the air while still traveling around 17,000 miles per hour (27,000 kilometers per hour). The crew, however, should have remained at comfortable temperatures, protected by the Crew Dragon's heat shield, which is located on the bottom of the 13-foot-wide (4-meter-wide) capsule. Dragging against the air began to slow the vehicle down before the Crew Dragon deployed parachutes that further decelerated its descent. Having hit the ocean, the spacecraft briefly bobbed around in the water until rescue crews waiting nearby hauled it out of the ocean and onto a special boat, referred to as the "Dragon's nest." Final safety checks took place there before the crew disembarked from the capsule and began the journey back to dry land.
You can watch video of the splashdown on YouTube.

While in space, the crew performed 40 science experiments and research, according to the article. "Gillis, a trained violinist, also brought her instrument along for the mission and delivered a rendition of 'Rey's Theme' from "Star Wars: The Force Awakens." (Slashdot reader SuperKendall points out that the "Rey's Theme" rendition "was not just the astronaut playing violin in space, but was in conjunction with young adult orchestras around the world.")

SpaceX's COO said the performance "made me tear up. Thank you all for taking this journey."

More details on that report about NASA from the Washington Post: NASA is 66 years old and feeling its age. Brilliant engineers are retiring. Others have fled to higher-paying jobs in the private space industry. The buildings are old, their maintenance deferred. The Apollo era, with its huge taxpayer investment, is a distant memory. The agency now pursues complex missions on inadequate budgets. This may be an unsustainable path for NASA, one that imperils long-term success. That is the conclusion of a sweeping report, titled "NASA at a Crossroads," written by a committee of aerospace experts and published Tuesday by the National Academies of Sciences, Engineering and Medicine. The report suggests that NASA prioritizes near-term missions and fails to think strategically. In other words, the space agency isn't sufficiently focused on the future.

NASA's intense focus on current missions is understandable, considering the unforgiving nature of space operations, but "one tends to neglect the probably less glamorous thing that will determine the success in the future," the report's lead author, Norman Augustine, a retired Lockheed Martin chief executive, said Tuesday. He said one solution for NASA's problems is more funding from Congress. But that may be hard to come by, in which case, he said, the agency needs to consider canceling or delaying costly missions to invest in more mundane but strategically important institutional needs, such as technology development and workforce training. Augustine said he is concerned that NASA could lose in-house expertise if it relies too heavily on the private industry for newly emerging technologies. "It will have trouble hiring innovative, creative engineers. Innovative, creative engineers don't want to have a job that consists of overseeing other people's work," he said...

The report is hardly a blistering screed. The tone is parental. It praises the agency — with a budget of about $25 billion — for its triumphs while urging more prudent decision-making and long-term strategizing.

NASA pursues spectacular missions. It has sent swarms of robotic probes across the solar system and even into interstellar space. Astronauts have continuously been in orbit for more than two decades. The most ambitious program, Artemis, aims to put astronauts back on the moon in a few short years. And long-term, NASA hopes to put astronauts on Mars. But a truism in the industry is that space is hard. The new report contends that NASA has a mismatch between its ambitions and its budget, and needs to pay attention to fundamentals such as fixing its aging infrastructure and retaining in-house talent. NASA's overall physical infrastructure is already well beyond its design life, and this fraction continues to grow," the report states.
NASA Administrator Bill Nelson said the report "aligns with our current efforts to ensure we have the infrastructure, workforce, and technology that NASA needs for the decades ahead," according to the article.

Nelson added that the agency "will continue to work diligently to address the committee's recommendations."

Ars Technica's Stephen Clark reports: A panel of independent experts reported this week that NASA lacks funding to maintain most of its decades-old facilities, could lose its engineering prowess to the commercial space industry, and has a shortsighted roadmap for technology development. "NASA's problem is it always seems to have $3 billion more program than it has of funds," said Norm Augustine, chair of the National Academies panel chartered to examine the critical facilities, workforce, and technology needed to achieve NASA's long-term strategic goals and objectives. Augustine said a similar statement could sum up two previous high-level reviews of NASA's space programs that he chaired in 1990 and 2009. But the report released Tuesday put NASA's predicament in stark terms.

"In NASA's case, the not-uncommon tendency in a constrained budget environment to prioritize initiating new missions as opposed to maintaining and upgrading existing support assets has produced an infrastructure that would not be viewed as acceptable under most industrial standards," the panel wrote in its report. "In fact, during its inspection tours, the committee saw some of the worst facilities many of its members have ever seen." All of NASA's centers have facilities the agency considers marginal, but Johnson Space Center in Houston has the facilities with the worst average score. Johnson oversees astronaut training and is home to NASA's Mission Control Center for the International Space Station and future Artemis lunar missions. The Jet Propulsion Laboratory in California, which develops and operates many of NASA's robotic interplanetary probes, and Stennis Space Center in Mississippi, used for rocket engine testing, are the only centers without a poor infrastructure score.

These ratings cover things like buildings and utilities, not the specific test rigs or instruments inside them. "You can have a world-class microscope and materials lab, but if the building goes down, that microscope is useless to you," [Erik Weiser, NASA's director of facilities and real estate] told the National Academies panel in a meeting last year. The panel recommended that Congress direct NASA to establish an annually replenished revolving working capital fund to pay for maintenance and infrastructure upgrades. Other government agencies use similar funds for infrastructure support. "This is something that will require federal legislation," said Jill Dahlburg, a member of the National Academies panel and former superintendent of the space science division at the Naval Research Laboratory.

An anonymous reader quotes a report from CBC News: Stranded astronauts Butch Wilmore and Suni Williams said Friday it was hard to watch their Boeing capsule return to Earth without them. It was their first public comments since last week's return of the Boeing Starliner capsule that took them to the International Space Station in June. They remained behind after NASA determined the problem-plagued capsule posed too much risk for them to ride back in. "That's how it goes in this business," said Williams, adding that "you have to turn the page and look at the next opportunity."

Wilmore and Williams are now full-fledged station crew members, chipping in on routine maintenance and experiments. They, along with seven others on board, welcomed a Soyuz spacecraft carrying two Russians and an American earlier this week, temporarily raising the station population to 12, a near record. NASA astronauts Butch Wilmore and Suni Williams spoke to the press on Friday for the first time since their Boeing Starliner capsule returned to Earth without them. The two, who have been on the International Space Station since June 6, said they are taking the mission's unexpected extension into 2025 in stride -- even if it means they've had to change their voting plans. The transition to station life was "not that hard" since both had previous stints there, said Williams, who will soon take over as station commander. "This is my happy place. I love being up here in space," she said.

The two Starliner test pilots -- both retired U.S. navy captains and longtime NASA astronauts — will stay at the orbiting laboratory until late February. They have to wait for a SpaceX capsule to bring them back. That spacecraft is due to launch later this month with a reduced crew of two, with two empty seats for Wilmore and Williams for the return leg. The duo said they appreciated all the prayers and well wishes from strangers back home. Wilmore said he will miss out on family milestones such as being around for his youngest daughter's final year of high school. The astronauts, who prepared for eight days in space, will now be up there for eight months, which could have a greater impact on the body. "It is a bit of a change from a sprint to a marathon," said Dr. Adam Sirek of the Canadian Society of Aerospace Medicine.

Two astronauts, billionaire Jared Isaacman and SpaceX engineer Sarah Gillis, completed the world's first private spacewalk outside a SpaceX capsule, testing new spacesuits and procedures in a risky mission that pushes the boundaries of commercial spaceflight. Reuters reports: The astronauts on the Polaris Dawn mission went one at a time, each spending about 10 minutes outside the gumdrop-shaped Crew Dragon capsule on a tether, as Elon Musk's company again succeeded in pushing the boundaries of commercial spaceflight. Jared Isaacman, a pilot and the founder of electronic payments company Shift4, exited first, followed by SpaceX engineer Sarah Gillis, while crewmates Scott Poteet and Anna Menon watched from inside. The whole process, unfolding about 450 miles (730 km) above Earth, lasted an hour and 46 minutes. The four astronauts have been orbiting Earth since Tuesday's launch from Florida. Isaacman is bankrolling the Polaris mission, as he did his Inspiration4 flight with SpaceX in 2021.

Streamed live on SpaceX's website, the mission tested trailblazing equipment including slim spacesuits and a process to fully depressurize the Crew Dragon cabin - technology that Musk hopes to advance for ambitious future private missions to Mars. "Back at home we all have a lot of work to do. But from here, Earth sure looks like a perfect world," Isaacman said after emerging from the spacecraft, silhouetted with the half-lit planet glittering below. It was one of the riskiest missions yet for SpaceX, the only private company that has proven to be capable of routinely sending people to and from Earth's orbit. "Today's success represents a giant leap forward for the commercial space industry and @NASA's long-term goal to build a vibrant U.S. space economy," said NASA Administrator Bill Nelson.

You can watch a livestream recording of the Polaris Dawn Mission here.

A new survey released on Tuesday found that Americans used over 100 trillion megabytes of wireless data last year -- a 36% increase from the previous year and the largest single-year increase in the history of wireless data consumption. Reuters reports: The increase -- 26 trillion MBs over 2022 -- comes as a growing number of 5G wireless devices are being used, said wireless industry association CTIA that represents major wireless carriers like Verizon, AT&T, T-Mobile, and technology firms. The total number of wireless connections rose to 558 million last year, up 6% over 2022, the survey found.

Demand for spectrum use is soaring, driven in part by more wireless use in advancements including drones, self-driving vehicles, space missions and precision agriculture. The survey said the number of minutes Americans spent talking on the phone fell slightly from 2.5 trillion in 2022 to 2.4 trillion in 2023 and text messages were about the same at 2.1 trillion in 2023 over the prior year.

An anonymous reader shares a column: The PS5 Pro's announcement yesterday wasn't a surprise. What was a surprise was the price: at $699.99, it debuts as Sony's most expensive console ever. It brought back memories of the PS3's controversial price tag, a console that when adjusted for inflation is the same $779 price point of a PS5 Pro with the additional disc drive. It's a very expensive PlayStation, and I fear it's a test of what's to come for next-gen console pricing.

For years, console gamers have been used to purchasing hardware at a significantly reduced price compared to what you could build yourself in the PC gaming space. Yes, you can find components that match the PS5 or Xbox Series X on paper, but it's still difficult to hit the price points that consoles sell for, especially when they're discounted during promotions. Besides, the easy plug-and-play model, simplified UI, and hassle-free warranty process are all big benefits over having to build or find a good prebuilt PC and then deal with Windows and driver updates. Consoles sell in their millions because they're far more consumer-friendly than PCs.

An anonymous reader quotes a report from the Associated Press: A daredevil billionaire rocketed back into orbit Tuesday, aiming to perform the first private spacewalk and venture farther than anyone since NASA's Apollo moonshots. Unlike his previous chartered flight, tech entrepreneur Jared Isaacman shared the cost with SpaceX this time around, which included developing and testing brand new spacesuits to see how they'll hold up in the harsh vacuum. If all goes as planned, it will be the first time private citizens conduct a spacewalk, but they won't venture away from the capsule. Considered one of the riskiest parts of spaceflight, spacewalks have been the sole realm of professional astronauts since the former Soviet Union popped open the hatch in 1965, closely followed by the U.S. Today, they are routinely done at the International Space Station.

Isaacman, along with a pair of SpaceX engineers and a former Air Force Thunderbirds pilot, launched before dawn aboard a SpaceX Falcon 9 rocket from Florida. The spacewalk is scheduled for Thursday, midway through the five-day flight. But first the passengers are shooting for way beyond the International Space Station -- an altitude of 870 miles (1,400 kilometers), which would surpass the Earth-lapping record set during NASA's Project Gemini in 1966. Only the 24 Apollo astronauts who flew to the moon have ventured farther. The plan is to spend 10 hours at that height -- filled with extreme radiation and riddled with debris -- before reducing the oval-shaped orbit by half. Even at this lower 435 miles (700 kilometers), the orbit would eclipse the space station and even the Hubble Space Telescope, the highest shuttle astronauts flew.

All four wore SpaceX's spacewalking suits because the entire Dragon capsule will be depressurized for the two-hour spacewalk, exposing everyone to the dangerous environment. Isaacman and SpaceX's Sarah Gillis will take turns briefly popping out of the hatch. They'll test their white and black-trimmed custom suits by twisting their bodies. Both will always have a hand or foot touching the capsule or attached support structure that resembles the top of a pool ladder. There will be no dangling at the end of their 12-foot (3.6-meter) tethers and no jetpack showboating. Only NASA's suits at the space station come equipped with jetpacks, for emergency use only.

A month before its planned delivery after years of delay and cost growth, RTX's $7.6 billion ground network to control GPS satellites is still marred by problems that may further stall its acceptance by the US Space Force, congressional auditors said Monday. From a report: RTX's system of 17 ground stations for current and improved GPS satellites was supposed to be ready by October, when it would undergo a series of intense Space Force tests to assess whether it can be declared operational by December 2025. The system continues to draw the ire of lawmakers because it's running more than seven years late in a development phase that's about 73% costlier than initial projections.

Two rounds of testing by the company have been "marked by significant challenges that drove delays to the program's schedule," the Government Accountability Office said Monday in a broad review of the US military's GPS program, including improvements intended to block jamming by adversaries.

The Next Generation Operational Control System, known as OCX, is intended to provide improvements, including access to more secure, jam-resistant software for the military's use of the GPS navigation system, which is also depended on by civilians worldwide. "The program faces challenges from product deficiencies" that "create a risk of further delay," the Pentagon's Defense Contract Management Agency told the GAO, adding that it expects RTX at the earliest to deliver OCX by December.

"China is on track to launch its Tianwen-3 mission to Mars in 2028, two years earlier than previously planned," writes the South China Morning Post, a change that one space policy research believes "suggests a rising confidence by China in its ability to get the technology right for the complex operation." On Thursday, Liu Jizhong, chief designer of China's Mars mission, told the Second International Conference on Deep Space Exploration in Huangshan, Anhui province, that the team aimed to bring back around 600 grams (21 oz) of Martian soil... A 2028 launch date should see Martian samples returned to Earth around July 2031, according to a previous presentation made by Tianwen-1 mission lead Sun Zezhou at Nanjing University in 2022.
The mission will actually consist of two launches from Earth, reports Space News: Two Long March 5 rocket launches will carry a lander and ascent vehicle and an orbiter and return module respectively. Entry, descent and landing will build on technology used for the Tianwen-1 rover landing. The mission may also include a helicopter and a six-legged crawling robot for collecting samples away from the landing site...

NASA is working on its own, more complex Mars sample return mission. However the program is being reassessed, following projected cost overruns. Studies are being conducted to identify concepts that can deliver samples faster and cheaper than current plans.

Liu stated that the search for evidence of life is the Tianwen-3's top scientific goal, according to state media China Central Television (CCTV). Earlier reporting notes that potential landing areas will be selected based partly on astrobiological relevance. This includes environments potentially suitable for the emergence of life and its preservation, such as sedimentary or hydrothermal systems, evidence of past aqueous activity and geological diversity.
"China states that it plans to work with scientists worldwide to cooperatively study and share Martian samples and data," according to the article: The China National Space Administration has made samples from its Chang'e-5 lunar nearside sample return mission available to research applications for international researchers. The same is expected for the recently-completed Chang'e-6 lunar farside mission."

Further ahead, Tianwen-3 will include partnering with countries and research institutions to define the objectives and tasks of a future Mars research station. This will include analyzing requirements, conducting conceptual studies, design implementation plans, and tackling key technological challenges.
Thanks to Slashdot reader Iamthecheese for sharing the news.

Wired interviews America's foreign policy chief, Secretary of State Antony Blinken, about U.S. digital polices, starting with a new "cybersecurity bureau" created in 2022 (which Wired previously reported includes "a crash course in cybersecurity, telecommunications, privacy, surveillance, and other digital issues.") Look, what I've seen since coming back to the State Department three and a half years ago is that everything happening in the technological world and in cyberspace is increasingly central to our foreign policy. There's almost a perfect storm that's come together over the last few years, several major developments that have really brought this to the forefront of what we're doing and what we need to do. First, we have a new generation of foundational technologies that are literally changing the world all at the same time — whether it's AI, quantum, microelectronics, biotech, telecommunications. They're having a profound impact, and increasingly they're converging and feeding off of each other.

Second, we're seeing that the line between the digital and physical worlds is evaporating, erasing. We have cars, ports, hospitals that are, in effect, huge data centers. They're big vulnerabilities. At the same time, we have increasingly rare materials that are critical to technology and fragile supply chains. In each of these areas, the State Department is taking action. We have to look at everything in terms of "stacks" — the hardware, the software, the talent, and the norms, the rules, the standards by which this technology is used.

Besides setting up an entire new Bureau of Cyberspace and Digital Policy — and the bureaus are really the building blocks in our department — we've now trained more than 200 cybersecurity and digital officers, people who are genuinely expert. Every one of our embassies around the world will have at least one person who is truly fluent in tech and digital policy. My goal is to make sure that across the entire department we have basic literacy — ideally fluency — and even, eventually, mastery. All of this to make sure that, as I said, this department is fit for purpose across the entire information and digital space.
Wired notes it was Blinken's Department that discovered China's 2023 breach of Microsoft systems. And on the emerging issue of AI, Blinken cites "incredible work done by the White House to develop basic principles with the foundational companies." The voluntary commitments that they made, the State Department has worked to internationalize those commitments. We have a G7 code of conduct — the leading democratic economies in the world — all agreeing to basic principles with a focus on safety. We managed to get the very first resolution ever on artificial intelligence through the United Nations General Assembly — 192 countries also signing up to basic principles on safety and a focus on using AI to advance sustainable development goals on things like health, education, climate. We also have more than 50 countries that have signed on to basic principles on the responsible military use of AI. The goal here is not to have a world that is bifurcated in any way. It's to try to bring everyone together.

An anonymous reader shared this report from CNBC: Britain's competition watchdog on Friday issued a statement of objections over Google's ad tech practices, which the regulator provisionally found are impacting competition in the U.K. In a statement, the Competition and Markets Authority alleged that the U.S. internet search titan "has harmed competition by using its dominance in online display advertising to favour its own ad tech services." The "vast majority" of the U.K.'s thousands of publishers and advertisers use Google's technology in order to bid for and sell space to display ads in a market where players were spending £1.8 billion annually as of a 2019 study, according to the CMA.

The regulator added that it is also "concerned that Google is actively using its dominance in this sector to preference its own services." So-called "self-preferencing" of services by technology giants is a key concern for regulators scrutinizing these companies. The CMA further noted that Google disadvantages ad technology competitors, preventing them from competing on a "level playing field...." In the CMA's decision Friday, the watchdog said that, since 2015, Google has abused its dominant position as the operator of both ad buying tools "Google Ads" and "DV360," and of a publisher ad server known as "DoubleClick For Publishers," in order to strengthen the market position of its advertising exchange, AdX...

AdX, on which Google charges its highest fees to advertisers, is the "centre of the ad tech stack" for the company, the CMA said, with Google taking roughly 20% of the amount for each bid that's processed on its platform.

The European Space Agency (ESA) has successfully 3D printed the first metal part aboard the International Space Station. This achievement marks a significant advancement in in-orbit manufacturing that could enable the production of essential spare parts and tools for future long-duration space missions. "The first metal shape was produced in August, and three more are planned as part of the experiment," notes The Register. "All four will eventually be returned to Earth for analysis -- two to ESA's technical center, ESTEC, in the Netherlands, one to the agency's astronaut training center in Cologne, and the last sample to the Technical University of Denmark." From the report: During a panel discussion following the UK premiere of Fortitude, a film about the emerging commercial space industry, Advenit Makaya, Advanced Manufacturing Engineer at ESA, remarked on the potential for recycling space debris in the process rather than having to rely on raw materials launched to the ISS. Rob Postema, ESA Project Manager for Metal 3D, told The Register that the agency was indeed looking at "circular" solutions in its drive for greater sustainability. However, don't hold your breath for putting bits of space garbage into one end and getting shiny metal parts out of the other: "A timeline is difficult to indicate, some early results are achieved with ground activities, ready to evaluate solutions in space."

The printer is overseen from the ground and operated for around four hours per day. The ground team has to check each layer via images and a scan of the surface area; printing a sample can take 10-25 days. However, Postema said: "Through automated control of the printing process as well as continuous operations, this can be substantially reduced." Knick-knacks from orbits are all well and good, but could something more substantial be produced? Yes, although not with this demonstrator, which can print to the outer dimensions of a soft drink can. Postema noted that while the demonstrator could manage smaller parts, either as a single unit or as part of larger structures, "there are definitely opportunities to create 3D shapes and parts with this technology larger than what we have done with this Technology Demonstrator."

Boeing's "beleaguered" Starliner spacecraft "successfully landed in New Mexico just after midnight Eastern time," reports NPR: After Starliner made a picture-perfect landing, Stich told reporters that the spacecraft did well during its return flight. "It was a bullseye landing," he said. "It's really great to get the spacecraft back...." He said while he and others on the team felt happy about the successful landing, "there's a piece of us, all of us, that we wish it would've been the way we had planned it" with astronauts on board when it landed...

Now that Starliner is back on the ground, Boeing and NASA will further analyze the thrusters to see if modifying the spacecraft or how it's flown could keep the thrusters from overheating in the future.
Futurism explains why NASA wanted an uncrewed Starliner flight: While attempting to duplicate the issue at NASA's White Sands Test Facility in New Mexico, engineers eventually found what appeared to be the smoking gun, as SpaceNews' Jeff Foust details in a detailed new breakdown of the timeline. A Teflon seal in a valve known as a "poppet" expanded as it was being heated by the nearby thrusters, significantly constraining the flow of the oxidizer — a disturbing finding, because it greatly degraded the thrusters' performance.

Worse, without being able to perfectly replicate and analyze the issue in the near vacuum of space, engineers weren't entirely sure how the issue was actually playing out in orbit... While engineers found that the thrusters had returned to a more regular shape after being fired in space, they were worried that similar deformations might take place during prolonged de-orbit firings.

A lot was on the line. Without perfect control over the thrusters, NASA became worried that the spacecraft could careen out of control. "For me, one of the really important factors is that we just don't know how much we can use the thrusters on the way back home before we encounter a problem," NASA associate administrator for space operations Ken Bowersox said, as quoted by SpaceNews.
Now CBS News reports that "the road ahead is far from clear" for Starliner: The service module was jettisoned as planned before re-entry, burning up in the atmosphere, and engineers will not be able to examine the hardware to pin down exactly what caused the helium leaks and degraded thruster performance during the ship's rendezvous with the station. Instead, they will face more data analysis, tests and potential redesigns expected to delay the next flight, with or without astronauts aboard, to late next year at the earliest.

"Even though it was necessary to return the spacecraft uncrewed, NASA and Boeing learned an incredible amount about Starliner in the most extreme environment possible," Ken Bowersox, space operations director at NASA Headquarters, said in a statement. "NASA looks forward to our continued work with the Boeing team to proceed toward certification of Starliner for crew rotation missions to the space station," Bowersox added. In any case, the successful landing was a shot in the arm for Boeing engineers and managers, who insisted the Starliner could have safely brought Wilmore and Williams back to Earth.

Steve Stich, manager of NASA's commercial crew program, agreed that if the crew had been on board "it would have been a safe, successful landing."
Two details about the astronauts now waiting for their February return flight from the International Space Station.

• NPR reports that "in case the space station suffers an emergency that forces an evacuation before that capsule arrives, the station's crew had to jerry-rig two extra seats in a different SpaceX spacecraft that's currently docked there."

• Space.com reports that when the uncrewed Starliner returned, "Among the gear that it carried home were the 'Boeing Blue' spacesuits that Williams and Wilmore wore aboard the capsule. The astronauts have no need for them now. "The suits are not compatible," Steve Stich, manager of NASA's Commercial Crew Program, said during a press conference on Wednesday (Sept. 4). "So the Starliner suits would not work in Dragon, and vice versa."

In a newsletter for Bloomberg, Ashley Carman discusses the rising trend of long podcasts and their surprising popularity among listeners. "By today's standards of interminable podcast discussions, a nearly three-hour recording isn't even particularly notable," she writes, highlighting recent episodes from Joe Rogan (2 hours; 16 minutes with Adam Sandler), Lex Fridman (8 hours; 37 minutes with Elon Musk), and the Acquired podcast (3 hours; 38 minutes with Lockheed Martin). "Increasingly, podcasters are pushing the outer limits of episode length while stress testing the endurance of their audiences. Popular podcast gabfests can now run on for half a workday or longer." From the report: One might assume such marathon episodes must be the result of a hands-off approach to editing. But this is not the case, said Ben Gilbert, co-host of the Acquired podcast. Every month, he and his co-host David Rosenthal release a three- to four-hour podcast, detailing the story of a specific company. The in-depth histories, he said, are the result of nine-hour recording sessions and a month of research.

"It's not important to ship every good minute," Gilbert said. "It's important to ship only great minutes. If you're actually intellectually honest with yourself, that's how to release a really good product." Even with the longer runtimes, he said, their audience listens to the vast majority of each episode. Consider their deep dive on Lockheed Martin, which runs for three hours and 38 minutes. On Apple Podcasts, the average listener consumed 70% of the show, he said. An episode on Nike, which clocks in at upwards of four hours, had an average consumption rate of 68%. "Every time we made something longer... people only seemed to love it more," he said. On the show's website, the hosts describe the episodes as "conversational audiobooks." [...]

[Jack Sylvester, executive director at Flight Studio, the Bartlett-founded podcast company behind Diary of a CEO] said the team can view data around how much of the audience consumes episodes on YouTube's TV app versus on a phone, tablet or computer. TV usage, he said, is ticking up. To give viewers a reason to keep the show on as their primary viewing experience, they're now making sure the videos have a top-quality polish. Still, in a world in which people scoff at the prospect of a three-hour movie -- and short-form video is the dominant consumption trend in entertainment -- these podcasters are eagerly meandering in the opposite direction. "The short-form obsession ended up creating white space for us," said Gilbert of Acquired. "Whenever you have a trend, that means there's people who feel left behind and want to flock to something new. This sets us apart."

"Earth.com has an interesting article about the temporary "disappearance" of Saturn's rings in about six months," writes longtime Slashdot reader YVRGeek. From the report: Come March 2025, Saturn's majestic rings will become virtually invisible to earth-based observers. This phenomenon occurs due to the unique tilt of Saturn's axis, which will position the rings edge-on to our line of sight. [...] Saturn's axial tilt, which is the angle its axis leans compared to its orbit around the Sun, is about 27 degrees. As Saturn moves during its 29.5 year orbit around the Sun, this tilt means different parts of its rings and moons get sunlight at different angles, changing how they look. So, the rings are not really disappearing but rather playing a celestial game of hide and seek. At their reappearance, we can also enjoy an accentuated view of Saturn's moons.

The Register's Brandon Vigliarolo reports: Microsoft's "acquihire" of Inflection AI was today cleared by UK authorities on the grounds that the startup isn't big enough for its absorption by Microsoft to affect competition in the enterprise AI space. The Competition and Markets Authority (CMA) confirmed the conclusion of its investigation by publishing a summary of its decision. While the CMA found that Microsoft's recruitment of Inflection co-founders Mustafa Suleyman and Karen Simonyan, along with other Inflection employees, in March 2024 to lead Microsoft's new AI division did create a relevant merger situation, a bit of digging indicated everything was above board.

As we explained when the CMA kicked off its investigation in July, the agency's definition of relevant merger situations includes instances where two or more enterprises have ceased to be distinct, and when the deal either exceeds 70 million pounds or 25 percent of the national supply of a good or service. In both cases, the CMA determined [PDF], the Microsoft/Inflection deal met the criteria. As to whether the matter could lead to a substantial lessening of competition, that's where the CMA decided everything was OK.

"Prior to the transaction, Inflection had a very small share of UK domain visits for chatbots and conversational AI tools and ... had not been able to materially increase or sustain its chatbot user numbers," the CMA said. "Competitors did not regard Inflection's capabilities with regard to EQ [emotional intelligence, which was an Inflection selling point] or other product innovation as a material competitive constraint." In addition, the CMA said Inflection's foundational model offering wouldn't exert any "material competitive constraint" on Microsoft or other enterprise foundational model suppliers as none of the potential Inflection customers the CMA spoke with during its probe identified any features that made Inflection's software more attractive than other brands. Ouch.

An anonymous reader quotes a report from Wired: You might have a hard time stretching your memory to the Obama era, but back in 2013, Panasonic's plasma TVs were the critical darlings of the US market. They far outperformed their LED/LCD counterparts at a time when OLED was little more than a pipe dream for most. Then suddenly, under enormous pressure from ever-cheaper LED panels, Panasonic halted all plasma TV production. By 2016, the company had left the US TV space entirely. Now, over 10 years after its plasma models reigned supreme in the US, Panasonic TVs are back, baby.

Outside the US, Panasonic has remained a global leader in the OLED era. Rumors about a stateside return have been swirling for nearly as long as the brand has been away, but a global partnership with Amazon announced at CES 2024 kicked things into high gear. Today, Panasonic officially revealed the US launch of three premium TVs powered by Amazon's Fire TV smart interface: the flagship Z95A and "core" Z85A OLED TVs, and the W95A flagship mini LED TV. All three models are available now in limited sizes, as Panasonic begins its slow walk back to competing against LG, Samsung, and Sony. There are three models now available in the US: 55- and 65-inch OLED options and a Mini LED TV that measures up to 85 inches.

The Z95A is Panasonic's top OLED model featuring advanced gaming features, a 144-Hz refresh rate on select inputs, HDR10+, Dolby Vision support, and AI-powered picture modes. According to Wired, it boasts an impressive sound system developed with hi-fi audio brand Technics and employs Panasonic's proprietary microlens array technology for optimized brightness and heat management.

The Z85A is a step-down model offering similar gaming specs and smart home integration at a lower price, lacking the Z95A's specialized brightness and sound enhancements. It includes a game mode, HDR10+, Dolby Vision support, and a Mark II processor but only supports up to 120 Hz and doesn't have a built-in microphone for Alexa.

Last but not least is Panasonic's W95A flagship miniLED model, offering gaming-ready features like a 144-Hz refresh rate on two HDMI inputs and local dimming for deep contrast and high brightness. It includes the same smart-home integration as other models but features a more standard sound system, and Alexa control is available only through the remote.

An anonymous reader quotes a Bloomberg article, written by Jason Leopold: The aurora borealis, or northern lights, is a colorful display in the night sky that comes from geomagnetic storms in space. When charged particles from the sun smash into the Earth's upper atmosphere, they create bright, kaleidoscopic ribbons of light, typically in polar regions. Really big solar action can interfere with GPS systems and power grids. That's exactly what happened on May 10, when there were three "coronal mass ejections" (my future metal band name) that produced one of the most powerful solar storms in 500 years, hence the dazzling, polychromatic sky visible even from South America. Turns out, the extreme space weather also disrupted life on Earth.

Six days after the northern lights, I filed a Freedom of Information Act request with NOAA. I was curious how the agency reacted to the atmospheric event and whether the public deserved to be concerned. I asked NOAA's Space Weather Prediction Center and National Weather Service for a wide range of records, including emails, photographs, satellite images and threat assessments. A couple of weeks ago, NOAA turned over some interesting documents. The short version is, while we marveled at the light show, scientists were concerned. According to one internal memo, the geomagnetic storm was an "extreme," rare event and if NOAA scientists hadn't been on their game it could have been catastrophic.

A May 14, three-page after action memo disseminated by Clinton Wallace, the director of the Space Weather Prediction Center, described the storm's impact and explained the celestial phenomenon. He said "Solar Cycle 25," a phase of solar sunspot activity that began in December 2019 and continues through 2030, "has been more active than anticipated, with an intense surge in solar activity marking the beginning of May." "A large group of unstable sunspots on the Sun's surface unleashed several powerful solar flares, immediately affecting the Earth's outer atmosphere and causing disruptions in high-frequency (HF) radio communications," he wrote. "This had significant implications for trans-oceanic aviation, which relies heavily on HF radio for communication over long distances."

On May 9, a day before the northern lights extravaganza, staff at the Space Weather Prediction Center "activated" the North American Electric Reliability Corp. hotline to make sure the regulator was prepared. Wallace's memo said NERC gave about 3,000 electric utility companies a six-hour head start to get ready. The space weather officials also advised the Federal Emergency Management Agency and the Department of Homeland Security's Cybersecurity and Infrastructure Security Agency on preparedness. Wallace wrote in his memo that the storm caused "significant disruptions across multiple sectors, including navigation, power grids, aviation, and satellite operations." He also noted that the severity of the geomagnetic storm "underscored the interconnectedness and vulnerability of modern infrastructure to space weather." Although Wallace said the space weather scientists took steps to mitigate any potential disaster, their work "highlighted areas for improvement in preparedness and response." He didn't elaborate.