"The Big Bang may not have been the beginning of the universe," writes LiveScience, citing "a theory of cosmology that suggests the universe can 'bounce' between phases of contraction and expansion."

The recent study suggests that dark matter could be composed of black holes formed before the Big Bang, during a transition from the universe's last contraction to the current expansion phase... In the new study, researchers explored a scenario where dark matter consists of primordial black holes formed from density fluctuations that occurred during the universe's last contraction phase, not long before the period of expansion that we observe now. They published their findings in June in the Journal of Cosmology and Astroparticle Physics ... In this "bouncing" cosmology, the universe contracted to a size about 50 orders of magnitude smaller than it is today. After the rebound, photons and other particles were born, marking the Big Bang. Near the rebound, the matter density was so high that small black holes formed from quantum fluctuations in the matter's density, making them viable candidates for dark matter.

"Small primordial black holes can be produced during the very early stages of the universe, and if they are not too small, their decay due to Hawking radiation [a hypothetical phenomenon of black holes emitting particles due to quantum effects] will not be efficient enough to get rid of them, so they would still be around now," Patrick Peter, director of research at the French National Centre for Scientific Research (CNRS), who was not involved in the study, told Live Science in an email. "Weighing more or less the mass of an asteroid, they could contribute to dark matter, or even solve this issue altogether."

The scientists' calculations show that this universe mode's properties, such as the curvature of space and the microwave background, match current observations, supporting their hypothesis.
"If this hypothesis holds, the gravitational waves generated during the black hole formation process might be detectable by future gravitational wave observatories, providing a way to confirm this dark matter generation scenario..."

The Washington Post writes that Telegram's "anything-goes approach" to its 950 million users "has also made it one of the internet's largest havens for child predators, experts say...."

"Durov's critics say his public idealism masks an opportunistic business model that allows Telegram to profit from the worst the internet has to offer, including child sexual abuse material, or CSAM... " [Telegram is] an app of choice for political organizing, including by dissidents under repressive regimes. But it is equally appealing for terrorist groups, criminal organizations and sexual predators, who use it as a hub to share and consume nonconsensual pornography, AI "deepfake" nudes, and illegal sexual images and videos of exploited minors, said Alex Stamos, chief information security officer at the cybersecurity firm SentinelOne. "Due to their advertised policy of not cooperating with law enforcement, and the fact that they are known not to scan for CSAM, Telegram has attracted large groups of pedophiles trading and selling child abuse materials," Stamos said.

That reach comes even though many Telegram exchanges don't actually use the strong forms of encryption available on true private messaging apps, he added. Telegram is used for private messaging, public posts and group chats. Only one-to-one conversations can be encrypted in a way that even Telegram can't access them. And that occurs only if users choose the option, meaning the company could turn over everything else to governments if it wanted to... French prosecutors argue that Durov is in fact responsible for Telegram's emergence as a global haven for illegal content, including CSAM, because of his reluctance to moderate it and his refusal to help authorities police it, among other allegations...

David Kaye, a professor at University of California, Irvine School of Law and former U.N. special rapporteur on freedom of expression... said that while Telegram has at times banned groups and taken down [CSAM] content in response to law enforcement, its refusal to share data with investigators sets it apart from most other major tech companies. Unlike U.S.-based platforms, Telegram is not required by U.S. law to report instances of CSAM to the National Center for Missing and Exploited Children, or NCMEC. Many online platforms based overseas do so anyway — but not Telegram. "NCMEC has tried to get them to report, but they have no interest and are known for not wanting to work with [law enforcement agencies] or anyone in this space," a NCMEC spokesperson said.
The Post also writes that Telegram "has repeatedly been revealed to serve as a tool to store, distribute and share child sexual imagery." (They cite several examples, including two different men convicted to minimum sentences of at least 10 years for using the service to purchase CSAM and solicit explicit photos from minors.)

Scientists have finally detected and measured the ambipolar field, a weak electric field surrounding Earth that was first theorized over 60 years ago. "Any planet with an atmosphere should have an ambipolar field," says astronomer Glyn Collinson of NASA's Goddard Space Flight Center. "Now that we've finally measured it, we can begin learning how it's shaped our planet as well as others over time." ScienceAlert reports: Here's how the ambipolar field was expected to work. Starting at an altitude of around 250 kilometers (155 miles), in a layer of the atmosphere called the ionosphere, extreme ultraviolet and solar radiation ionizes atmospheric atoms, breaking off negatively charged electrons and turning the atom into a positively charged ion. The lighter electrons will try to fly off into space, while the heavier ions will try to sink towards the ground. But the plasma environment will try to maintain charge neutrality, which results in the emergence of an electric field between the electrons and the ions to tether them together. This is called the ambipolar field because it works in both directions, with the ions supplying a downward pull and the electrons an upward one. The result is that the atmosphere is puffed up; the increased altitude allows some ions to escape into space, which is what we see in the polar wind.

This ambipolar field would be incredibly weak, which is why Collinson and his team designed instrumentation to detect it. The Endurance mission, carrying this experiment, was launched in May 2022, reaching an altitude of 768.03 kilometers (477.23 miles) before falling back to Earth with its precious, hard-won data. And it succeeded. It measured a change in electric potential of just 0.55 volts -- but that was all that was needed. "A half a volt is almost nothing -- it's only about as strong as a watch battery," Collinson says. "But that's just the right amount to explain the polar wind." That amount of charge is enough to tug on hydrogen ions with 10.6 times the strength of gravity, launching them into space at the supersonic speeds measured over Earth's poles. Oxygen ions, which are heavier than hydrogen ions, are also lofted higher, increasing the density of the ionosphere at high altitudes by 271 percent, compared to what its density would be without the ambipolar field. The findings have been published in the journal Nature.

A longtime Slashdot reader writes: Regular Slashdot users will certainly be aware of the saga unfolding between the country of Brazil and X. Reuters has already reported that what I have to relay here will come as no surprise to Elon Musk, but reporting on CNN confirms that Brazilian Justice Alexandre de Moraes has ordered X to suspend operations in Brazil until X names a representative to appear on X's behalf in Brazilian Courts.

Is this the end of X or some brilliant Machiavellian ploy on the part of Elon Musk? Only time and the informed and spirited debate of the users here at /. can be sure. Here's a recap of the saga, as told by X's Grok-2 chatbot: The Beginning: Alexandre de Moraes, a Brazilian Supreme Court Justice with a reputation for tackling misinformation, especially around elections, found himself at odds with Elon Musk, the space-faring, electric-car magnate turned social media mogul. The conflict kicked off when Moraes ordered X to block certain accounts in Brazil, part of his broader crackdown on what he deemed as misinformation.

The Escalation: Musk, never one to shy away from a fight, especially when it involves what he perceives as free speech issues, declared on X that he would not comply with Moraes' orders. This defiance wasn't just a tweet; it was a digital declaration of war. Musk accused Moraes of overstepping his bounds, betraying the constitution, and even likened him to Darth Vader in a less than flattering comparison. Moraes, not amused, opened an investigation into Musk for obstruction of justice, accusing him of inciting disobedience and disrespecting Brazil's sovereignty. The stakes were raised with fines of around $20,000 per day for each reactivated account, and threats of arresting X employees in Brazil.

The Drama Unfolds: The internet, as it does, had a field day. Posts on X ranged from Musk supporters calling Moraes a dictator to others backing Moraes, arguing he was defending democracy against foreign billionaires. The conflict became a global spectacle, with Musk's posts drawing international attention, comparing the situation to a battle for free speech versus censorship. Musk, in true Musk fashion, didn't just stop at defiance. He shared all of Moraes' demands publicly, suggesting users use VPNs, and even hinted at closing X's operations in Brazil, which eventually happened, citing the need to protect staff safety.

The Latest Chapter: Recently, X announced the closure of its operations in Brazil, a move seen as the culmination of this legal and ideological battle. Musk framed it as a stand against what he saw as an assault on free speech, while critics viewed it as an overreaction or a strategic retreat.

U.S. Space Command chief Gen. Stephen Whiting called for greater transparency from China regarding space debris this week, citing concerns over the recent breakup of a Long March 6A rocket's upper stage. The incident, which occurred after an August 6 satellite launch, scattered over 300 pieces of debris in low-Earth orbit.

While acknowledging some improvement in U.S.-China military dialogue, Whiting stressed on the need for proactive communication about space junk, ArsTechnica reports. "I hope the next time there's a rocket like that, that leaves a lot of debris, that it's not our sensors that are the first to detect that, but we're getting communications to help us understand that," he said.

Astronomy researchers are urging the FCC to reconsider exempting large constellations of low Earth satellites from environmental reviews due to growing concerns over pollution, safety risks, and the impact on stargazing. They argue that the decades-old exemption is outdated, given the massive increase in satellite launches and potential long-term effects on the ozone, climate, and environment. The Register reports: Astronomers from Princeton University, University of California, Berkeley, and University of Arizona, among others, have added their names to a public letter that will be presented at some point to FCC space bureau chief Julie Kearney. The letter asks the FCC to follow prior recommendations from the Government Accountability Office (GAO), which in 2022 issued a report calling for the telecom regulator to revisit its decision to exempt large constellations of satellites from environmental review.

The exemption was created way back in 1986, when far fewer satellites were being launched. The GAO, however, urged the FCC to review the exemption, citing the recent proliferation of satellites and the questions that have been raised about the sustainability of the exemption. That recommendation was recently echoed by US PIRG, which earlier this month made a similar request to the FCC. US PIRG notes that the number of satellites in low Earth orbit has increased by a factor of 127 over the past five years, driven largely by the deployment of mega-constellations of communications satellites from SpaceX's Starlink subsidiary.

SpaceX's Falcon 9 rocket has been grounded by the FAA for the second time in less than two months following the failed landing of a first-stage booster, which was destroyed in a fireball after its 23rd flight. Spaceflight Now reports: The booster, serial number B1062 in the SpaceX fleet, suffered a hard landing, at the tail end of its record-setting 23rd flight. It was consumed in a fireball on the deck of the drone ship 'A Shortfall of Gravitas', which was stationed in the Atlantic Ocean about 250 miles east of Charleston, South Carolina. The mishap was the first booster landing failure since February 2021. In a statement on Wednesday, the Federal Aviation Administration said that while no public injuries or public property damage was reported, "The FAA is requiring an investigation."

The FAA made a similar declaration following a Falcon 9 upper-stage failure on July 12 during the Starlink 9-3 mission, which resulted in the loss of 20 satellites. Following that incident, SpaceX rockets did not return to flight until the Starlink 10-9 mission, on July 27. [...] The booster failure came the same week that SpaceX had to twice delay a launch attempt of the Polaris Dawn astronaut mission, first due to a helium leak and then for recovery weather at the end of the mission. The Polaris Dawn crew remain in quarantine for now, according to social media posts from Isaacman, but the timing of the next launch attempt is uncertain. In addition to landing weather concerns and resolving the FAA investigation, there is also the matter of launch pad availability.

An anonymous reader shares a report: While people in Asia are spending more time in the office, workers in the US and UK are not, according to a new report from XY Sense, a company that uses sensors to track office occupancy in more than 40,000 workspaces. While office space utilization -- the share of used spaces within an office out of all available space -- in the Asia-Pacific region grew 10 percentage points last quarter to 41%, that rate stayed at 28% in North America and declined in the UK. The so-called return to the office has been much slower in the US than abroad, partly because of factors like longer commute times, larger homes, and cultural individualism here.

Office utilization in North America is about half what it was pre-pandemic, according to XY Sense. When people do go into the office, meeting spaces are much more in demand. On average, time spent using collaborative spaces like conference rooms (4 hours a day) was 54% higher than individual desks (2.6 hours), and lack of communal space has become a big pain point for companies. Meanwhile XY Sense found that half of office desks were utilized for less than one hour per day, while 30% were never used at all.

This weekend NASA said they'd turn to SpaceX to return two astronauts from the International Space Station, notes the Associated Press, "rather than risk using the Boeing Starliner capsule that delivered them." (They add that Boeing's capsule "has been plagued by problems with its propulsion system.")

But Reuters reported that even before the setback, Boeing and Lockheed Martin were "in talks to sell their rocket-launching joint venture United Launch Alliance to Sierra Space, two people familiar with the discussions said." A deal to sell ULA, a major provider of launch services to the U.S. government and a top rival to Elon Musk's SpaceX, would mark a significant shift in the U.S. space launch industry as ULA separates from two of the largest defense contractors to a smaller, privately held firm.

The potential sale comes after years of speculation about ULA's future and failed attempts to divest the joint venture over the past decade. In 2019, Boeing and Lockheed Martin reportedly explored selling ULA but couldn't agree on terms with potential buyers... Jeff Bezos' Blue Origin and Cerberus Capital Management had placed bids in early 2023 for the company, according to people familiar with the negotiations. Rocket Lab had also expressed interest, two people said. None of those discussions led to a deal...

A potential deal could accelerate deployment of [Sierra Space's] crewed spaceflight business, analysts said. A ULA acquisition, they said, would give the company in-house access to launch vehicles that could send its spaceplane and space-station components into Earth's orbit, rather than spending hundreds of millions of dollars for those launches as a customer...

ULA has faced challenges in scaling Vulcan production and upping its launch rate to meet commercial demand and fulfill contract obligations with the Space Force, which in 2021 picked Vulcan for a sizable chunk of national security missions alongside SpaceX's Falcon fleet. A sale of ULA would unshackle the company from Boeing and Lockheed, whose boards have long resisted ideas from ULA to expand the business beyond rockets and into new competitive markets such as lunar habitats or maneuverable spacecraft, according to former executives.
While Reuters's sources say the negotiations could still end without a deal, they also said ULA could be valued between $2 billion and $3 billion, giving Boeing some cash while shifting its focus to its core businesses of aerospace and defense.

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

The nonprofit American Radio Relay League — founded in 1914 — has approximately 161,000 members, according to Wikipedia (with over 7,000 members outside the U.S.)

But sometime in early May its systems network was compromised, "by threat actors using information they had purchased on the dark web," the nonprofit announced this week. The attackers accessed the ARRL's on-site systems — as well as most of its cloud-based systems — using "a wide variety of payloads affecting everything from desktops and laptops to Windows-based and Linux-based servers." Despite the wide variety of target configurations, the threat actors seemed to have a payload that would host and execute encryption or deletion of network-based IT assets, as well as launch demands for a ransom payment, for every system... The FBI categorized the attack as "unique" as they had not seen this level of sophistication among the many other attacks, they have experience with.

Within 3 hours a crisis management team had been constructed of ARRL management, an outside vendor with extensive resources and experience in the ransomware recovery space, attorneys experienced with managing the legal aspects of the attack including interfacing with the authorities, and our insurance carrier. The authorities were contacted immediately as was the ARRL President... [R]ansom demands were dramatically weakened by the fact that they did not have access to any compromising data. It was also clear that they believed ARRL had extensive insurance coverage that would cover a multi-million-dollar ransom payment. After days of tense negotiation and brinkmanship, ARRL agreed to pay a $1 million ransom. That payment, along with the cost of restoration, has been largely covered by our insurance policy...

Today, most systems have been restored or are waiting for interfaces to come back online to interconnect them. While we have been in restoration mode, we have also been working to simplify the infrastructure to the extent possible. We anticipate that it may take another month or two to complete restoration under the new infrastructure guidelines and new standards.
ARRL's called the attack "extensive", "sophisticated", "highly coordinated" and "an act of organized crime". And tlhIngan (Slashdot reader #30335) shared this detail from BleepingComputer.

"While the organization has not yet linked the attack to a specific ransomware operation, sources told BleepingComputer that the Embargo ransomware gang was behind the breach."

Boeing "will return its Starliner capsule from the International Space Station without the NASA astronauts," reports CNBC. Though they've been on the space station since early June, the plan is to have them stay "for about six more months before flying home in February on SpaceX's Crew-9 vehicle.

"The test flight was originally intended to last about nine days." The decision to bring Starliner back from the ISS empty marks a dramatic about-face for NASA and Boeing, as the organizations were previously adamant that the capsule was the primary choice for returning the crew. But Starliner's crew flight test, which had been seen as the final major milestone in the spacecraft's development, faced problems — most notably with its propulsion system.

"Boeing has worked very hard with NASA to get the necessary data to make this decision," NASA Administrator Bill Nelson said during a press conference with top NASA officials at Johnson Space Center in Houston on Saturday. "We want to further understand the root causes and understand the design improvements so that the Boeing Starliner will serve as an important part of our assured crew access to the ISS."

He reiterated that test flights are "neither safe, nor routine," and that the decision was the "result of a commitment to safety." NASA will now conduct another phase of its Flight Readiness Review to determine when to bring the empty Starliner home. Boeing officials had been adamant in press briefings that Starliner was safe for the astronauts to fly home in the event of an emergency, despite delaying the return multiple times. NASA said there was a "technical disagreement" between the agency and the aerospace company, and said it evaluated risk differently than Boeing for returning its crew.

Nonetheless, NASA officials repeatedly expressed support for Boeing, and Nelson said he was "100% certain" that Starliner would be able to launch with a crew again someday.
NASA posted on X.com that they'd reached the decision "after extensive review by experts across the agency.

And CNBC adds that "Ken Bowersox, NASA associate administrator, said NASA officials were unanimous in their decision to choose SpaceX to bring the crew home."

NASA's 2022 DART mission "successfully demonstrated how a fast-moving spacecraft could change an asteroid's trajectory by crashing into it," remembers Gizmodo, "potentially providing a way to defend Earth — though the asteroid in this test was never a real threat."

But a followup study suggests debris from that 525-foot (160-meter) asteroid "could actually strike back," they add, "though we're not in any danger." The [DART] team posits that the collision produced a field of rocky ejecta that could reach Earth within 10 years... [Various aerospace scientists] studied data collected by the Light Italian CubeSat for Imaging of Asteroids, or LICIACube, which observed DART's impact of Dimorphos up close. Then, they fed LICIACube's data into supercomputers at NASA's Navigation and Ancillary Information Facility to simulate how the debris from the asteroid — basically dust and rock — may have disseminated into space. The simulations tracked about 3 million particles kicked up by the impact, some of which are large enough to produce meteors that could be spotted on Earth. Particles from the impact could get to Mars in seven to 13 years, and the fastest particles could make it to our own world in just seven years.

"This detailed data will aid in the identification of DART-created meteors, enabling researchers to accurately analyze and interpret impact-related phenomena," the team wrote in the paper.
"However, these faster particles are expected to be too small to produce visible meteors, based on early observations," said Dr. Eloy Peña-Asensio, who lead the research team, in an interview with Universe Today. (He's a Research Fellow with the Deep-space Astrodynamics Research and Technology group at Milan's Polytechnic Institute.) The team's simulations indicated it could take up to 30 years before any of the ejecta is observed on Earth, in a new (and human-created) meteor shower called the Dimorphids.

So while they won't pose any risk, "If these ejected Dimorphos fragments reach Earth... their small size and high speed will cause them to disintegrate in the atmosphere, creating a beautiful luminous streak in the sky."

Monday brought spectacular footage of an explosion at a UK rocket test site after an engine test went awry. The plan had been to test-fire all of a rocket stage's nine engines at the same time — they've successfully ignited them more than a hundred times — but this time one of the first eight had an "unusual" anomaly — "most likely a fire in the oxygen pump," according to a video posted by space company RFA on X.com.

The trouble "spread onto neighboring engines," eventually leading to a billowing jet of fire from the side of the vehicle. ("The engine-propellant manifold system was damaged to such a great extent that kerosene kept fueling the fire.")

Slashdot reader AleRunner writes: A rocket company has vowed to return to regular operations "as soon as possible" after an explosion during a test at the UK's new spaceport in Shetland. The explosion happened after "an "anomaly" had led to "the loss of the stage" — but there were no injuries according to a Guardian report. The test was carried out by German company Rocket Factory Augsburg which hopes to make the first UK vertical rocket launch into orbit... "We develop iteratively with an emphasis on real testing.
"This is part of our philosophy and we were aware of the higher risks attached to this approach. Our goal is to return to regular operations as soon as possible."
"In true RFA fashion, we're being as transparent as possible," the company posted Friday on X.com, "and sharing our own raw footage of the incident." The day of the explosion they'd posted that "The launch pad has been saved and is secured," and Friday posted that six-minute video explaining what happened. (It emphasizes there's an improved version of this stage that's already been built.)

The Guardian added that the explosion comes three months after RFA's successful 8-second test firing of its rocket engines — the spaceport's first rocket test.

Chinese scientists have developed a new method to produce significant quantities of water from lunar soil brought back by the Chang'e-5 mission in 2020, state broadcaster CCTV reported. The "brand-new method" involves heating moon minerals containing hydrogen to generate water vapor, which could be crucial for future lunar research stations and space exploration. Reuters reports: "After three years of in-depth research and repeated verification, a brand-new method of using lunar soil to produce large amounts of water was discovered, which is expected to provide important design basis for the construction of future lunar scientific research stations and space stations," said CCTV. The discovery could have important implications for China's decades-long project of building a permanent lunar outpost amid a U.S.-China race to find and mine the moon's resources.

Using the new method, one tonne of lunar soil will be able to produce about 51-76 kg of water, equivalent to more than a hundred 500ml bottles of water, or the daily drinking water consumption of 50 people, the state broadcaster said. China hopes that recent and future lunar expeditions will set the foundations to build the International Lunar Research Station (ILRS), an initiative it is co-leading with Russia.

After a couple of years of regular use, Samsung's $400 Galaxy Ring will end up contributing to the growing e-waste problem. "The Galaxy Ring -- and all smart rings like it -- comes with a huge string attached," writes iFixit in a blog post. "It's 100% disposable, just like the AirPod-style Buds3 that Samsung just released. The culprit? The lithium ion batteries." ZDNet reports: The problem is the battery, and how they have a finite lifespan. Usually that's about 400 recharge cycles, and after that the batteries are finished. And if you can't replace it, then it's the end of the line for the gadget, and it's tossed onto the e-waste pile. [...]

iFixit is damning about this sort of tech. "There's nothing wrong with simple but there is something wrong with unrepairable. Just like the Galaxy Buds3, the Galaxy Ring is a disposable tech accessory that isn't designed to last more than two years." And the bottom line is simple: "We can't recommend buying disposable tech like this." Here's what iFixit's Shahram Mokhtari had to say about the Galaxy Ring's battery, after putting it through a CT scanner: On the right hand side of the ring is the faint outline of a lithium polymer battery pouch. There's an inductive coil sitting right on top of the battery (the lines that look like a rectangular track) and another very similar inductive coil that's parallel and slightly separated from the first. That second inductive coil is inside the charging case and works together with the inductive coil in the ring to recharge the battery inside the Galaxy Ring. Inductive charging is the only practical way to deliver power to a device that doesn't have any ports. But there's something else here that sticks out like a sore thumb ... that is a press connector joining the battery to the rest of the board! This is a surprising use of space, why isn't this directly soldered? Nobody is getting back in there to disconnect this thing!

We love press connectors, they're easy to work with and make replacing batteries a sight easier than desoldering a half dozen wires. But this one is sealed into the device and serves no purpose in replacement or repair. Our best guess as to why it's in the Galaxy Ring: The battery and wireless charging coil were made in one place, the circuit board somewhere else, and it all comes to a production line somewhere where the two need to be connected together quickly and cheaply. Hence the press connector. It's not for your benefit, it's for the manufacturers.

The Wow! signal, detected on August 15, 1977, was an intense radio transmission that appeared artificial and raised the possibility of extraterrestrial contact. However, recent research suggests it may have been caused by a natural astrophysical event involving a magnetar flare striking a hydrogen cloud. Universe Today reports: New research shows that the Wow! Signal has an entirely natural explanation. The research is "Arecibo Wow! I: An Astrophysical Explanation for the Wow! Signal." The lead author is Abel Mendez from the Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo. It's available at the pre-print server arxiv.org. Arecibo Wow! is a new effort based on an archival study of data from the now-defunct Arecibo Radio Telescope from 2017 to 2020. The observations from Arecibo are similar to those from Big Ear but "are more sensitive, have better temporal resolution, and include polarization measurements," according to the authors. "Our latest observations, made between February and May 2020, have revealed similar narrowband signals near the hydrogen line, though less intense than the original Wow! Signal," said Mendez.

Arecibo detected signals similar to the Wow! signal but with some differences. They're far less intense and come from multiple locations. The authors say these signals are easily explained by an astrophysical phenomenon and that the original Wow! signal is, too. "We hypothesize that the Wow! Signal was caused by sudden brightening from stimulated emission of the hydrogen line due to a strong transient radiation source, such as a magnetar flare or a soft gamma repeater (SGR)," the researchers write. Those events are rare and rely on precise conditions and alignments. They can cause clouds of hydrogen to brighten considerably for seconds or even minutes.

The researchers say that what Big Ear saw in 1977 was the transient brightening of one of several H1 (neutral hydrogen) clouds in the telescope's line of sight. The 1977 signal was similar to what Arecibo saw in many respects. "The only difference between the signals observed in Arecibo and the Wow! Signal is their brightness. It is precisely the similarity between these spectra that suggests a mechanism for the origin of the mysterious signal," the authors write. These signals are rare because the spatial alignment between source, cloud, and observer is rare. The rarity of alignment explains why detections are so rare. The researchers were able to identify the clouds responsible for the signal but not the source. Their results suggest that the source is much more distant than the clouds that produce the hydrogen signal. "Given the detectability of the clouds as demonstrated in our data, this insight could enable precise location of the signal's origin and permit continuous monitoring for subsequent events," the researchers explain.

An anonymous reader quotes a report from The Guardian, written by Julian Benson: It's been eight years since Civilization 6 -- the most recent in a very long-running strategy game series that sees you take a nation from the prehistoric settlement of their first town through centuries of development until they reach the space age. Since 2016 it has amassed an abundance of expansions, scenario packs, new nations, modes and systems for players to master -- but series producer Dennis Shirk at Firaxis Games feels that enough it enough. "It was getting too big for its britches," he says. "It was time to make something new."

"It's tough to even get through the whole game," designer Ed Beach says, singling out the key problem that Firaxis aims to solve with the forthcoming Civilization 7. While the early turns of a campaign in Civilization 6 can be swift, when you're only deciding the actions for the population of a single town, "the number of systems, units, and entities you must manage explodes after a while," Beach says. From turn one to victory, a single campaign can take more than 20 hours, and if you start falling behind other nations, it can be tempting to restart long before you see the endgame. That's why Civilization 7's campaign has been split into three ages -- Antiquity, Exploration and Modern -- with each ending in a dramatic explosion of global crises. "Breaking the game into chapters lets people get through history in a more digestible fashion," Beach says.

When you start a new campaign, you pick a leader and civilization to govern, and direct your people in establishing their first settlements and encounters with the other peoples populating a largely undeveloped land. You'll choose the technologies they research, the expansions they make to their cities, and whom they try to befriend or conquer. Every turn you complete or scientific, economic, cultural and military milestone you pass adds points to a meter running in the background. Once that meter hits 200, you and all the other surviving civilizations on the map will transition into the next age. When moving from Antiquity to Exploration and later Exploration to Modern, you select a new civilization to lead. You'll retain all the cities you controlled before but have access to different technologies and attributes. This may seem strange, but it's built to reflect history: think of London, which was once run by the Romans before being supplanted by the Anglo-Saxons. No empire lasts for ever, but they don't all collapse, either.

Breaking Civilization 7 into chapters also gives campaigns a new rhythm. As you approach the end of an age, you'll begin to face global crises. In Antiquity, for instance, you can see a proliferation of independent powers similar to the tribes that tore down Rome. "We're not calling them barbarians any more," Beach says. "It's a more nuanced way to present them." These crises multiply and strengthen until you reach the next age. "It's like a sci-fi or fantasy series with a huge, crazy conclusion, and then the next book starts nice and calm," Beach says. "There's a point where getting to the next age is a relief." Here's a round-up of thoughts on Civilization 7 from some of the most respected gaming outlets and reviewers:

Civilization VII hands-on: This strategy sequel rethinks the long game -- Ars Technica's Samuel Axon
Civilization 7 pairs seismic changes with a lovably familiar formula -- Eurogamer's Chris Tapsell
Civilization 7 hands-on: Huge changes are coming to the classic strategy series - PC Gamer's Tyler Wilde
Civilization 7 lets you mix and match history -- and it's a blast - The Verge's Ash Parrish
Civilization 7 Hands-On Preview: Creating Your Legacy - Game Rant's Joshua Duckworth
Sid Meier's Civilization VII preview -- possibly the freshest sequel yet - GamesHub's Jam Walker
How Civilization 7 Rethinks The Series' Structure - GameSpot's Steve Watts

North America's eight primary data center markets added 515 megawatts (MW) of new supply in the first half of 2024 -- the equivalent of Silicon Valley's entire existing inventory -- according to a new report real-estate services firm CBRE. From a report: All of Silicon Valley has 459 MW of data center supply, while those main markets have a total of 5,689 MW. That's up 10% from a year ago and about double what it was five years ago. Data center space under construction is up nearly 70% from a year ago and is currently at a record high. But the vast majority of that is already leased, and vacancy rates have shrunk to a record low of 2.8%. In other words, developers are building an insane amount of data center capacity, but it's still not enough to meet the growing demands of cloud computing and artificial intelligence providers.

NASA astronauts Butch Wilmore and Suni Williams are facing challenges returning to Earth due to compatibility issues between their Boeing-designed spacesuits and SpaceX's Dragon spacecraft. Inc. Magazine reports: The space suits in question are the "intra-vehicular activity" outfits now worn by astronauts. They're simpler than the bulky extra-vehicular space suits used on space walks, and are designed to keep astronauts safe in the capsule in the very unlikely case there's a problem that causes the capsule's atmosphere to be lost. The problem is simple: Should Butch and Suni need to fly back aboard SpaceX's vehicle, their suits won't fit in Dragon's seats. [...]

Boeing and SpaceX suits evolved under totally different design sensibilities. If Boeing and NASA deem Starliner unsafe for humans to fly home in, Butch and Suni must head earthward aboard a SpaceX Dragon, but their suits won't be able to plug into Dragon's systems. Like trying to plug an essentially outdated USB A socket into an iPhone's charge port, the suit connectors have different shapes, styles, and functions. The suits themselves have different systems that integrate with their own capsules for purposes like air leak checks during pre-flight testing.

So if an emergency situation presents itself and astronauts have to come back to Earth before proper plans are finalized, Butch and Suni will have to return inside the cargo section of a Dragon space capsule "unsuited," according to NASA leadership who spoke on the matter in a press conference last week. Other plans include flying up suitable Dragon-connecting space suits for the two astronauts on a later mission, should Starliner be deemed incapable of bringing them back.

Bloomberg's Mark Gruman remembers how Apple's hardware group "allowed Apple to dump Intel chips from its entire Mac lineup."

And they're now building an in-house cellular modem: For more than a decade, Apple has used modem chips designed by Qualcomm... But in 2018 — while facing a legal battle over royalties and patents — Apple started work on its own modem design.... It's devoting billions of dollars, thousands of engineers and millions of working hours to a project that won't really improve its devices — at least at the outset...

Over the past few years, Apple's modem project has suffered numerous setbacks. There have been problems with performance and overheating, and Apple has been forced to push back the modem's debut until next year at the earliest. The rollout will take place on a gradual basis — starting with niche models — and take a few years to complete. In a sign of this slow transition, Apple extended its supplier agreement with Qualcomm through March 2027... But Qualcomm has said that Apple will still have to pay it some royalties regardless (the chipmaker believes that Apple won't be able to avoid infringing its patents).

So it's hard to tell how big the benefits will be in the near term. Down the road, there are plans for Apple to fold its modem design into a new wireless chip that handles Wi-Fi and Bluetooth access. That would create a single connectivity component, potentially improving reliability and battery life. There's also the possibility that Apple could one day combine all of this into the device's main system on a chip, or SoC. That could further cut costs and save space inside the iPhone, allowing for more design choices. Furthermore, if Apple does ultimately save money by switching away from Qualcomm, it could redirect that spending toward new features and components.