New navigation satellites in low-Earth orbit could provide 100 times stronger signal strength compared to GPS and other global navigation satellite systems operating from higher orbital altitudes—enabling greater location accuracy within dense cities, under thick foliage, and even inside buildings. Such signals would also likely prove more resilient to interference at a time when commercial flights, maritime shipping, and even various smartphone apps face increasingly widespread disruption from GPS jamming.

That vision may start to take shape when the first six production satellites of California-based Xona Space Systems are scheduled to launch in October 2026, with early service starting in 2027. Once the full constellation of 258 Pulsar satellites has been launched in the following years, Xona claims that customers will be able to accurately pinpoint their locations anywhere on Earth to within several centimeters.

“That added power means that we can get into that indoor environment that GPS can't get to today,” Adrien Perkins, co-founder and VP of engineering at Xona Space Systems, told Ars. “Our higher power allows you to get into those jamming environments a lot further than you would with GPS by itself.”

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ROCKVILLE, Maryland—Hundreds of Bethesda Game Studios and Zenimax Online Studios employees and their supporters braved nearly 100°F temperatures to protest sweeping layoffs across Xbox during a lunchtime rally in front of parent company Zenimax's headquarters today. The rally was one of five organized today by Zenimax Workers United and its parent union, the Communication Workers of America, at offices across Texas, California, and Montreal.

Attendees held up signs with messages like "Layoffs... layoffs never change" and "Our players deserve better" as union organizers and employees rallied the crowd with speeches and songs. The overwhelming message was one of solidarity and a willingness to push back against job cuts they say have decimated their development and quality assurance teams.

"It's about us building our movement and making sure that we get seen and we're visible," Bethesda technical producer and union volunteer organizer Nathan Hahn told Ars. "Because we want to make sure that we're not okay with these layoffs and that Xbox knows."

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A dried-out felt-tip marker and a snapped-off piece of molded black plastic sold for $857,600 at a Sotheby's auction on Wednesday.

What otherwise might have been worthless bits of trash commanded the highest bids due to where the two items were 57 years ago—lifting off aboard NASA's Apollo 11 spacecraft on humanity's first mission to land astronauts on the Moon. More than flown odds and ends, one was the problem that almost stranded Neil Armstrong and Buzz Aldrin on the lunar surface, and the other was the simple solution to saving the mission.

"Houston, Tranquility. Do you have a way of showing the configuration of the engine arm circuit breaker?" radioed Aldrin to Mission Control after realizing he or Armstrong had inadvertently broken off the top of the circuit breaker switch that would enable their ascent engine to ignite, beginning their trip back to Earth. "The reason I'm asking is because the end of it appears to be broken off. I think we can push it back in again. I'm not sure we could pull it out if we pushed it in, though."

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Sheetz, a US convenience store chain, is moving its 838 locations off VMware.

Sheetz has used VMware virtualization across two Dell R440/R450-series servers at each of its locations since 2019. Now it’s migrating 12 to 14 virtual machines (VMs) in each of its stores from VMware vSphere to StorMagic’s SvHCI, “with an additional two VMs to be replaced over the coming months to transition from Windows 10 to Windows 11,” Scott Robertson, infrastructure team manager at Sheetz, told Ars Technica via email. Ultimately, Sheetz will move about 11,000 VMs from Broadcom's virtualization platform. Sheetz is still running the original Dell server hardware.

So far, Sheetz has finished migrating more than 600 stores, averaging 200 per month, according to a company announcement today. Sheetz should be finished with the migration in four months, the announcement said.

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This week, the Coalition for Independent Technology Research (CITR) won a key battle in its fight to reverse a visa-restriction policy that the Trump administration had used to attempt to revoke green cards and deport non-US citizens who work on misinformation, disinformation, fact-checking, content moderation, compliance, and trust and safety.

In an opinion published Tuesday, US District Judge James Boasberg granted a preliminary injunction blocking the State Department from enforcing the policy until the CITR’s lawsuit is resolved.

On its face, the policy does not require visa denials or deportations. Instead, it authorizes immigration investigations into individuals suspected of helping foreign adversaries attempt to manipulate public opinion by suppressing US speech.

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© UCG / Contributor | Universal Images Group

Jurassic Park, while beloved as a film, has been the subject of snarky memes for the infamous line in which one of the characters declares, "This is a Unix system, I know this!" while using a computer with an unusual 3D file manager interface.

Despite the memes, the film's production team was meticulous in accurately sourcing the right PCs (and adjacent details) for the sets—not too much of a surprise, given writer Michael Crichton's background with computing and his obsessive attention to detail in the book the film is based on.

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Right on the heels of Microsoft releasing a record number of security patches, a researcher has published exploit code that can enable low-privilege Windows accounts to make sensitive changes to administrator accounts.

The exploit, which multiple researchers say works, is sending Microsoft scrambling, yet again, to patch a zero-day released by an anonymous researcher who has complained about the software maker’s handling of their bug reports. To date, the pseudonymous NightmareEclypse has published nine such exploits, including Tuesday’s HiveLegacy. The researcher said the proof-of-concept code included in the report was stripped down to prevent attackers from using it maliciously.

A “pretty powerful primitive”

HiveLegacy is an elevation-of-privilege exploit that targets a vulnerability residing in the Windows User Profile Service. It allows users (and with more work likely processes) with limited system rights to compromise an admin user's account by modifying its classes registry hive, a resource that ensures the correct application opens when certain types of files are clicked on in Windows Explorer.

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The Federal Communications Commission will vote to repeal the National Television Ownership Rule that is supposed to prevent a single broadcast station owner from reaching more than 39 percent of all TV households in the US. The proposed change sets up a likely court battle over the FCC claim that it has authority to repeal a limit set by Congress.

FCC Chairman Brendan Carr has already treated the rule as more of a suggestion. In March, the Carr FCC granted a waiver allowing Nexstar Media Group to buy Tegna in a deal that let it reach over half of TV households. The Carr FCC argued that Congress gave it authority to modify or waive the rule.

Carr now plans to repeal the 39 percent limit and replace it with a "case-by-case review" of each proposed merger, the chairman announced today in an op-ed published on Breitbart. The change would make it easier for the FCC to pick and choose which station groups get to surpass the limit. Under Carr, this would likely benefit news companies that provide favorable coverage for President Trump.

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New Zealand actor Sam Neill, who starred as Dr. Alan Grant in the 1993 blockbuster Jurassic Park and its 2022 sequel, Jurassic World Dominion, died on Monday in Sydney, Australia. He was 78.

While American audiences likely know Neill best for Jurassic Park, he had a long and varied career in film and television. His sheer versatility won him fans around the world. He played the grown Damien in Omen III: The Final Conflict; a Russian officer in The Hunt for Red October; and even made brief cameos (as an actor playing Odin in a theatrical troupe) in Thor: Ragnarok and Thor: Love and Thunder. (The less said about 1997's space horror travesty, Event Horizon, the better, although it has its fans, and Neill made the most of his role.) Yet some of his best performances were in smaller, critically acclaimed independent films such as 1993's Oscar-winning The Piano.

On television, Neill earned his first Golden Globe nomination for the lead role in Reilly, Ace of Spies in the 1980s. He was nominated for both an Emmy and a second Golden Globe for playing the titular Arthurian wizard in the 1998 miniseries Merlin. He played Cardinal Wolsley in The Tudors, and was part of the ensemble cast in the (excellent) 2015 adaptation of Agatha Christie's And Then There Were None. Neill was magnetic as the ruthless CI Major Chester Campbell in Peaky Blinders—an antagonist and romantic rival of Cillian Murphy's Tommy Shelby.

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Big changes are coming to Android apps, but they're not the changes Google wanted. The settlement between Google and Epic that aimed to put to rest the companies' long-running antitrust battle is being withdrawn, and that means third-party app stores are coming to the Play Store. Google has confirmed that it will begin distributing rival app stores next week, setting the stage for competing platforms to take a bite out of Google's Android revenue stream.

This case has the potential to upend software distribution on Android, and it's all because of V-Bucks. In 2020, Epic Games was frustrated that it had to pay a 30 percent cut to Apple and Google every time someone bought a bundle of V-Bucks in a mobile version of Fortnite. The publisher added a direct purchase option to the game in violation of both Apple's and Google's rules. Naturally, Fortnite was pulled from the App Store and Google Play, kicking off the antitrust lawsuit that is only now reaching its conclusion.

While Apple suffered little penalty in its Epic case, Google was tripped up by its anti-competitive management of the supposedly open Android ecosystem. Google used its market position to discourage device makers from promoting or pre-loading non-Google app stores and attempted to hide that conduct. The remedies set by Judge James Donato included lower fees, mirroring Google Play apps in other stores, and most vitally, placement of alternative app stores in Google Play.

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As rumors continue to swirl about OpenAI's work on a personalized smart speaker and other hardware, the company is today rolling out its first branded device. The $230 Codex Micro is a specialized, RGB-lit mini-keyboard designed to let users monitor and quickly interact with multiple Codex agents with a glance and a few clicks.

The device is described as a "limited-run collaboration" with Work Louder, which already sells a very similar-looking Creator Micro line of customizable square keyboards targeted at creative professionals. The Codex Micro differentiates itself from those mainly through six frosted keys in the top two rows, which offer color-coded live feedback on up to six Codex threads, even when they are not in focus on-screen.

Open the OpenAI box for AI assistance. Credit: OpenAI / Work Louder

Ideally, those colored keys will cycle from white when a thread is idle to blue when Codex is thinking to green when a task is complete. But the keys can also flash amber when Codex requires feedback or a decision from a human operator and red when a thread encounters an error, letting users know at a glance which of their Codex tasks needs immediate attention. A quick tap on the lit-up button brings up the applicable Codex window on-screen.

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Anil Menon, a NASA flight surgeon, felt crushed nine years ago as his hopes and aspirations collapsed around him.

For the fourth time, he had diligently applied to become an astronaut at the US space agency, seeking to fulfill a lifelong dream. Although he made it to the final round, NASA had once again rejected his application at the end of the grueling process.

"I was so sad, and I admitted defeat," Menon said. "I just did not see a pathway forward. So I pretty much, at that point in time, gave up on being an astronaut. I thought there was a zero percent chance."

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SpaceX has pinned the bulk of its future value on orbital data centers. Not rockets. Not spacecraft.

Instead, it envisions launching and maintaining a constellation of 1 million satellites capable of generating 120 GW to power tens of millions—and potentially up to 100 million—frontier-class GPUs for data center services.

The company's founder, Elon Musk, revealed plans for this massive constellation months ago, but until recently, the scope of the individual satellites was largely unknown. That changed in June, when Musk and Ian Dahl, director of satellite engineering for SpaceX, spoke in a promotional video about the company's plans to develop the first iteration of an orbital data center, called an AI1 satellite. The video finally provided the company's numbers about the satellite's size and power capabilities.

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Forget the sale of the century. The auction house Sotheby’s has geared up for the sale of the epoch. On July 14 it opened live bidding on assorted fossils, but the pièce de résistance is lot 20, a rare 67-million-year-old Tyrannosaurus rex skeleton.

The specimen—dubbed Gus—is billed as one of the largest, most complete T. rexes ever found. Gus is expected to fetch up to $30 million and will go to the highest bidder, whether public museum or private collector. The latter have played an increasingly prominent role in buying fossils, with auction houses, according to paleontologists, contributing to the trend by building hype. But when private collectors swoop in and buy fossils at auction as luxury assets, those pieces of history are effectively lost to science.

By nearly all accounts, Gus is a big deal. In its description, Sotheby’s boasts that the specimen, which was discovered on a ranch in South Dakota, comprises “an incredible 183 fossil bone elements” making it “approximately 61% complete by bone count.” The fossil remains have been mounted in a custom steel armature along with replicas of the missing bones. The result is a reconstructed skeleton posed as if in hot pursuit, its mouth full of dagger teeth ready to tear into prey.

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© Courtesy of Matthew Sherman/Sotheby's

An industry-wide standard Microsoft invented to protect Windows, and later Linux, devices from firmware infections has been trivial to bypass for 13 of its 14 years of existence. The discovery was made by researchers at security firm ESET after identifying 11 firmware images, at least one from 2013, that were known to be defective but remained signed by the software company anyway.

The images are known as shims, which were invented to extend Secure Boot to Linux devices and utility software. Using a technique simple enough to be performed by novice hackers, these old, forgotten shims can be used to completely circumvent the protection, which is embedded into the UEFI (Unified Extensible Firmware Interface) of the device's motherboard. The gaffe is the result of the failure by Microsoft, which oversees the signing of shims, to revoke the publicly available images once vulnerabilities were found in them.

Threat extends to Windows and Linux users

The threat extends to Windows and Linux users alike, since the shim can be installed on devices running both operating systems. From there, an attacker can subvert the mandated chain of digitally signed firmware to install malicious firmware that loads early in the boot process and persists after either the OS is reinstalled or a hard drive is replaced.

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The Trump administration on Monday barred US citizens in the Democratic Republic of the Congo from returning home amid an Ebola outbreak that continues to outpace response efforts.

Reuters first reported late Monday that Americans currently in the DRC or those who have recently traveled to the Ebola-stricken country have been put on a "do-not-board" list. They cannot travel back to the US until they have spent 21 days in a third country. The order, taken under a transportation authority known as Title 49, was independently confirmed by Politico on Tuesday.

Both outlets noted that roughly two dozen Americans who had been set to board flights home on Tuesday have already been blocked by the new rule. It remains unclear if the bar also applies to government workers. The Centers for Disease Control and Prevention has at least two dozen employees working in the DRC.

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Meta's AI-fueled layoffs of 8,000 employees targeted workers with disabilities and those who took protected medical or family leaves, alleged a lawsuit filed by 26 employees who were selected for termination. Meta used internal AI tools to select employees for layoffs, according to the complaint filed yesterday by 26 "Doe" plaintiffs in US District Court for the Northern District of California.

"Meta did not assemble the termination list through the considered judgment of managers who knew the work. Instead, Meta used a constellation of internal artificial-intelligence systems—including a system referred to internally as 'Metamate,' employee-trained 'second-brain' agents, keystroke- and activity-monitoring data, AI-token-usage dashboards, and algorithmically assisted performance ranking and calibration—to score, rank, and select employees for inclusion on the list," the lawsuit said.

Employees were allegedly graded, among other things, on how much they used Meta's AI tools. "Meta’s internal dashboards classified employees by their stage of adoption of its artificial-intelligence tools, using categories such as 'AI Native,' 'AI First,' and 'AI Enabled,'" the lawsuit said.

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Lettuce and salad greens have become the prime suspects in an explosive outbreak of the diarrheal parasite Cyclospora, which is surging nationwide but erupting to extraordinary heights in Michigan.

In recent years, Michigan has typically reported around 50 cases of cyclosporiasis, which causes urgent bouts of watery diarrhea, abdominal cramps, and nausea. But, this year, as of July 14, the state has reported 3,309 cases of the food-borne pathogen. Of those 44 have been hospitalized.

Based on interviews with more than 1,000 people sickened in Michigan, the latest data is pointing to leafy greens as the source, according to the Michigan Department of Health and Human Services (MDHHS).

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© Getty | Al Drago

For the first time in its history, the US military sent explosive-laden drone boats into combat by attacking an Iranian midget submarine and naval port. The unprecedented use of such kamikaze sea drones by the United States comes nearly a decade after Iranian and Houthi forces first demonstrated such weapons.

The US military shared a video showing three “one-way attack surface drones” exploding after approaching an Iranian midget submarine and ship maintenance facility at Iran’s Bandar Abbas Naval Base on the night of July 12. US Central Command, the US military combat command responsible for Middle East operations, described the strikes in a social media post as the “first time American forces have employed sea drones in combat operations.”

The US drone boats were able to “make a low-speed, uncontested approach” to their targets before exploding, according to USNI News, a news service from the nonprofit US Naval Institute. USNI News also identified one of the targets as an Iranian Ghadir-class midget submarine that was out of the water while being suspended from a gantry.

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Scientists at Pennsylvania State University have developed a novel conductive ink that can be painted directly onto the skin in colorful custom designs, turning into a functional electrode for biomonitoring after drying. They described their work in a new paper published in the Proceedings of the National Academy of Sciences (PNAS).

As previously reported, epidermal electronics attached to the skin via temporary tattoos (e-tattoos) have been around for more than a decade. So-called e-tattoos connect to skin without adhesives, are practically unnoticeable, and are typically attached via temporary tattoo, allowing electrical measurements (and other measurements, such as temperature and strain) using ultra-thin polymers with embedded circuit elements.

However, these e-tattoos have their limitations, most notably that they don’t function well on curved and/or hairy surfaces, as well as requiring personalized electrode placement design to cover larger areas, since biosignals are spatially distributed. So scientists have been getting creative. For instance, in 2024, researchers developed special polymer-based conductive inks that can be printed onto a person’s scalp to measure brain waves, even if they have hair. This could one day enable mobile EEG monitoring outside a clinical setting, among other potential applications.

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© Wanqing Zhang