On Monday, US District Court Judge Patti Saris vacated a Trump executive order that brought a halt to all offshore wind power development, as well as some projects on land. That order had called for the suspension of all permitting for wind power on federal land and waters pending a review of current practices. This led states and an organization representing wind power companies to sue, claiming among other things that the suspension was arbitrary and capricious.

Over 10 months since the relevant government agencies were ordered to start a re-evaluation of the permitting process, testimony revealed that they had barely begun to develop the concept of a review. As such, the only reason they could offer in defense of the suspension consisted of Trump’s executive order and a Department of the Interior memo implementing it. “Whatever level of explanation is required when deviating from longstanding agency practice,” Judge Saris wrote, “this is not it.”

Lifting Trump’s suspension does not require the immediate approval of any wind projects. Instead, the relevant agencies are likely to continue following Trump’s wishes and slow-walking any leasing and licensing processes, which may force states and project owners to sue individually. But it does provide a legal backdrop for any suits that ultimately occur, one in which the government’s actions have little justification beyond Trump’s personal animosity toward wind power.

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Long ago, Google’s Android-powered wearables had hands-free navigation gestures. Those fell by the wayside as Google shredded its wearable strategy over and over, but gestures are back, baby. The Pixel Watch 4 is getting an update that adds several gestures, one of which is straight out of the Apple playbook.

When the update hits devices, the Pixel Watch 4 will gain a double pinch gesture like the Apple Watch has. By tapping your thumb and forefinger together, you can answer or end calls, pause timers, and more. The watch will also prompt you at times when you can use the tap gesture to control things.

In previous incarnations of Google-powered watches, a quick wrist turn gesture would scroll through lists. In the new gesture system, that motion dismisses what’s on the screen. For example, you can clear a notification from the screen or dismiss an incoming call. Pixel Watch 4 owners will also enjoy this one when the update arrives.

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© Ryan Whitwam

Despite claims of environmental leadership and promises to preserve the Amazon rainforest ahead of COP30, Brazil is stripping away protections for the region’s vital ecosystems faster than workers dismantled the tents that housed the recent global climate summit in Belém.

On Nov. 27, less than a week after COP30 ended, a powerful political bloc in Brazil’s National Congress, representing agribusiness, and development interests, weakened safeguards for the Amazon’s rivers, forests, and Indigenous communities.

The rollback centered on provisions in an environmental licensing bill passed by the government a few months before COP30. The law began to take shape well before, during the Jair Bolsonaro presidency from 2019 to 2023. It reflected the deregulatory agenda of the rural caucus, the Frente Parlamentar da Agropecuária, which wielded significant power during his term and remains influential today.

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Back in 2023, we reported on MIT scientists’ conclusion that the ancient Romans employed “hot mixing” with quicklime, among other strategies, to make their famous concrete, giving the material self-healing functionality. The only snag was that this didn’t match the recipe as described in historical texts. Now the same team is back with a fresh analysis of samples collected from a recently discovered site that confirms the Romans did indeed use hot mixing, according to a new paper published in the journal Nature Communications.

As we’ve reported previously, like today’s Portland cement (a basic ingredient of modern concrete), ancient Roman concrete was basically a mix of a semi-liquid mortar and aggregate. Portland cement is typically made by heating limestone and clay (as well as sandstone, ash, chalk, and iron) in a kiln. The resulting clinker is then ground into a fine powder with just a touch of added gypsum to achieve a smooth, flat surface. But the aggregate used to make Roman concrete was made up of fist-sized pieces of stone or bricks.

In his treatise De architectura (circa 30 CE), the Roman architect and engineer Vitruvius wrote about how to build concrete walls for funerary structures that could endure for a long time without falling into ruin. He recommended the walls be at least two feet thick, made of either “squared red stone or of brick or lava laid in courses.” The brick or volcanic rock aggregate should be bound with mortar composed of hydrated lime and porous fragments of glass and crystals from volcanic eruptions (known as volcanic tephra).

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Sending astronauts to the red planet will be a decades-long activity and cost many billions of dollars. So why should NASA undertake such a bold mission?

A new report published Tuesday, titled “A Science Strategy for the Human Exploration of Mars,” represents the answer from leading scientists and engineers in the United States: finding whether life exists, or once did, beyond Earth.

“We’re searching for life on Mars,” said Dava Newman, a professor in the Department of Aeronautics and Astronautics at Massachusetts Institute of Technology and co-chair of the committee that wrote the report, in an interview with Ars. “The answer to the question ‘are we alone‘ is always going to be ‘maybe,’ unless it becomes yes.”

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Near the end of the film A House of Dynamite, a fictional American president portrayed by Idris Elba sums up the theory of nuclear deterrence.

“Just being ready is the point, right?” Elba says. “It keeps people in check. Keeps the world straight. If they see how prepared we are, no one starts a nuclear war.”

There’s a lot that goes wrong in the film, namely the collapse of deterrence itself. For more than 60 years, the US military has used its vast arsenal of nuclear weapons, constantly deployed on Navy submarines, at Air Force bomber bases, and in Minuteman missile fields, as a way of saying, “Don’t mess with us.” In the event of a first strike against the United States, an adversary would be assured of an overwhelming nuclear response, giving rise to the concept of mutual assured destruction.

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© US Air Force/Senior Airman Clayton Wear

Nearly a decade after Pebble’s nascent smartwatch empire crumbled, the brand is staging a comeback with new wearables. The Pebble Core Duo 2 and Core Time 2 are a natural evolution of the company’s low-power smartwatch designs, but its next wearable is something different. The Index 01 is a ring, but you probably shouldn’t call it a smart ring. The Index does just one thing—capture voice notes—but the firm says it does that one thing extremely well.

Most of today’s smart rings offer users the ability to track health stats, along with various minor smartphone integrations. With all the sensors and data collection, these devices can cost as much as a smartwatch and require frequent charging. The Index 01 doesn’t do any of that. It contains a Bluetooth radio, a microphone, a hearing aid battery, and a physical button. You press the button, record your note, and that’s it. The company says the Index 01 will run for years on a charge and will cost just $75 during the preorder period. After that, it will go up to $99.

Core Devices, the new home of Pebble, says the Index is designed to be worn on your index finger (get it?), where you can easily mash the device’s button with your thumb. Unlike recording notes with a phone or smartwatch, you don’t need both hands to create voice notes with the Index.

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In a lawsuit filed against top Trump administration officials on Monday, Apple was accused of caving to unconstitutional government demands by removing an Immigration and Customs Enforcement-spotting app from the App Store with more than a million users.

In his complaint, Joshua Aaron, creator of ICEBlock, cited a Fox News interview in which Attorney General Pam Bondi “made plain that the United States government used its regulatory power to coerce a private platform to suppress First Amendment-protected expression.”

Suing Bondi—along with Department of Homeland Security Secretary Kristi Noem, Acting Director of ICE Todd Lyons, White House “Border Czar” Thomas D. Homan, and unnamed others—Aaron further alleged that US officials made false statements and “unlawful threats” to criminally investigate and prosecute him for developing ICEBlock.

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Netflix won the bidding war for Warner Bros. Discovery’s (WBD’s) streaming and movie studio businesses last week. But Paramount Skydance isn’t relenting on its dreams of owning WBD and is pushing forward with a hostile takeover bid.

On Friday, Netflix announced that it had agreed to pay an equity value of $72 billion, or an approximate total enterprise value of $82.7 billion, for WBD’s streaming and film businesses, as well as its film and TV libraries. The deal includes HBO and the HBO Max streaming service but not WBD’s cable channels, which are to be split off ahead of the acquisition into a separate company called Discovery Global. Netflix said WBD’s split should conclude in Q3 2026.

Paramount has different plans, though.

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The 2025 Formula 1 World Championship drew to a close this past weekend in Abu Dhabi, and with it came the end of the current generation of cars. After a grueling 24 races, the title was decided in a three-way fight by the finest of margins; just two points, less than half a percent, separated the winning driver from second place when the checkered flag waved on Sunday.

Coming into Abu Dhabi, McLaren’s Lando Norris was, if not a comfortable favorite, then at least the driver with the highest odds of prevailing. After a strong start to the season, the British driver’s form dipped at the Dutch Grand Prix. But he bounced back, retaking the championship lead from his Australian teammate Oscar Piastri in Mexico in October.

For much of the season, it seemed to be a two-car race. McLaren had a clear car advantage and two strong drivers, suggesting a repeat of the years we saw Lewis Hamilton and Nico Rosberg duking it out to bring home titles for Mercedes. But that didn’t figure on Red Bull developing its car late in the season. New boss Laurent Mekies has revitalized the energy drinks squad, and four-time champion Max Verstappen was able to close inexorably toward the McLaren drivers in the points with a string of sublime performances.

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Almost every bit of bike testing I’ve done starts out the same way. After assembling the bike, I set the seatpost to its maximum recommended height, take it on a short test ride, and try to figure out new and creative phrasing to describe the same old problem: The frame isn’t quite big enough to accommodate my legs. While I’m on the tall side at a bit over 6 feet (~190 cm), I’m definitely not abnormally large. Yet very few e-bike manufacturers seem to be interested in giving people my height a comfortable ride.

So imagine my surprise when, within two blocks of my first ride on the XPress 750, I had to pull off to the side of the street and lower the seat. This was especially notable given that the XPress is a budget bike (currently on sale for just under $1,000.00) that is only offered in a single frame size. So kudos to Lectric for giving me a comfortable and enjoyable ride, and doing so with a lot of features I wouldn’t expect at this price point.

That said, hitting that price necessitated some significant compromises. We’ll discuss those in detail so you can get a sense of whether any of them will get in the way of your riding enjoyment.

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© John Timmer

Meta has agreed to make changes to its “pay or consent” business model in the EU, seeking to agree to a deal that avoids further regulatory fines at a time when the bloc’s digital rule book is drawing anger from US authorities.

On Tuesday, the European Commission announced that the social media giant had offered users an alternative choice of Facebook and Instagram services that would show them fewer personalized advertisements.

The offer follows an EU investigation into Meta’s policy of requiring users either to consent to data tracking or pay for an ad-free service. The Financial Times reported on optimism that an agreement could be reached between the parties in October.

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© Derick Hudson

Prime Video dropped an extended teaser for the fifth and final season of The Boys—based on the comic book series of the same name by Garth Ennis and Darick Robertson—during CCXP in Sao Paulo, Brazil. And it looks like we’re getting nothing less than a full-on Supe-ocalypse as an all-powerful Homelander seeks revenge on The Boys.

(Spoilers for prior seasons of The Boys and S2 of Gen V below.)

Things were not looking good for our antiheroes after the S4 finale. They managed to thwart the assassination of newly elected US President Robert Singer, but new Vought CEO/evil supe Sister Sage (Susan Heyward) essentially overthrew the election and installed Senator Steve Calhoun (David Andrews) as president. Calhoun declared martial law, and naturally, Homelander (Antony “Give Him an Emmy Already” Starr) swore loyalty as his chief enforcer. Butcher (Karl Urban) and Annie (Erin Moriarty) escaped, but the rest of The Boys were rounded up and placed in re-education—er, “Freedom”—camps.

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It’s time to admit, before God and the good readers of Ars Technica, that I have a problem. I love roguelikes. Reader, I can’t get enough of them. If there’s even a whisper of a hot new roguelike on Steam, I’m there. You may call them arcane, repetitive, or maddeningly difficult; I call them heaven.

The second best part of video games is taking a puny little character and, over 100 hours, transforming that adventurer into a god of destruction. The best thing about video games is doing the same thing in under an hour. Beat a combat encounter, get an upgrade. Enter a new area, choose a new item. Put together a build and watch it sing.

If you die—immediately ending your ascent and returning you to the beginning of the game—you’ll often make a pit stop at a home base to unlock new goodies to help you on your next run. (Some people distiguish between roguelikes and “roguelites,” with the latter including permanent, between-run upgrades. For simplicity’s sake, I’ll use “roguelike” as an umbrella term).

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© Supergiant Games

Popular genetics tests can’t tell you much about your dog’s personality, according to a recent study.

A team of geneticists recently found no connection between simple genetic variants and behavioral traits in more than 3,200 dogs, even though previous studies suggested that hundreds of genes might predict aspects of a dog’s behavior and personality. That’s despite the popularity of at-home genetic tests that claim they can tell you whether your dog’s genes contain the recipe for anxiety or a fondness for cuddles.

This is Max, and no single genetic variant can explain why he is the way he is. Credit: Kiona Smith

Gattaca for dogs, except it doesn’t work

University of Massachusetts genomicist Kathryn Lord and her colleagues compared DNA sequences and behavioral surveys from more than 3,000 dogs whose humans had enrolled them in the Darwin’s Ark project (and filled out the surveys). “Genetic tests for behavioral and personality traits in dogs are now being marketed to pet owners, but their predictive accuracy has not been validated,” wrote Lord and her colleagues in their recent paper.

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© Alberto Menendez Cervero

CHANCAY, Peru—The elevator doors leading to the fifth-floor control center open like stage curtains onto a theater-sized screen.

This “Operations Productivity Dashboard” instantaneously displays a battery of data: vehicle locations, shipping times, entry times, loading data, unloading data, efficiency statistics.

Most striking, though, are the bold lines arcing over the dashboard’s deep-blue Pacific—digital streaks illustrating the routes that lead thousands of miles across the ocean, from this unassuming city, to Asia’s biggest ports.

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© Hidalgo Calatayud Espinoza/picture alliance via Getty Images

Somewhere, a pig is catching some sweet air.

In a rare move for a streaming service, Fubo announced today that it’s lowering the prices for some of its subscription plans.

Fubo is a sports-focused vMVPD (virtual multichannel video programming distributor, or a company that enables people to watch traditional TV channels live over the Internet). Disney closed its acquisition of Fubo in October.

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The bidding war is over, and Netflix has been declared the winner.

After flirting with Paramount Skydance and Comcast, Warner Bros. Discovery (WBD) has decided to sell its streaming and movie studios business to Netflix. If approved, the deal is set to overturn the media landscape and create ripples that will affect Hollywood for years.

$72 billion acquisition

Netflix will pay an equity value of $72 billion, or an approximate total enterprise value of $82.7 billion, for Warner Bros. All of WBD has a $60 billion market value, NBC News notes.

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The Black Death ravaged medieval Western Europe, ultimately wiping out roughly one-third of the population. Scientists have identified the bacterium responsible and its likely origins, but certain specifics of how and why it spread to Europe are less clear. According to a new paper published in the journal Communications Earth & Environment, either one large volcanic eruption or a cluster of eruptions might have been the triggering factor, setting off a chain of events that brought the plague to the Mediterranean region in the 1340s.

Technically, we’re talking about the second plague pandemic. The first, known as the Justinian Plague, broke out about 541 CE and quickly spread across Asia, North Africa, the Middle East, and Europe. (The Eastern Roman Emperor Justinian I, for whom the pandemic is named, actually survived the disease.) There continued to be outbreaks of the plague over the next 300 years, although the disease gradually became less virulent and died out. Or so it seemed.

In the Middle Ages, the Black Death burst onto the scene, with the first historically documented outbreak occurring in 1346 in the Lower Volga and Black Sea regions. That was just the beginning of the second pandemic. During the 1630s, fresh outbreaks of plague killed half the populations of affected cities. Another bout of the plague significantly culled the population of France during an outbreak between 1647 and 1649, followed by an epidemic in London in the summer of 1665. The latter was so virulent that, by October, one in 10 Londoners had succumbed to the disease—over 60,000 people. Similar numbers perished in an outbreak in Holland in the 1660s. The pandemic had run its course by the early 19th century, but a third plague pandemic hit China and India in the 1890s. There are still occasional outbreaks today.

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I wrote a couple of weeks ago about my personal homebrew Steam Machine, a self-built desktop under my TV featuring an AMD Ryzen 7 8700G processor and a Radeon 780M integrated GPU. I wouldn’t recommend making your own version of this build, especially with RAM prices as they currently are, but there are all kinds of inexpensive mini PCs on Amazon with the same GPU, and they’ll all be pretty good at playing the kinds of games that already run well on the less-powerful Steam Deck.

But this kind of hardware is an imperfect proxy for the Steam Machine that Valve plans to launch sometime next year—that box will include a dedicated GPU with 8GB of dedicated video memory, presenting both benefits and possible pitfalls compared to a system with an integrated GPU.

As a last pre-Steam Machine follow-up to our coverage so far, we’ve run tests on several games we test regularly in our GPU reviews to get a sense of how current versions of SteamOS stack up to Windows running on the same hardware. What we’ve found so far is basically the inverse of what we found when comparing handhelds: Windows usually has an edge on SteamOS’s performance, and sometimes that gap is quite large. And SteamOS also exacerbates problems with 8GB GPUs, hitting apparent RAM limits in more games and at lower resolutions compared to Windows.

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© Andrew Cunningham