The mantis shrimp comes equipped with its own weapons. It has claws that look like permanently clenched fists that are known as dactyl clubs. But when it smashes the shells of its prey, these fists come out of it undamaged.

When throwing punches, mantis shrimp can strike at the speed of a .22 caliber bullet (about 1,316 kmph or 818 mph)—one of the fastest movements in the animal kingdom. That generates a force over a thousand times their body weight. However, unleashing that much energy can backfire because the shockwaves it produces could seriously damage an animal’s soft tissue. None of that seems to affect the mantis shrimp. Now we finally know why.

When a team of researchers from Northwestern University studied the dactyl clubs of one mantis shrimp species, they found that they have layered structures that selectively block sound waves, acting as protective gear against vibrations that could otherwise harm the shrimp. These types of structures, known as phononic mechanisms, filter out sound waves that could otherwise cause nerve and soft tissue trauma.

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GARDEN GROVE, Calif.—There's no shortage of companies looking to reinvent the delivery experience using everything from sidewalk drones to electric vans. Some are succeeding, but many more have failed by trying to radically rethink the simple, age-old task of getting stuff from one place to another.

Harbinger likewise wants to shake up part of that industry but in a decidedly understated way. If you found yourself stuck in traffic behind one of the company's all-electric vehicles, there's a good chance you wouldn't even notice. The only difference? The lack of diesel smoke and clatter.

From the outside, Harbinger's pre-production machine looks identical to the standard flat-sided, vinyl-wrapped delivery vehicles that seemingly haven't changed in decades. That's because they really haven't. Those familiar UPS and FedEx machines are built on common chassis like Ford's F-59 or Freightliner's MT45, with ladder chassis and leaf spring designs dating back to the earliest days of trucking.

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Isar Aerospace, a German startup founded seven years ago, is positioned to become the first in a new generation of European launch companies to reach orbit with a privately funded rocket.

The company announced Friday that the first stage of its Spectrum rocket recently completed a 30-second test-firing on a launch pad in the northernmost reaches of mainland Europe. The nine-engine booster ignited on a launch pad at Andøya Spaceport in Norway on February 14.

The milestone follows a similar test-firing of the Spectrum rocket's second stage last year. With these two accomplishments, Isar Aerospace says its launch vehicle is qualified for flight.

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An ongoing measles outbreak that began in one of Texas' least vaccinated counties has mushroomed to 90 cases across a cluster of seven counties in the state, according to an update by the Texas Department of State Health Services on Friday.

The outbreak may have also spread across the border to New Mexico, where nine cases have been reported. In an email to Ars, Robert Nott, the communications director for the New Mexico Department of Health, said that as of today, the department has not confirmed a connection between the nine cases and any of the confirmed cases in Texas.

However, all nine of the cases are in Lea County, New Mexico, which sits at the border with Gaines County, Texas, the epicenter of the outbreak. Of Texas' 90 cases, 57 are in Gaines, which has a vaccination rate among kindergarteners of just 82 percent this school year. The lack of a clear connection between the Texas and New Mexico cases may be yet more worrying because it suggests undetected community spread and a heightened risk of transmission in Lea, the health department noted in an alert last week.

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You might suspect that a one-line bill about Bigfoot that bears the number "666" is a joke, but AB-666 is apparently a serious offering from California Assemblymember Chris Rogers. Rogers represents a California district known for its Bigfoot sightings (or "sightings," depending on your persuasion—many of these have been faked), and he wants to make Bigfoot the "official cryptid" of the state.

His bill notes that California already has many official symbols, including the golden poppy (official flower), the California redwood (official tree), the word "Eureka" (official motto), the red-legged frog (official amphibian), the grizzly bear (official animal), swing dancing (official dance), and the saber-toothed cat (official fossil). The state has so many of these that there are separate categories for freshwater fish (golden trout) and marine fish (garibaldi). So why not, Rogers wants to know, "designate Bigfoot as the official state cryptid"?

That's... pretty much the bill, which was introduced this week and already has Bigfoot advocates excited. SFGate talked to Matt Moneymaker, who it describes as "a longtime Bigfoot researcher and former star of the Animal Planet series Finding Bigfoot," about the bill. Moneymaker loves it, noting that he has personally “had a face-to-face encounter one time, after which I was absolutely sure they existed because I had one about 20 feet in front of me, growling at me.”

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More than a year’s worth of internal communications from one of the world’s most active ransomware syndicates have been published online in a leak that exposes tactics, trade secrets, and internal rifts of its members.

The communications come in the form of logs of more than 200,000 messages members of Black Basta sent to each other over the Matrix chat platform from September 2023 to September 2024, researchers said. The person who published the messages said the move was in retaliation for Black Basta targeting Russian banks. The leaker's identity is unknown; it’s also unclear if the person responsible was an insider or someone outside the group who somehow gained access to the confidential logs.

How to be your own worst enemy

Last year, the FBI and Cybersecurity and Infrastructure Security Agency said Black Basta had targeted 12 of the 16 US critical infrastructure sectors in attacks mounted on 500 organizations around the world. One notable attack targeted Ascention, a St. Louis-based health care system with 140 hospitals in 19 states. Other victims include Hyundai Europe, UK-based outsourcing firm Capita, the Chilean Government Customs Agency, and UK utility company Southern Water. The native Russian-speaking group has been active since at least 2022.

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As the owner of a 3-year-old laptop, I feel the finite lifespan of lithium batteries acutely. It's still a great machine, but the cost of a battery replacement would take me a significant way down the path of upgrading to a newer, even greater machine. If only there were some way to just plug it in overnight and come back to a rejuvenated battery.

While that sounds like science fiction, a team of Chinese researchers has identified a chemical that can deliver fresh lithium to well-used batteries, extending their life. Unfortunately, getting it to work requires that the battery has been constructed with this refresh in mind. Plus it hasn't been tested with the sort of lithium chemistry that is commonly used in consumer electronics.

Finding the right chemistry

The degradation of battery performance is largely a matter of its key components gradually dropping out of use within the battery. Through repeated cyclings, bits of electrodes fragment and lose contact with the conductors that collect current, while lithium can end up in electrically isolated complexes. There's no obvious way to re-mobilize these lost materials, so the battery's capacity drops. Eventually, the only way to get more capacity is to recycle the internals into a completely new battery.

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On Wednesday, Clone Robotics released video footage of its Protoclone humanoid robot, a full-body machine that uses synthetic muscles to create unsettlingly human-like movements. In the video, the robot hangs suspended from the ceiling as its limbs twitch and kick, marking what the company claims is a step toward its goal of creating household-helper robots.

Poland-based Clone Robotics designed the Protoclone with a polymer skeleton that replicates 206 human bones. The company built the robot with the hopes that it will one day be able to operate human tools and perform tasks like doing laundry, washing dishes, and preparing basic meals.

The Protoclone reportedly contains over 1,000 artificial muscles built with the company's "Myofiber" technology, which builds on the McKibbin pneumatic muscle concept. These muscles work through mesh tubes containing balloons that contract when filled with hydraulic fluid, mimicking human muscle function. A 500-watt electric pump serves as the robot's "heart," pushing fluid at 40 standard liters per minute.

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PC- and accessory-maker Asus has never been one to shy away from a strange idea, whether it's a tablet that you need to slide your smartphone into before you can use it, a laptop touchpad that's also a screen, or going with "Rock Solid, Heart Touching" as a corporate slogan. But an announcement the company made today stands out: Asus is launching something called the Asus Fragrance Mouse, a fairly regular-looking wireless mouse that also smells.

Yes, the main differentiating feature of the Fragrance Mouse is a "refillable vial" in its underside, next to the place where you put the battery and store its 2.4 GHz USB wireless receiver when not in use. The vial stores "aromatic oils" that "can be washed and refilled with different scents." Asus doesn't make any specific recommendations about the scents that you can put in the vial, so you have a lot of latitude as to what, exactly, you can make your mouse smell like.

Aside from the customizable stink, the Fragrance Mouse is a reasonably full-featured functional PC accessory. It supports Bluetooth as well as the USB wireless dongle, three DPI levels (1,200, 1,600, and 2,400) for customizing responsiveness, and understated white and pink color options. Asus says the mouse's switches are rated for 10 million clicks, ensuring that you will be able to smell your mouse for years to come.

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On May 16, 2024, a powerful derecho swept through Houston, killing seven people and causing significant damage to several of the city's towering skyscrapers. Those buildings were constructed to withstand much stronger hurricane-force winds up to 67 meters per second, as one would get with a Category 4 hurricane. The derecho's winds peaked at 40 meters per second, well below that threshold. And when Hurricane Beryl hit Houston that July with roughly comparable wind speeds of 36 meters per second, the damage wasn't nearly so severe. Why would that be the case?

Engineers at Florida International University (FIU) in Miami think they've found the answer, according to a new paper published in the journal Frontiers in Built Environment. "We show that a type of highly localized strong winds called ‘downbursts,’ which were generated during the May derecho, can significantly impact tall buildings and facades due to their unique characteristics in comparison to hurricanes,” said co-author Amal Elawady. This is particularly the case for skyscrapers that are close together, creating a "wind-channeling" interference effect that increases pressure on walls and windows.

One might assume that hurricanes and derechos are similar in that they both produce markedly intense winds, but the origin and characteristics of those winds are very different, per the authors. Hurricanes are vast tropical storms that form over warm ocean waters and affect large areas, usually lasting for several days, accompanied by heavy rains, storm surges, waves, and yes, high winds. By contrast, derechos and downbursts are much more localized convective systems, producing hurricane-force winds but over a much smaller area and shorter period of time.

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Elon Musk apparently no longer believes that crowdsourcing fact-checking through Community Notes can never be manipulated and is, thus, the best way to correct bad posts on his social media platform X.

Community Notes are supposed to be added to posts to limit misinformation spread after a broad consensus is reached among X users with diverse viewpoints on what corrections are needed. But Musk now claims a "fix" is needed to prevent supposedly outside influencers from allegedly gaming the system.

"Unfortunately, @CommunityNotes is increasingly being gamed by governments & legacy media," Musk wrote on X. "Working to fix this."

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High-revving naturally aspirated engines and their associated screaming soundtracks might be on their way back to Formula 1. Not with next year's rule changes—that will see even bigger lithium-ion batteries and an even more powerful electric motor, paired with a turbocharged V6. But the sport is starting to think more seriously about the technical rules that will go into effect in 2030, and in an Instagram post yesterday, the man in charge of those rules signaled that he's open to cars that might be louder, lighter, and less complicated.

Mohammed Ben Sulayem's tenure as president of the Federation Internationale de l'Automobile has been packed with controversy. The former rally driver has alienated many F1 drivers with clampdowns on jewelry and, most recently, swearing, as well as a refusal to explain what happens to the money the FIA collects as fines.

He also ruffled feathers when the FIA opened up the entry process for new teams into the sport and then approved an entry by Andretti Global. While the FIA said yes, the commercial side (which is owned by Liberty Media) and the teams wanted nothing to do with an 11th team—at least until the $200 million anti-dilution fee was more than doubled and Michael Andretti stepped aside.

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Just days after anti-vaccine advocate Robert F. Kennedy Jr. became the country's top health official, the Centers for Disease Control and Prevention has already pulled back some of its efforts to protect Americans with safe, lifesaving vaccines. The agency has indefinitely postponed a public meeting of its vaccine advisory committee and killed a campaign promoting seasonal flu shots.

Last weekend, a Washington Post columnist noted on Bluesky that the CDC's effective "Wild to Mild" seasonal flu shot campaign had vanished. The campaign highlighted how the seasonal vaccines can prevent influenza infections from becoming severe or life-threatening. It used animals as an analogy for the diminished threat of the flu virus after vaccination, juxtaposing a lion and a domestic kitten in one ad while showing an elephant and a mouse in another. The CDC page no longer leads to a "not found" landing page, but it wasn't restored either. It now redirects to a 2023 article announcing the campaign, which does not contain the shareable resources found on the original page. The removal is startling given that the US is currently battling one of the worst flu seasons in 15 years.

NPR first reported that CDC staff were told in a meeting Wednesday, February 19, the campaign was halted. In a story Thursday, Stat News added more context to the decision. According to the outlet's sources, the Department of Health and Human Services’ assistant secretary for public affairs informed the CDC that Kennedy wanted vaccine advertisements to emphasize "informed consent" instead.

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Rust, a modern and notably more memory-safe language than C, once seemed like it was on a steady, calm, and gradual approach into the Linux kernel.

In 2021, Linux kernel leaders, like founder and leader Linus Torvalds himself, were impressed with the language but had a "wait and see" approach. Rust for Linux gained supporters and momentum, and in October 2022, Torvalds approved a pull request adding support for Rust code in the kernel.

By late 2024, however, Rust enthusiasts were frustrated with stalls and blocks on their efforts, with the Rust for Linux lead quitting over "nontechnical nonsense." Torvalds said at the time that he understood it was slow, but that "old-time kernel developers are used to C" and "not exactly excited about having to learn a new language." Still, this could be considered a normal amount of open source debate.

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In December, roughly a dozen employees inside a manufacturing company received a tsunami of phishing messages that was so big they were unable to perform their day-to-day functions. A little over an hour later, the people behind the email flood had burrowed into the nether reaches of the company's network. This is a story about how such intrusions are occurring faster than ever before and the tactics that make this speed possible.

The speed and precision of the attack—laid out in posts published Thursday and last month—are crucial elements for success. As awareness of ransomware attacks increases, security companies and their customers have grown savvier at detecting breach attempts and stopping them before they gain entry to sensitive data. To succeed, attackers have to move ever faster.

Breakneck breakout

ReliaQuest, the security firm that responded to this intrusion, said it tracked a 22 percent reduction in the “breakout time” threat actors took in 2024 compared with a year earlier. In the attack at hand, the breakout time—meaning the time span from the moment of initial access to lateral movement inside the network—was just 48 minutes.

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YouTube dominates online video, but it's absolutely crammed full of ads these days. A YouTube Premium subscription takes care of that, but ad blockers do exist. Google seems to have gotten the message—a cheaper streaming subscription is on the way that drops YouTube Music from the plan. You may have to give up more than music to get the cheaper rate, though.

Google started testing cheaper YouTube subscriptions in a few international markets, including Germany and Australia, over the past year. Those users have been offered the option of subscribing to the YouTube Premium plan, which runs $13.99 in the US, or a new plan that costs about half as much. For example, in Australia, the options are AU$23 for YouTube Premium or AU$12 for "YouTube Premium Lite."

The Lite plan drops YouTube Music but keeps ad-free YouTube, which is all most people want anyway. Based on the early tests, these plans will probably drop a few other features that you'd miss, including background playback and offline downloads. However, this plan could cost as little as $7–$8 in the US.

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Last month, DeepSeek turned the AI world on its head with the release of a new, competitive simulated reasoning model that was free to download and use under an MIT license. Now, the company is preparing to make the underlying code behind that model more accessible, promising to release five open source repos starting next week.

In a social media post late Thursday, DeepSeek said the daily releases it is planning for its "Open Source Week" would provide visibility into "these humble building blocks in our online service [that] have been documented, deployed and battle-tested in production. As part of the open-source community, we believe that every line shared becomes collective momentum that accelerates the journey."

While DeepSeek has been very non-specific about just what kind of code it will be sharing, an accompanying GitHub page for "DeepSeek Open Infra" promises the coming releases will cover "code that moved our tiny moonshot forward" and share "our small-but-sincere progress with full transparency." The page also refers back to a 2024 paper detailing DeepSeek's training architecture and software stack.

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After the United Kingdom demanded that Apple create a backdoor that would allow government officials globally to spy on encrypted data, Apple decided to simply turn off encryption services in the UK rather than risk exposing its customers to snooping.

Apple had previously allowed end-to-end encryption of data on UK devices through its Advanced Data Protection (ADP) tool, but that ended Friday, a spokesperson said in a lengthy statement.

"Apple can no longer offer Advanced Data Protection (ADP) in the United Kingdom to new users and current UK users will eventually need to disable this security feature," Apple said.

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Senior politicians in Japan are not going to let Nissan die easily. The automaker has been struggling for some time now, with an outdated product portfolio, ongoing quarterly losses, and soon, the closure of factories and thousands of layoffs. The Japanese government has been trying to find a suitor and had hoped that Honda would do its patriotic duty and save its rival from extinction.

That deal—one branded "a desperate move" by former Nissan CEO and fugitive from Japanese justice Carlos Ghosn—fell apart last week after Renault demanded a price premium for its shares in Nissan, and Nissan demanded a merger of equals with Honda. In reality, it was always going to be a takeover, with very little in it for Honda in the way of complimentary product lines or access to new technologies.

Today, we learned of yet another desperate move—the former Japanese Prime Minister Yoshihide Suga is among a group that is trying to get Tesla to invest in Nissan instead.

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On Friday, a Coinbase executive declared the "war against crypto" over—"at least as it applies to Coinbase."

According to Coinbase Chief Legal Officer Paul Grewal, the US Securities and Exchange Commission (SEC) plans to drop its lawsuit against the largest US cryptocurrency exchange as the agency shifts to embrace Donald Trump's new approach to regulating cryptocurrency in the US.

The SEC sued Coinbase in 2023, accusing Coinbase of "operating its crypto asset trading platform as an unregistered national securities exchange, broker, and clearing agency" and "failing to register the offer and sale of its crypto asset staking-as-a-service program."

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