Author name: Shannon Garcia

cdc-recommends-spring-covid-booster-for-people-65-and-up

CDC recommends spring COVID booster for people 65 and up

65 and up, booster dose, CDC, COVID-19, COVID-19 vaccine, health, hospitalization, Science, spring booster / /

More protection —

The shot should be taken at least four months since the last COVID vaccination.

–

The Moderna Spikevax COVID-19 vaccine is shown at a CVS in 2023.

Enlarge / The Moderna Spikevax COVID-19 vaccine is shown at a CVS in 2023.

People ages 65 and up should get another dose of a COVID-19 vaccine this spring, given the age group’s higher risk of severe disease and death from the pandemic virus, the Centers for Disease Control and Prevention announced Wednesday.

Earlier today, an advisory committee for the CDC voted overwhelmingly in favor of recommending the spring booster dose. And late this afternoon, CDC Director Mandy Cohen signed off on the recommendation, allowing boosting to begin.

“Today’s recommendation allows older adults to receive an additional dose of this season’s COVID-19 vaccine to provide added protection,” Cohen said in a statement. “Most COVID-19 deaths and hospitalizations last year were among people 65 years and older. An additional vaccine dose can provide added protection that may have decreased over time for those at highest risk.”

The spring booster will be an additional shot of the 2023–2024 COVID-19 vaccines made by Pfizer-BioNTech, Moderna, and Novavax. The booster dose should be taken after at least four months have passed since a previous COVID-19 vaccination. However, as FDA representative David Kaslow noted in today’s advisory committee meeting, the FDA will likely approve a 2024–2025 version of COVID-19 vaccines for this coming fall. Given that, it’s best for people to get their spring booster dose by the end of June, so they can be ready for another booster before the winter when COVID-19 has generally peaked.

A report published earlier this month by the CDC found that the 2023–2024 COVID-19 vaccine was about 54 percent effective at preventing symptomatic COVID-19 when compared against people who had not received the latest vaccine. However, the CDC estimates that only about 22 percent of adults in the US have gotten a COVID-19 booster this season, and just over 40 percent of people ages 65 and up have gotten the shot.

People over age 65 made up 67 percent of COVID-19 hospitalizations between October 2023 and January 2024, according to CDC data presented at today’s advisory committee meeting. In early January, COVID-19 hospitalizations hit a seasonal high of about 35,000 weekly new admissions per week and nearly 2,500 weekly deaths.

The advisers debated how to word their recommendation for a spring booster and whether getting a booster should require consulting with a health care provider. But, ultimately, the committee decided on a more permissive recommendation, allowing anyone in the age group who wants a booster to be able to freely get one, including at convenient locations, such as local pharmacies.

“Data continues to show the importance of vaccination to protect those most at risk for severe outcomes of COVID-19,” the CDC said in its announcement of the recommendation. “An additional dose of the updated COVID-19 vaccine may restore protection that has waned since a fall vaccine dose, providing increased protection to adults ages 65 years and older.”

The CDC noted that its previous recommendations allow people who are immunocompromised to get additional doses of the COVID-19 vaccines.

CDC recommends spring COVID booster for people 65 and up Read More »

speedy-“sd-express”-cards-have-gone-nowhere-for-years,-but-samsung-could-change-that

Speedy “SD Express” cards have gone nowhere for years, but Samsung could change that

microSD, samsung, Tech / /

fast, but for whom? —

Compatibility issues and thermals have, so far, kept SD Express from taking off.

–

Samsung's SD Express-compatible microSD cards.

Enlarge / Samsung’s SD Express-compatible microSD cards.

Samsung

Big news for people who like (physically) small storage: Samsung says that it is sampling its first microSD cards that support the SD Express standard, which will allow them to hit sustained read speeds of as much as 800MB per second. That’s a pretty substantial boost over current SD cards, which tend to top out around 80MB or 90MB per second (for cheap commodity cards) and around 250MB per second for the very fastest UHS-II-compatible professional cards.

As Samsung points out, that 800MB/s figure puts these tiny SD Express cards well above the speeds possible with older SATA SSDs, which could make these cards more useful as primary storage devices for PCs or single-board computers that can support the SD Express standard (more on that later).

Samsung is currently sampling a 256GB version of the SD Express card that “will be available for purchase later this year.”

Because this is a tech company announcement in 2024, Samsung also makes an obligatory mention of AI, though there’s absolutely nothing specific the cards are doing to make them particularly well-suited for generative AI tasks other than “be faster.” Adding extra storage to phones or PCs could be useful for on-device generative AI—storing larger language models locally, for example—but most software companies that are offering generative AI features in their OSes or browsers are mostly using server-side processing to do all the heavy lifting for now.

What’s the SD Express standard, again?

The SD Express standard allows SD cards to take advantage of a single lane’s worth of PCIe bandwidth, boosting their theoretical speeds well beyond the 104MB/s cap of the UHS-I standard or the 312MB/s cap of UHS-II (UHS-III exists but isn’t widely used). The SD Express spec was last updated back in October 2023, which bumped it up from PCIe 3.0 to 4.0; it also defines four speed classes with read/write speeds of between 150MB and 600MB per second—a target these Samsung cards claim to be able to surpass.

But the original version of SD Express goes back to mid-2018, when it was added to version 7.0 of the SD specification. And adoption from SD card makers and device makers has been slow to nonexistent so far; AData makes full-size SD Express cards in 256GB and 512GB capacities that you can buy, but that’s about it. Lexar announced some cards back in 2021 that never ended up being released. And even if you had a card, you’d have trouble finding devices that could actually take advantage of the higher speeds, since most cameras, phones, and computers have opted to stick with the more common UHS.

One issue blocking SD Express adoption is that the card and the device have to support SD Express to get the promised speeds; an SD Express card inserted into a regular run-of-the-mill UHS-I SD card slot will be limited to UHS-I speeds. And because both the slots and the cards are visually identical, it’s not always easy to tell which slots support specific speeds.

Heat may also be a major limiting factor when using these SD Express cards to move around hundreds of gigabytes’ worth of data or when using the SD card as the primary storage device in a computer (as you might in a Raspberry Pi or other single-board computers). There’s no room for this kind of thing within the confines of a microSD card slot, so the sustained read and write speeds of Samsung’s new cards could be a bit lower than the promised 800MB-per-second maximum.

The SD Express spec does have mechanisms for keeping thermals in a reasonable range. Samsung also mentions a “Dynamic Thermal Guard” technology that promises to manage the temperatures of its SD Express cards, though it’s not clear whether this is different from what’s already in the SD Express spec.

Samsung jumping into SD Express cards may be what the format needs to take off, or at least to become a viable niche within the wider market for external storage. It’s certainly not difficult to imagine a scenario where something with SSD-ish speeds in an SD card-sized package would be useful. But SD cards are mainly useful because they’re cheap, they’re widely compatible, and they’re fast enough for things like recording video, taking pictures, and loading games. SD Express cards have a long way to go before they can check all the same boxes.

Speedy “SD Express” cards have gone nowhere for years, but Samsung could change that Read More »

that-moment-when-you-land-on-the-moon,-break-a-leg,-and-are-about-to-topple-over

That moment when you land on the Moon, break a leg, and are about to topple over

intuitive machines, Science, Space / /

Goodnight, Odie —

“We hit harder than expected and skidded along the way.”

–

A photo of <em>Odysseus</em> the moment before it gently toppled over.” src=”https://cdn.arstechnica.net/wp-content/uploads/2024/02/IM1-800×437.jpg”></img><figcaption> <p><a data-height=Enlarge / A photo of Odysseus the moment before it gently toppled over.

Intuitive Machines

After six days and the public release of new images, engineers have finally pieced together the moments before, during, and after the Odysseus lander touched down on the Moon.

During a news conference on Wednesday, the chief executive of Intuitive Machines, Steve Altemus, described what his company has learned about what happened last Thursday evening as Odysseus made its powered descent down to the Moon.

From their control room in Houston, the mission operators watched with fraying nerves, as their range finders had failed. A last-minute effort to use altitude data from a NASA payload on board failed because the flight computer on board Odysseus could not ingest it in time. So the lander was, in essence, coming down to the Moon without any real-time altimetry data.

The last communication the operators received appeared to show that Odysseus had touched down on the Moon and was upright. But then, to their horror, all telemetry from the spacecraft ceased. The data on the flight controllers’ consoles in Houston froze. They feared the worst.

Skidding down to the Moon

About 10 minutes later, the lander sent a weak signal back. In that initial trickle of data, based on the lander’s inertial measurement unit, it appeared that Odysseus was partly on its side. But there were confusing signals.

On Wednesday, Altemus explained what the team has since pieced together. Because of the lack of altimetry data, Odysseus thought it was about 100 meters higher above the lunar surface than it actually was, so as it touched down it was traveling about three times faster than intended, about 3 meters per second. It was also moving laterally, with respect to the ground, at about 1 meter per second.

“We hit harder than expected and skidded along the way,” Altemus explained.

As it impacted and skidded, the spacecraft’s main engine was still firing. Then, just as the spacecraft touched down more firmly, there was a spike in the engine’s combustion chamber. This is consistent with the bell-shaped engine nozzle coming into contact with the lunar surface.

It is perhaps worth pausing a moment here to consider that this spacecraft, launched a week earlier, had just made an autonomous landing without knowing precisely where it was. But now it found itself on the Moon. Upon impact, one or more of the landing legs snapped as it came down hard. Then, at that very moment, with the engine still burning, an onboard camera snapped an image of the scene. Intuitive Machines published this photo on Wednesday. It’s spectacular.

“We sat upright, with the engine firing for a period of time,” Altemus said. “Then as it wound down, the vehicle just gently tipped over.”

Odysseus at rest on the lunar surface.” height=”1307″ src=”https://cdn.arstechnica.net/wp-content/uploads/2024/02/IM2-980×1307.jpg” width=”980″>

Enlarge / Odysseus at rest on the lunar surface.

Intuitive Machines

Based on the gravity of the Moon, Intuitive Machines and NASA calculated that it took about two seconds to tip over. The lander fell on its side, with a helium tank or radio shelf contacting the Moon. This protrusion, combined with the 12-degree slope of the terrain, means that Odysseus is now gently leaning on the lunar surface at about a 30-degree angle. On Tuesday, the spacecraft returned an image that verified these conclusions.

“We have that photo now to confirm that’s the orientation,” Altemus said.

Sleepy time

As Intuitive Machines has better understood the situation and the status of its vehicle, it has been able to download a torrent of data. NASA has gotten valuable information from all six of its payloads on board, said a project scientist for the space agency, Sue Lederer. As of Wednesday, NASA had been able to download about 50MB of data. The baseline for success was a single bit of data.

But time is running out as the Sun dips toward the horizon. Odysseus will run out of power as soon as Wednesday evening, entering the long lunar night. In about three weeks, as sunlight starts to hit the spacecraft’s solar panels again, Intuitive Machines will try to wake up the spacecraft. The odds are fairly long. The chemistry of its lithium-ion batteries doesn’t like cold, and temperatures will plummet to minus-280° Fahrenheit (minus-173° Celsius) in a few days. That may wreck the batteries or crack the electronics in the flight computer.

Yet hope remains eternal for a spacecraft its operators have taken to affectionately calling Odie. It has defied the odds so far. “He’s a scrappy little dude,” Lederer said. “I have confidence in Odie at this point.”

That moment when you land on the Moon, break a leg, and are about to topple over Read More »

github-besieged-by-millions-of-malicious-repositories-in-ongoing-attack

GitHub besieged by millions of malicious repositories in ongoing attack

Biz & IT, GitHub, repositories, Security, supply chain attack / /
GitHub besieged by millions of malicious repositories in ongoing attack

Getty Images

GitHub is struggling to contain an ongoing attack that’s flooding the site with millions of code repositories. These repositories contain obfuscated malware that steals passwords and cryptocurrency from developer devices, researchers said.

The malicious repositories are clones of legitimate ones, making them hard to distinguish to the casual eye. An unknown party has automated a process that forks legitimate repositories, meaning the source code is copied so developers can use it in an independent project that builds on the original one. The result is millions of forks with names identical to the original one that add a payload that’s wrapped under seven layers of obfuscation. To make matters worse, some people, unaware of the malice of these imitators, are forking the forks, which adds to the flood.

Whack-a-mole

“Most of the forked repos are quickly removed by GitHub, which identifies the automation,” Matan Giladi and Gil David, researchers at security firm Apiiro, wrote Wednesday. “However, the automation detection seems to miss many repos, and the ones that were uploaded manually survive. Because the whole attack chain seems to be mostly automated on a large scale, the 1% that survive still amount to thousands of malicious repos.”

Given the constant churn of new repos being uploaded and GitHub’s removal, it’s hard to estimate precisely how many of each there are. The researchers said the number of repos uploaded or forked before GitHub removes them is likely in the millions. They said the attack “impacts more than 100,000 GitHub repositories.”

GitHub officials didn’t dispute Apiiro’s estimates and didn’t answer other questions sent by email. Instead, they issued the following statement:

GitHub hosts over 100M developers building across over 420M repositories, and is committed to providing a safe and secure platform for developers. We have teams dedicated to detecting, analyzing, and removing content and accounts that violate our Acceptable Use Policies. We employ manual reviews and at-scale detections that use machine learning and constantly evolve and adapt to adversarial tactics. We also encourage customers and community members to report abuse and spam.

Supply-chain attacks that target users of developer platforms have existed since at least 2016, when a college student uploaded custom scripts to RubyGems, PyPi, and NPM. The scripts bore names similar to widely used legitimate packages but otherwise had no connection to them. A phone-home feature in the student’s scripts showed that the imposter code was executed more than 45,000 times on more than 17,000 separate domains, and more than half the time his code was given all-powerful administrative rights. Two of the affected domains ended in .mil, an indication that people inside the US military had run his script. This form of supply-chain attack is often referred to as typosquatting, because it relies on users making small errors when choosing the name of a package they want to use.

In 2021, a researcher used a similar technique to successfully execute counterfeit code on networks belonging to Apple, Microsoft, Tesla, and dozens of other companies. The technique—known as a dependency confusion or namespace confusion attack—started by placing malicious code packages in an official public repository and giving them the same name as dependency packages Apple and the other targeted companies use in their products. Automated scripts inside the package managers used by the companies then automatically downloaded and installed the counterfeit dependency code.

The technique observed by Apiiro is known as repo confusion.

“Similar to dependency confusion attacks, malicious actors get their target to download their malicious version instead of the real one,” Wednesday’s post explained. “But dependency confusion attacks take advantage of how package managers work, while repo confusion attacks simply rely on humans to mistakenly pick the malicious version over the real one, sometimes employing social engineering techniques as well.”

GitHub besieged by millions of malicious repositories in ongoing attack Read More »

paramount-ends-warner-bros.-discovery-merger-talks,-continues-mulling-sell-off

Paramount ends Warner Bros. Discovery merger talks, continues mulling sell-off

max, paramount, streaming, Tech, warner bros. discovery / /

Max and Paramount+ staying separate —

Report: Paramount still contemplating selling to Skydance Media.

–

Paramount ends Warner Bros. Discovery merger talks, continues mulling sell-off

Paramount+

Warner Bros. Discovery (WBD) and Paramount Global are no longer considering a merger that would have put the Max and Paramount+ streaming services under one corporate umbrella. Per a CNBC report today citing anonymous “people familiar with the matter,” WBD and Paramount had been mulling a merger for “several months.”

In December, reports started swirling about WBD and Paramount discussing a potential merger. Axios even reported that WBD CEO David Zaslav and Paramount CEO Bob Bakish met in person for “several hours” and that Zaslav also met with Shari Redstone, the owner of National Amusements Inc. (NAI), Paramount’s parent company. Now, CNBC reports that discussions between the media giants “cooled off this month.” Paramount and WBD haven’t commented.

When news of the potential merger dropped, it was unclear what sort of regulatory hurdles the media conglomerates might have faced if they tried becoming one. Combined, the companies would have had the second-biggest streaming business by subscriber count, trailing Netflix.

Debt was also a huge concern. Paramount is $14.6 billion in debt, per its earnings report shared today. WBD was $40 billion in debt at the time of merger talks but said it was eyeing a profitable streaming business. WBD is still in debt currently but reported this month that its streaming business became profitable, making $103 million for the year. Max’s most recent subscriber count is 97.7 million compared to 67.5 million for Paramount+.

Merging with Paramount would have meant WBD added another company with struggling legacy media assets to its portfolio. It also would have meant buying a streaming service that has yet to turn a profit as of this writing. Paramount’s streaming business lost $1.66 billion in 2023, it reported today.

Merger still possible

Although things with WBD reportedly didn’t work out, Paramount is still seriously considering a merger. CNBC reported that the company formed a committee and hired a financial adviser focused on analyzing potential bids for all or parts of the company.

Suitors recently tied to Paramount include Byron Allen and, reportedly, Skydance Media. The David Ellison-owned company is “still performing due diligence on a potential transaction,” CNBC said today, citing two of its anonymous sources. In January, Bloomberg reported that Skydance made an all-cash offer for NAI.

Paramount could also try to bundle its services with another company’s, which could attract subscribers to Paramount+ and help Paramount save money. It has already considered bundling Paramount+ with Comcast’s Peacock through a partnership or joint venture, The Wall Street Journal (WSJ) reported earlier this month. But Comcast doesn’t want to buy Paramount, per one of CNBC’s anonymous sources from today’s report.

Some streaming rivals to Paramount+ are already bundled together (such as Disney’s Disney+ and Hulu) and exploring joint ventures. As streaming services race to achieve the sort of profitability that Netflix has, big strategic moves, such as mergers, partnerships, and price hikes, are expected soon. Meanwhile, subscribers remain worried about potential fallout, which could result in monopolistic practices that limit consumer options.

This article was updated to include information from Paramount’s latest earnings report. 

Paramount ends Warner Bros. Discovery merger talks, continues mulling sell-off Read More »

microsoft-partners-with-openai-rival-mistral-for-ai-models,-drawing-eu-scrutiny

Microsoft partners with OpenAI-rival Mistral for AI models, drawing EU scrutiny

AI, AI Act, Biz & IT, chatgpt, chatgtp, EU AI Act, EU regulation, france, French AI models, French models, GPT-4, GPT-4-turbo, large language models, machine learning, Mistral, Mistral Large, openai / /

The European Approach —

15M euro investment comes as Microsoft hosts Mistral’s GPT-4 alternatives on Azure.

–

Velib bicycles are parked in front of the the U.S. computer and micro-computing company headquarters Microsoft on January 25, 2023 in Issy-les-Moulineaux, France.

On Monday, Microsoft announced plans to offer AI models from Mistral through its Azure cloud computing platform, which came in conjunction with a 15 million euro non-equity investment in the French firm, which is often seen as a European rival to OpenAI. Since then, the investment deal has faced scrutiny from European Union regulators.

Microsoft’s deal with Mistral, known for its large language models akin to OpenAI’s GPT-4 (which powers the subscription versions of ChatGPT), marks a notable expansion of its AI portfolio at a time when its well-known investment in California-based OpenAI has raised regulatory eyebrows. The new deal with Mistral drew particular attention from regulators because Microsoft’s investment could convert into equity (partial ownership of Mistral as a company) during Mistral’s next funding round.

The development has intensified ongoing investigations into Microsoft’s practices, particularly related to the tech giant’s dominance in the cloud computing sector. According to Reuters, EU lawmakers have voiced concerns that Mistral’s recent lobbying for looser AI regulations might have been influenced by its relationship with Microsoft. These apprehensions are compounded by the French government’s denial of prior knowledge of the deal, despite earlier lobbying for more lenient AI laws in Europe. The situation underscores the complex interplay between national interests, corporate influence, and regulatory oversight in the rapidly evolving AI landscape.

Avoiding American influence

The EU’s reaction to the Microsoft-Mistral deal reflects broader tensions over the role of Big Tech companies in shaping the future of AI and their potential to stifle competition. Calls for a thorough investigation into Microsoft and Mistral’s partnership have been echoed across the continent, according to Reuters, with some lawmakers accusing the firms of attempting to undermine European legislative efforts aimed at ensuring a fair and competitive digital market.

The controversy also touches on the broader debate about “European champions” in the tech industry. France, along with Germany and Italy, had advocated for regulatory exemptions to protect European startups. However, the Microsoft-Mistral deal has led some, like MEP Kim van Sparrentak, to question the motives behind these exemptions, suggesting they might have inadvertently favored American Big Tech interests.

“That story seems to have been a front for American-influenced Big Tech lobby,” said Sparrentak, as quoted by Reuters. Sparrentak has been a key architect of the EU’s AI Act, which has not yet been passed. “The Act almost collapsed under the guise of no rules for ‘European champions,’ and now look. European regulators have been played.”

MEP Alexandra Geese also expressed concerns over the concentration of money and power resulting from such partnerships, calling for an investigation. Max von Thun, Europe director at the Open Markets Institute, emphasized the urgency of investigating the partnership, criticizing Mistral’s reported attempts to influence the AI Act.

Also on Monday, amid the partnership news, Mistral announced Mistral Large, a new large language model (LLM) that Mistral says “ranks directly after GPT-4 based on standard benchmarks.” Mistral has previously released several open-weights AI models that have made news for their capabilities, but Mistral Large will be a closed model only available to customers through an API.

Microsoft partners with OpenAI-rival Mistral for AI models, drawing EU scrutiny Read More »

the-xiaomi-14-ultra-sports-a-six-blade-mechanical-iris-in-the-camera

The Xiaomi 14 Ultra sports a six-blade mechanical iris in the camera

Tech, Xiaomi / /

Have you considered just making the lens bigger —

Xiaomi’s top-tier smartphone is dressed up with lots of “real camera” theatrics.

–

  • The Xiaomi 14 Ultra.

    Xiaomi

  • The phone desperately wants to look like a real camera, with a faux-leather wrapping and big circular camera block.

    Xiaomi

  • The camera bump sticks out a lot.

    Xiaomi

  • The screen is curved all over, and raised above the aluminum sides.

    Xiaomi

  • Another look at the screen. All the glass is way above the aluminum sides, so don’t drop it!

    Xiaomi

  • The cooling system.

    Xiaomi

  • An interior view.

    Xiaomi

Xiaomi’s big Mobile World Congress launch is the Xiaomi 14 Ultra. This is a top-tier flagship that of course is not coming to the US but is available in Europe for a whopping 1,499 euros ($1,624).

Let’s get the specs out of the way: This has a 120 Hz, 3200×1440 OLED, a Snapdragon 8 Gen 3 SoC, 16GB of RAM, 512GB of storage, and a 5000 mAh battery. A proprietary 90 W wired “HyperCharge” will get the phone from 0–100 percent battery in 33 minutes, while a wireless 80 W version will charge the phone in 46 minutes.

Xiaomi is very proud that all four sides of the screen are curved. The whole screen kind of rises up and bubbles out from the aluminum body. Xiaomi says the glass has “deep bending around all four sides and corners, creating a seamlessly elegant curved form.” All images, videos, websites, and apps expect to display on a flat surface, so curved displays serve to distort the picture you’re looking at, and thankfully some manufacturers have started to drop the idea. Having the display be a big glass bubble also means you now have four glass corners on the front of the phone, so uh, don’t drop it!

Just like the Xiaomi 13 Ultra, the whole back design mimics a classic leather-wrapped 35 mm camera—the camera is “Leica” branded, after all. The back is “vegan leather,” aka specially treated plastic (hey, some of those old cameras used fake leather, too!), and the camera lens is a giant circle faintly evoking a normal camera lens.

  • The camera kit gives you a case and a side grip with all sorts of traditional camera buttons.

  • Putting on the grip.

    Xiaomi

  • Inside the grip.

    Xiaomi

The photography focus features the return of the “Professional Camera Kit,” which makes the phone look even more like a real camera. The kit has two parts; the first is a case that adds a mounting ring around the camera bump, so you can attach a lens cover or camera filter to the camera bump. The other half of the kit is a clip-on camera grip attachment, which adds both a 1500 mAh battery and physical camera controls, like a two-stage shutter button that can trigger auto-focus, a record button, a two-way zoom lever, and a customizable dial. Just like last year, this makes the phone look like a more serious camera, but it’s all just looks—what makes a traditional camera good is the significantly bigger camera lens, and this is still just a regular, very small smartphone camera lens.

The camera theatrics continue with the new six-blade variable aperture for the main camera. Just like a traditional camera, there is a very tiny six-blade mechanical iris in the main lens that can open and close to adjust the aperture of your photo. Last year, Xiaomi had a similar system, but it only used two blades and could only snap between the “blades open” f1.9 mode and the “closed blades” f4.0 mode. With six blades, you get a “stepless variable aperture” that lets you pick any spot in the phone’s f-stop range.

  • The Xiaomi 14 Ultra’s six-blade iris sure does look neat.

    Xiaomi

  • A side view.

    Xiaomi

  • An explode view.

    Xiaomi

This is still a tiny phone camera lens, though, so the f-stop range is very small, just f1.63 to f4.0. On a DSLR, adjusting the f-stop would change the camera’s depth of field, with a narrower aperture letting in less light in exchange for a crisp focus. A wider aperture would give brighter pictures with a smaller focal range, which you can use for blurry background bokeh effects. That’s all on a DSLR though, with a normal f-stop range of like F1.4 to F22. On a smartphone camera, especially when there is tons of software processing, f1.6 to f4 won’t change your images much. Any background blur is still a fake post-processing effect, and it’s hard to imagine a scenario where you wouldn’t just want as much light as possible for your tiny smartphone lens. Samsung tried all this before on the Galaxy S9 and S10 and then dropped the feature because it just wasn’t accomplishing much. The six-blade aperture is probably a triumph of micro-engineering, but in the real world, it’s more of a marketing bullet point.

Despite the fluff, the Xiaomi 14 Ultra is still packing serious smartphone-level camera hardware. The main sensor is a 1-inch, 50MP Sony LYT-900, probably the biggest and best smartphone camera sensor out there. Smartphone pictures are so heavily processed that the software has just as much to do with the hardware (see: every Pixel phone), but Xiaomi did get the best hardware. The other three rear cameras are all 50 MP Sony IMX858 sensors, with lenses for wide-angle, 3.2x telephoto, and 5x telephoto.

Preorders are already open, and the phone will ship on March 15.

The Xiaomi 14 Ultra sports a six-blade mechanical iris in the camera Read More »

test-flights-on-tap-for-space-perspective’s-luxury-high-altitude-balloon

Test flights on tap for Space Perspective’s luxury high-altitude balloon

balloon, Commercial space, Science, Space, space perspective / /
Space Perspective's first test capsule, <em>Excelsior</em>, has a diameter of approximately 16 feet (4.9 meters).” src=”https://cdn.arstechnica.net/wp-content/uploads/2024/02/Space_Perspective_Capsule_Front_on_Sunset_Landscape-800×533.jpg”></img><figcaption> <p><a data-height=Enlarge / Space Perspective’s first test capsule, Excelsior, has a diameter of approximately 16 feet (4.9 meters).

Space Perspective could begin test flights of its privately owned capsule suspended under a high-altitude balloon within the next couple of months, the company’s co-founder told Ars this week.

Florida-based Space Perspective released photos of its first completed test capsule Tuesday. The company will use this pressurized capsule, called Excelsior, for a series of test flights this year over the Atlantic Ocean just off the coast of Cape Canaveral. Taber MacCallum, Space Perspective’s co-founder and chief technology officer, said employees have also finished fabricating the giant balloon that will lift the test capsule into the upper atmosphere for the first test flight.

The final piece of the puzzle is a ship, named Marine Spaceport Voyager, that Space Perspective will use to launch the balloon and capsule. This vessel is due to depart an outfitting facility in Louisiana in the next few weeks for a trip to Port Canaveral, Florida, where Space Perspective will load aboard the capsule and balloon. Then, perhaps in four to six weeks, ground teams will be ready for the system’s first test flight, according to MacCallum.

But this is a test program, and there could be delays, MacCallum said. In the meantime, Space Perspective will start building a second capsule for human test flights.

“We’ll do a series of unmanned tests with this capsule,” he said. “In theory, we could fly people in this capsule. It’s designed that way, and it has all of the systems set up for human flight. But our planning assumes that trailing on what we learn from this capsule, we build another capsule that will be our first human flight capsule. And this will remain an unmanned test capsule.”

Soaring to the edge of “space”

These tests are a prelude to Space Perspective’s plans for regular commercial flights carrying paying customers to 100,000 feet (about 30 kilometers), roughly three times higher than the cruising altitude of a typical commercial airliner. From 100,000 feet, Space Perspective’s clients will see panoramic views of the ground and ocean far below, and the sky will be black, with the capsule flying above 99 percent of Earth’s atmosphere.

Founded in 2019, Space Perspective says on its website it is “driven by a desire to share the transformative power of space travel with as many people as possible.” In reality, the company will give customers an experience similar to spaceflight, with a few significant differences.

Essentially, passengers on Space Perspective’s high-altitude balloon will get a view the company says is similar to what a passenger might see on a suborbital spacecraft from Blue Origin or Virgin Galactic. But Space Perspective’s vehicle won’t subject customers to any high G-forces or the risks of rocket flight. The balloon passengers also won’t float in microgravity. And it will max out at 30 kilometers, well short of the 80-kilometer boundary of space recognized by the US government or the 100-kilometer Kármán line.

Still, the view from 30 kilometers must be tremendous. “You’ll see essentially all of Florida,” MacCallum said. “We’re also looking at flying sort of across the southern tip of Florida, so you’d see Cuba, the Bahamas, essentially all of Florida. So amazing views.”

Test flights on tap for Space Perspective’s luxury high-altitude balloon Read More »

imessage-gets-a-major-makeover-that-puts-it-on-equal-footing-with-signal

iMessage gets a major makeover that puts it on equal footing with Signal

Apple, Biz & IT, iMessage, messaging apps, MESSENGER, quantum computing, Security, signal / /
Stylized illustration of key.

iMessage is getting a major makeover that makes it among the two messaging apps most prepared to withstand the coming advent of quantum computing, largely at parity with Signal or arguably incrementally more hardened.

On Wednesday, Apple said messages sent through iMessage will now be protected by two forms of end-to-end encryption (E2EE), whereas before, it had only one. The encryption being added, known as PQ3, is an implementation of a new algorithm called Kyber that, unlike the algorithms iMessage has used until now, can’t be broken with quantum computing. Apple isn’t replacing the older quantum-vulnerable algorithm with PQ3—it’s augmenting it. That means, for the encryption to be broken, an attacker will have to crack both.

Making E2EE future safe

The iMessage changes come five months after the Signal Foundation, maker of the Signal Protocol that encrypts messages sent by more than a billion people, updated the open standard so that it, too, is ready for post-quantum computing (PQC). Just like Apple, Signal added Kyber to X3DH, the algorithm it was using previously. Together, they’re known as PQXDH.

iMessage and Signal provide end-to-end encryption, a protection that makes it impossible for anyone other than the sender and recipient of a message to read it in decrypted form. iMessage began offering E2EE with its rollout in 2011. Signal became available in 2014.

One of the biggest looming threats to many forms of encryption is quantum computing. The strength of the algorithms used in virtually all messaging apps relies on mathematical problems that are easy to solve in one direction and extremely hard to solve in the other. Unlike a traditional computer, a quantum computer with sufficient resources can solve these problems in considerably less time.

No one knows how soon that day will come. One common estimate is that a quantum computer with 20 million qubits (a basic unit of measurement) will be able to crack a single 2,048-bit RSA key in about eight hours. The biggest known quantum computer to date has 433 qubits.

Whenever that future arrives, cryptography engineers know it’s inevitable. They also know that it’s likely some adversaries will collect and stockpile as much encrypted data now and decrypt it once quantum advances allow for it. The moves by both Apple and Signal aim to defend against that eventuality using Kyber, one of several PQC algorithms currently endorsed by the National Institute of Standards and Technology. Since Kyber is still relatively new, both iMessage and Signal will continue using the more tested algorithms for the time being.

iMessage gets a major makeover that puts it on equal footing with Signal Read More »

unvaccinated-florida-kids-exposed-to-measles-can-skip-quarantine,-officials-say

Unvaccinated Florida kids exposed to measles can skip quarantine, officials say

anti-vaccine, Florida, health, Ladapo, measles, MMR, Science, vaccines / /

Bad idea —

On Tuesday, nearly 20 percent of the school’s 1,067 students were reportedly absent.

–

Florida Surgeon General Dr. Joseph Ladapo speaks during a press conference at Neo City Academy in Kissimmee, Florida.

Enlarge / Florida Surgeon General Dr. Joseph Ladapo speaks during a press conference at Neo City Academy in Kissimmee, Florida.

Paul Hennessy/SOPA Images/LightRocket via Getty Images

A sixth student at Florida’s Manatee Bay Elementary School outside of Fort Lauderdale has a confirmed case of measles, health officials announced late Tuesday. However, health officials are not telling unvaccinated students who were potentially exposed to quarantine.

The school has a low vaccination rate, suggesting that the extremely contagious virus could spark a yet larger outbreak. But in a letter sent to parents late Tuesday, Florida Surgeon General Joseph Ladapo—known for spreading anti-vaccine rhetoric and vaccine misinformation—indicated that unvaccinated students can skip the normally recommended quarantine period.

The letter, signed by Ladapo, noted that people with measles can be contagious from four days before the rash develops through four days after the rash appears. And while symptoms often develop between 8 to 14 days after exposure, the disease can take 21 days to appear. As such, the normal quarantine period for exposed and unvaccinated people, who are highly susceptible to measles, is 21 days.

“Because of the high likelihood of infection, it is normally recommended that children stay home until the end of the infectious period, which is currently March 7, 2024,” Ladapo’s letter states, adding that the date could change as the situation develops. “However, due to the high immunity rate in the community, as well as the burden on families and educational costs of healthy children missing school, [the health department] is deferring to parents or guardians to make decisions about school attendance.”

Local media outlets reported that, on Tuesday, more than 200 of the school’s 1,067 students were absent.

The measles cluster began Friday when a third grader, who had not recently traveled, was diagnosed with the vaccine-preventable illness. Over the weekend, three additional cases were identified, leading the local health department to release a health advisory. Two additional cases were identified this week. It’s unclear if all six children are unvaccinated.

According to a county vaccine study, only 89.31 percent of the school’s students were vaccinated in the 2023/2024 school year, suggesting that around 114 students are susceptible due to their vaccination status.

The measles virus spreads easily through respiratory transmission and can linger in air space for up to two hours after an infected person has been in an area. Among people susceptible to the virus—those who are unvaccinated or have compromised immune systems—up to 90 percent will become infected upon exposure. People who are fully vaccinated, meanwhile, are considered protected. Two doses of the Measles, Mumps, and Rubella (MMR) vaccine are 97 percent effective at preventing the disease.

Measles symptoms include high fever, runny nose, red and watery eyes, and a cough, as well as a telltale rash that develops after initial symptoms. About 1 in 5 unvaccinated people with measles are hospitalized, according to the Centers for Disease Control and Prevention, while 1 in 20 infected children develop pneumonia and up to 3 in 1,000 children die of the infection.

Unvaccinated Florida kids exposed to measles can skip quarantine, officials say Read More »

ala.-hospital-halts-ivf-after-state’s-high-court-ruled-embryos-are-“children”

Ala. hospital halts IVF after state’s high court ruled embryos are “children”

Alabama, assisted reproductive technology, children, embryo, fertility, frozen embryo, health, IVF, Science / /

Consequences —

Anger and uncertainty spread in wake of Friday’s ruling by the state’s Supreme Court.

–

Nitrogen tanks holding tens of thousands of frozen embryos and eggs sit in the embryology lab at New Hope Fertility Center in New York City on December 20, 2017.

Enlarge / Nitrogen tanks holding tens of thousands of frozen embryos and eggs sit in the embryology lab at New Hope Fertility Center in New York City on December 20, 2017.

The University of Alabama at Birmingham (UAB) health system is halting in vitro fertilization treatment in the wake of a ruling by the state’s Supreme Court on Friday that deemed frozen embryos to be “children,” The ruling opens up anyone who destroys embryos to liability in a wrongful death lawsuit, according to multiple media reports.

The announcement—the first facility to report halting IVF services—is the much-feared outcome of Friday’s ruling, which was widely decried by reproductive health advocates.

“We are saddened that this will impact our patients’ attempt to have a baby through IVF, but we must evaluate the potential that our patients and our physicians could be prosecuted criminally or face punitive damages for following the standard of care for IVF treatments,” UAB said a statement to media. The statement noted that egg retrieval would continue but that egg fertilization and embryo development are now paused.

Ars has reached out to UAB for further comment and will update this story with any additional information.

Production of extra embryos is a normal part of IVF treatment for several reasons. Most notably, not all embryos will be viable, implant in a uterus, and lead to a live birth. So, creating as many embryos as possible is a common strategy to ensure that people who wish to conceive have the best chance of doing so. Embryos can also be screened for genetic conditions, allowing only the healthiest to be implanted, while those with debilitating or fatal abnormalities can be discarded.

In 2021, approximately 238,126 patients in the US had 413,776 rounds of IVF, resulting in 97,128 live-born infants, according to the Centers for Disease Control and Prevention. The percentage of egg retrievals that lead to a live birth ranges from 54 percent to 9 percent, depending on a patient’s age.

But, the standard practices of IVF used for hundreds of thousands of patients each year were thrown into question and upheaval Friday when the Alabama Supreme Court ruled that all embryos, even those outside of a uterus or frozen in storage, are “children” under state law. Anyone who destroys them is liable under the state’s Wrongful Death of a Minor Act, the court concluded. Chief Justice Tom Parker cited his religious beliefs and quoted the Bible to support the stance.

Reproductive health experts quickly speculated that the ruling would roll back IVF treatment in the state. Some facilities, such as the case of UAB, may halt treatment entirely. While others may choose to fertilize eggs conservatively, adding cost and time to the already arduous process of IVF. Genetic screening of embryos from couples who carry debilitating or fatal mutations may no longer be possible. Doctors could be sued if an embryonic ball of a few cells does not survive the treatment. Insurance rates for fertility clinics could skyrocket. Patients, meanwhile, may have to keep unneeded embryos frozen indefinitely.

On Tuesday, The Washington Post reported that the ruling had created a wave of anger, shock, and confusion across the state. Patients are considering moving frozen embryos—some leftover from IVF rounds, some purposely banked for future use—to storage facilities out of the state. Lawyers cautioned that divorce settlements that stipulate frozen embryos must be destroyed may now be void.

But the fear and confusion don’t end there. Health advocates worry more states will follow Alabama’s lead. And, if small clumps of cells gain personhood rights in more states, liability could spread to contraceptive use and people who suffer a miscarriage.

Ala. hospital halts IVF after state’s high court ruled embryos are “children” Read More »

blue-origin-has-emerged-as-the-likely-buyer-for-united-launch-alliance

Blue Origin has emerged as the likely buyer for United Launch Alliance

blue origin, Science, Space, ula / /

Blue-LA —

Pairing of two launch companies could provide more robust competition to SpaceX.

–

The first Vulcan rocket fires off its launch pad in Florida in January 2024.

Enlarge / The first Vulcan rocket fires off its launch pad in Florida in January 2024.

United Launch Alliance

The rocket company owned by Amazon founder Jeff Bezos, Blue Origin, has emerged as the sole finalist to buy United Launch Alliance.

The sale is not official, and nothing has been formally announced. The co-owners of United Launch Alliance (ULA), Lockheed Martin and Boeing, have yet to comment publicly on the sale of the company, which, until the rise of SpaceX, was the sole major launch provider in the United States. They declined again on Wednesday.

“Consistent with our corporate practice, Boeing doesn’t comment on potential market rumors or speculation,” a Boeing spokesperson said.

Blue Origin did not return a request for comment.

However, two sources told Ars that Blue Origin is nearing the purchase of ULA. The sources said they have not personally seen any signed agreements, but they expect the sale to be announced within a month or two.

In the 11 months since Ars first reported that ULA was up for sale, the company’s potential buyer has become a topic of widespread speculation and interest. In November, Ars reported that Blue Origin was one of three potential buyers. In December, the Wall Street Journal confirmed that the competition was narrowing and said Blue Origin and a large private equity firm, Cerberus, were the two most likely bidders.

Bezos stock sales

Some recent related activity suggests the sale is imminent. A handful of senior officials at ULA are seeking new jobs. Additionally, Bezos recently sold $2.4 billion in Amazon stock and, in securities filings, disclosed that he could sell an additional $8 billion to $9 billion in stock over the next 12 months. Although there are no confirmed values, there has been speculation in the launch industry that ULA may be sold for $2 billion to $3 billion.

ULA was created in 2006 through a merger of Boeing’s Delta rocket program and Lockheed Martin’s Atlas launcher family. Since then, ULA has been a profitable enterprise for both aerospace giants, thanks to military launch contracts and (until recently) large annual subsidies from the US Department of Defense to maintain “launch readiness” for national security missions.

During the last decade, however, ULA’s launch dominance has first been challenged and then supplanted by the rise of SpaceX and its less expensive and highly reliable Falcon 9 rocket. Tory Bruno, who became ULA’s chief executive in 2014, has slashed employee headcount and taken other steps to control costs, such as closing infrequently used launch pads.

One of the key questions about the acquisition is what will happen to Bruno, who has demonstrated the ability to run a launch company with an excellent record of success, manage the development of a large new launch vehicle—the Vulcan rocket—and is willing to compete with SpaceX. It is unclear what role he would have in an acquisition by Blue Origin. Sources indicate that Bruno has a good relationship with Bezos.

Will the merger work?

There is considerable overlap in the launch businesses of ULA and Blue Origin. Vulcan and Blue Origin’s own large rocket, New Glenn, will both compete for government launch contracts, and both use the BE-4 rocket engines developed by Blue Origin. However, some synergies could make a combined Blue Origin-ULA a more formidable launch competitor to SpaceX.

ULA has operational launch pads at Cape Canaveral Space Force Station in Florida and Vandenberg Space Force Base in California. It has large integration facilities at both locations. Additionally, it has an experienced launch team with a long track record of success, which could be useful to Blue Origin as it seeks to launch the New Glenn rocket later this year.

Finally, ULA has some expertise in the storage of cryogenic fuels in space. For a time, before its co-owners shut down the program, ULA was developing an innovative upper stage known as ACES (Advanced Cryogenic Evolved Stage). This upper stage was intended to be reusable and powered by liquid oxygen and liquid hydrogen. These are the kinds of technologies that Blue Origin will need as it develops a lunar lander and tug spacecraft that uses these same propellants and requires them to be stored in space for long periods of time.

Blue Origin has emerged as the likely buyer for United Launch Alliance Read More »