99% of adults over 40 have shoulder "abnormalities" on an MRI, study finds

99% of adults over 40 have shoulder "abnormalities" on an MRI, study finds

fivenewscrypto    février 18, 2026   

Up to a third of people worldwide have shoulder pain; it's one of the most common musculoskeletal complaints. But medical imaging might not reveal the problem—in fact, it could even cloud it.

In a study published in JAMA Internal Medicine this week, 99 percent of adults over 40 were found to have at least one abnormality in a rotator cuff on magnetic resonance imaging (MRI). The rotator cuff is the group of muscles and tendons in a shoulder joint that keeps the upper arm bone securely in the shoulder socket—and is often blamed for pain and other symptoms. The trouble is, the vast majority of people in the study had no shoulder problems.

The finding calls into question the growing use of MRIs to try to diagnose shoulder pain—and, in turn, the growing problem of overtreatment of rotator cuff (RC) abnormalities, which includes partial- and full-thickness tears as well as signs of tendinopathy (tendon swelling and thickening).

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ByteDance backpedals after Seedance 2.0 turned Hollywood icons into AI “clip art”

ByteDance backpedals after Seedance 2.0 turned Hollywood icons into AI “clip art”

fivenewscrypto    février 18, 2026   

ByteDance says that it's rushing to add safeguards to block Seedance 2.0 from generating iconic characters and deepfaking celebrities, after substantial Hollywood backlash after launching the latest version of its AI video tool.

The changes come after Disney and Paramount Skydance sent cease-and-desist letters to ByteDance urging the Chinese company to promptly end the allegedly vast and blatant infringement.

Studios claimed the infringement was widescale and immediate, with Seedance 2.0 users across social media sharing AI videos featuring copyrighted characters like Spider-Man, Darth Vader, and SpongeBob Square Pants. In its letter, Disney fumed that Seedance was "hijacking" its characters, accusing ByteDance of treating Disney characters like they were "free public domain clip art," Axios reported.

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A fluid can store solar energy and then release it as heat months later

A fluid can store solar energy and then release it as heat months later

fivenewscrypto    février 17, 2026   

Heating accounts for nearly half of the global energy demand, and two-thirds of that is met by burning fossil fuels like natural gas, oil, and coal. Solar energy is a possible alternative, but while we have become reasonably good at storing solar electricity in lithium-ion batteries, we’re not nearly as good at storing heat.

To store heat for days, weeks, or months, you need to trap the energy in the bonds of a molecule that can later release heat on demand. The approach to this particular chemistry problem is called molecular solar thermal (MOST) energy storage. While it has been the next big thing for decades, it never really took off.

In a recent Science paper, a team of researchers from the University of California, Santa Barbara, and UCLA demonstrate a breakthrough that might finally make MOST energy storage effective.

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Michigan antitrust lawsuit says oil companies hobbled EVs and renewables

Michigan antitrust lawsuit says oil companies hobbled EVs and renewables

fivenewscrypto    février 17, 2026   

Michigan is taking on major oil and gas companies in court, joining nearly a dozen other states that have brought climate-related lawsuits against ExxonMobil and its industry peers. But Michigan’s approach is different: accusing Big Oil not of deceiving consumers or misrepresenting climate change risks, but of driving up energy costs by colluding to suppress competition from cleaner and cheaper technologies like solar power and electric vehicles.

The strategy is risky and might run into challenges, but it could potentially be a game changer if the state can overcome initial dismissal attempts by the industry defendants, legal experts say.

Michigan Attorney General Dana Nessel filed the lawsuit last month in federal District Court against BP, Chevron, ExxonMobil, Shell and the American Petroleum Institute. The suit, brought under federal and state antitrust laws, alleges a conspiracy to delay the transition to renewable energy and EVs and maintain market dominance of fossil fuels.

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Sideways on the ice, in a supercar: Stability control is getting very good

Sideways on the ice, in a supercar: Stability control is getting very good

fivenewscrypto    février 17, 2026   

McLaren provided flights from Washington, DC, to Ivalo, Finland, and accommodation so Ars could drive its car on a frozen lake. Ars does not accept paid editorial content.

SAARISELKÄ, FINLAND—If you're expecting it, the feeling in the pit of your stomach when the rear of your car breaks traction and begins to slide is rather pleasant. It's the same exhilaration we get from roller coasters, but when you're in the driver's seat, you're in charge of the ride.

When you're not expecting it, though, there's anxiety instead of excitement and, should the slide end with a crunch, a lot more negative emotions, too.

Thankfully, fewer and fewer drivers will have to experience that kind of scare thanks to the proliferation and sophistication of modern electronic stability and traction control systems. For more than 30 years, these electronic safety nets have grown in capability and became mandatory in the early 2010s, saving countless crashes in the process.

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Space Station returns to a full crew complement after a month

Space Station returns to a full crew complement after a month

fivenewscrypto    février 17, 2026   

A Crew Dragon spacecraft docked with the International Space Station on Valentine's Day, and astronauts popped open the hatches at 5:14 pm ET (22:14 UTC) on Saturday evening.

The arrival of four new astronauts as part of the Crew 12 mission—Jessica Meir and Jack Hathaway of NASA, Sophie Adenot of the European Space Agency, and Andrey Fedyaev of Roscosmos—brought the total number of crew on board the space station to seven, giving the US space agency a full complement in orbit.

The number of astronauts living on board the station fluctuates over time, depending on crew rotations and private astronauts making shorter stays, but since Crew Dragon began flying regularly at the end of 2020 NASA has sought to keep at least four "USOS" astronauts on board at all time. This stands for "US Orbital Segment," and means astronauts from the United States, Canada, Europe, and Japan who are trained to operate the areas of the station maintained by NASA and its partner astronauts.

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Editor’s Note: Retraction of article containing fabricated quotations

Editor’s Note: Retraction of article containing fabricated quotations

fivenewscrypto    février 17, 2026   

On Friday afternoon, Ars Technica published an article containing fabricated quotations generated by an AI tool and attributed to a source who did not say them. That is a serious failure of our standards. Direct quotations must always reflect what a source actually said.

That this happened at Ars is especially distressing. We have covered the risks of overreliance on AI tools for years, and our written policy reflects those concerns. In this case, fabricated quotations were published in a manner inconsistent with that policy. We have reviewed recent work and have not identified additional issues. At this time, this appears to be an isolated incident.

Ars Technica does not permit the publication of AI-generated material unless it is clearly labeled and presented for demonstration purposes. That rule is not optional, and it was not followed here.

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