Tech News
Research roundup: 7 stories we almost missed
Science - Posted On:2025-05-31 18:30:00 Source: arstechnica
It's a regrettable reality that there is never time to cover all the interesting scientific stories we come across each month. In the past, we've featured year-end roundups of cool science stories we (almost) missed. This year, we're experimenting with a monthly collection. May's list includes a nifty experiment to make a predicted effect of special relativity visible; a ping-pong playing robot that can return hits with 88 percent accuracy; and the discovery of the rare genetic mutation that makes orange cats orange, among other highlights.
Perhaps the most well-known feature of Albert Einstein's special theory of relativity is time dilation and length contraction. In 1959, two physicists predicted another feature of relativistic motion: an object moving near the speed of light should also appear to be rotated. It's not been possible to demonstrate this experimentally, however—until now. Physicists at the Vienna University of Technology figured out how to reproduce this rotational effect in the lab using laser pulses and precision cameras, according to a paper published in the journal Communications Physics.
Five-Year Study Suggests Chimpanzees Strike Stones Against Trees As Form of Communication
science - Posted On:2025-05-31 06:15:00 Source: slashdot
A five-year study by Wageningen University and the German Primate Research Center found that wild chimpanzees in Guinea-Bissau repeatedly strike stones against trees, presumably as a form of communication. Phys.Org reports: Over the course of a five-year field study, the research team collected video footage at five distinct locations within a nature reserve in Guinea-Bissau. This was made possible through the use of camera traps and with essential support from local field guides. In specific areas, a striking behavioral pattern was observed: adult male chimpanzees repeatedly struck stones against tree trunks, resulting in characteristic piles of stones at the base of these trees. [...] The observations point to cultural transmission. Young chimpanzees adopt the behavior from older group members, indicating that it is learned socially rather than genetically inherited. Marc Naguib, Professor of Behavioral Ecology, underscores the broader significance of the discovery: "It illustrates that culture is not unique to humans and that such behaviors need to be considered also in nature conservation." The study is published in the journal Biology Letters. Read more of this story at Slashdot.
Testing a robot that could drill into Europa and Enceladus
Science - Posted On:2025-05-30 16:00:00 Source: arstechnica
Europa and Enceladus are two ocean moons that scientists have concluded have liquid water oceans underneath their outer icy shells. The Europa Clipper mission should reach Europa around April of 2030. If it collects data hinting at the moon’s potential habitability, robotic lander missions could be the only way to confirm if there’s really life in there or not.
To make these lander missions happen, NASA’s Jet Propulsion Laboratory team has been working on a robot that could handle the search for life and already tested it on the Matanuska Glacier in Alaska. “At this point this is a pretty mature concept,” says Kevin Hand, a planetary scientist at JPL who led this effort.
There are only a few things we know for sure about conditions on the surface of Europa, and nearly all of them don’t bode well for lander missions. First, Europa is exposed to very harsh radiation, which is a problem for electronics. The window of visibility—when a potential robotic lander could contact Earth—lasts less than half of the 85 hours it takes for the moon to complete its day-night cycle due to the Europa-Jupiter orbit. So, for more than half the mission, the robot would need to fend for itself, with no human ground teams to get it out of trouble. The lander would also need to run on non-rechargeable batteries, because the vast distance to the Sun would make solar panels prohibitively massive.
Why incels take the “Blackpill”—and why we should care
Science - Posted On:2025-05-30 16:00:00 Source: arstechnica
The online incel ("involuntary celibate") subculture is mostly known for its extreme rhetoric, primarily against women, sometimes erupting into violence. But a growing number of self-identified incels are using their ideology as an excuse for not working or studying. This could constitute a kind of coping mechanism to make sense of their failures—not just in romantic relationships but also in education and employment, according to a paper published in the journal Gender, Work, & Organization.
Contrary to how it's often portrayed, the "manosphere," as it is often called, is not a monolith. Those who embrace the "Redpill" ideology, for example, might insist that women control the "sexual marketplace" and are only interested in ultramasculine "Chads." They champion self-improvement as a means to make themselves more masculine and successful, and hence (they believe) more attractive to women—or at least better able to manipulate women.
By contrast, the "Blackpilled" incel contingent is generally more nihilistic. These individuals reject the Redpill notion of alpha-male masculinity and the accompanying focus on self-improvement. They believe that dating and social success are entirely determined by one's looks and/or genetics. Since there is nothing they can do to improve their chances with women or their lot in life, why even bother?
NASA robot for drilling on icy moons tested on Alaskan glacier
Science - Posted On:2025-05-30 14:30:00 Source: arstechnica
Europa and Enceladus are two ocean moons that scientists have concluded have liquid water oceans underneath their outer icy shells. The Europa Clipper mission should reach Europa around April of 2030. If it collects data hinting at the moon’s potential habitability, robotic lander missions could be the only way to confirm if there’s really life in there or not.
To make these lander missions happen, NASA’s Jet Propulsion Laboratory team has been working on a robot that could handle the search for life and already tested it on the Matanuska Glacier in Alaska. “At this point this is a pretty mature concept,” says Kevin Hand, a planetary scientist at JPL who led this effort.
There are only a few things we know for sure about conditions on the surface of Europa, and nearly all of them don’t bode well for lander missions. First, Europa is exposed to very harsh radiation, which is a problem for electronics. The window of visibility—when a potential robotic lander could contact Earth—lasts less than half of the 85 hours it takes for the moon to complete its day-night cycle due to the Europa-Jupiter orbit. So, for more than half the mission, the robot would need to fend for itself, with no human ground teams to get it out of trouble. The lander would also need to run on non-rechargeable batteries, because the vast distance to the Sun would make solar panels prohibitively massive.
Blue Origin boss: Government should forget launch and focus on “exotic” missions
Science - Posted On:2025-05-30 08:30:01 Source: arstechnica
Eighteen months after leaving his job as a vice president at Amazon to take over as Blue Origin's chief executive, Dave Limp has some thoughts on how commercial companies and government agencies like NASA should explore the Solar System together.
Limp had no background in the space industry before taking the helm of Jeff Bezos' space company in December 2023. He started his career as a computer scientist at Apple, took a stint at a venture capital firm, and joined Amazon in 2010, where he managed development of consumer devices like Alexa, Kindle, and the Fire TV.
"I had no thoughts of ever running a space company," Limp said Thursday at a space conference in Washington, DC. "I've done consumer electronics my whole life. Started at Apple and did a bunch of other things, and so when I decided to retire from Amazon, I was looking for something that I could give back a little bit, be a little bit more philanthropic in the sort of second half of my career. I didn't want to stop working, just wanted to do something different. And about that same time, Jeff was looking for a CEO."
Scientists Have Clear Evidence of Martian Atmosphere 'Sputtering'
science - Posted On:2025-05-30 03:15:01 Source: slashdot
For the first time, scientists have directly observed atmospheric sputtering in action on Mars -- an erosion process driven by solar wind ions that may have played a major role in the planet's atmospheric and water loss. ScienceAlert reports: The only spacecraft with the equipment and orbital configuration to make these observations is NASA's MAVEN. The researchers carefully pored over the data collected by the spacecraft since it arrived in Mars orbit in September 2014, looking to find simultaneous observations of the solar electric field and an upper atmosphere abundance of argon -- one of the sputtered particles, used as a tracer for the phenomenon. They found that, above an altitude of 350 kilometers (217 miles), argon densities vary depending on the orientation of the solar wind electric field, compared to argon densities at lower altitudes that remain consistent. The results showed that lighter isotopes of argon vary, leaving behind an excess of heavy argon -- a discrepancy that is best explained by active sputtering. This is supported by observations of a solar storm, the outflows of which arrived at Mars in January 2016. During this time, the evidence of sputtering became significantly more pronounced. Not only does this support the team's finding that argon density variations at high Martian altitudes are the result of sputtering, it demonstrates what conditions may have been like billions of years ago, when the Sun was younger and rowdier, undergoing more frequent storm activity. The findings have been published in the journal Science Advances. Read more of this story at Slashdot.
'E-Tattoo' Could Track Mental Workload For People In High-Stake Jobs, Study Says
science - Posted On:2025-05-29 23:45:00 Source: slashdot
An anonymous reader quotes a report from The Guardian: Whether it is doing sums or working out what to text your new date, some tasks produce a furrowed brow. Now scientists say they have come up with a device to monitor such effort: an electronic tattoo, stuck to the forehead. The researchers say the device could prove valuable among pilots, healthcare workers and other professions where managing mental workload is crucial to preventing catastrophes. "For this kind of high-demand and high-stake scenario, eventually we hope to have this real-time mental workload decoder that can give people some warning and alert so that they can self-adjust, or they can ask AI or a co-worker to offload some of their work," said Dr Nanshu Lu, an author of the research from the University of Texas at Austin, adding the device may not only help workers avoid serious mistakes but also protect their health. Writing in the journal Device, Lu and colleagues describe how using questionnaires to investigate mental workload is problematic, not least as people are poor at objectively judging cognitive effort and they are usually conducted after a task. Meanwhile, existing electroencephalography (EEG) and electrooculography (EOG) devices, that can be used to assess mental workload by measuring brain waves and eye movements respectively, are wired, bulky and prone to erroneous measurements arising from movements. By contrast, the "e-tattoo" is a lightweight, flexible, wireless device. The black, wiggly path of the e-tattoo is composed of a graphite-based conductive material, and is attached to the forehead using conductive adhesive film. Four square EEG electrodes, positioned on the forehead, each detect a different region of brain activity -- with a reference electrode behind the ear -- while rectangular EOG electrodes, placed vertically and horizontally around the eyes, provide data about eye movements. Each of the stretchable electrodes is coated in an additional conductive material. The e-tattoo, which is bespoke and disposable, is connected to a reusable flexible printed circuit using conductive tape, while a lightweight battery can be clipped to the device. The device is expected to cost less than $200 and be accompanied with an app to alert the user if their mental workload is too high. Read more of this story at Slashdot.
Enigmatic hominin species studied using 2 million-year-old proteins
Science - Posted On:2025-05-29 15:30:00 Source: arstechnica
The ability to study ancient DNA has revolutionized our ability to understand our own species' past. It has clarified our relationship with Neanderthals and revealed the existence of Denisovans. But even in the most favorable environments, DNA degrades over time, setting a limit on how far back we can hope to resolve questions about our ancestors. And most of the species we've had trouble understanding lived in Africa, where the conditions are far less favorable for DNA's survival.
But a large international team has now found another way to get some information about the genetics out of far older remains. They've extracted fragments of enamel proteins from the teeth of fossils of the species Paranthropus robustus and used them to test whether the remains truly belonged to one species, despite dramatic differences in size. Because one of the proteins is male-specific, they also found the size of the individual wasn't necessarily related to its sex.
Remains that have been classified as Paranthropus show up in the fossil record nearly 3 million years ago and persist for roughly a million years. That means it overlapped both with australopithecines and early members of the Homo genus. Four different species have been assigned to this genus, but the situation is complicated. It shares a lot of similarities with some species of Australopithecus, raising the possibility of interbreeding. There's also a lot of variation within remains identified as Paranthropus, notably in the size of individuals. Some have suggested that this might be due to male/female differences in this species (termed "sexual dimorphism"), but that has been difficult to test.
Your next gaming dice could be shaped like a dragon or armadillo
Science - Posted On:2025-05-29 15:30:00 Source: arstechnica
Most people are familiar with conventional cubical six-sided dice, but there are also polyhedral versions like the 20-sided dice used in ancient Rome and to play Dungeons and Dragons. Researchers have figured out how to design dice with even more exotic shapes, like a kitten, a dragon, or an armadillo. And they are "fair" dice: Experiments with 3D-printed versions produced results that closely matched predicted random outcomes, according to a forthcoming paper currently in press at the journal ACM Transactions on Graphics.
Dice are examples of so-called "rigid bodies," broadly defined as shapes that move as one solid piece, with no need for bending or twisting. Such shapes "are of scientific interest because they model so many of the phenomena we encounter in our daily lives: anything from the way your dishes roll around on the floor when you drop them, to how the gears in your watch push on each other, to how a satellite tumbles around under the pull of gravity," co-author Keenan Crane of Carnegie-Mellon University told Ars. "So there's an intense focus on developing computational methods for understanding and predicting how rigid bodies are going to behave."
Crane and his co-authors—including lead author and CMU graduate student Hossein Baktash, as well as co-authors from NVIDIA Research and Adobe Research—wanted to explore where and how a rigid body will land when tossed. They chose dice as the best (and most fun) context in which to explore that question.
Researchers study extinct hominins using enamel proteins from their teeth
Science - Posted On:2025-05-29 14:30:00 Source: arstechnica
The ability to study ancient DNA has revolutionized our ability to understand our own species' past. It has clarified our relationship with Neanderthals and revealed the existence of Denisovans. But even in the most favorable environments, DNA degrades over time, setting a limit on how far back we can hope to resolve questions about our ancestors. And most of the species we've had trouble understanding lived in Africa, where the conditions are far less favorable for DNA's survival.
But a large international team has now found another way to get some information about the genetics out of far older remains. They've extracted fragments of enamel proteins from the teeth of fossils of the species Paranthropus robustus and used them to test whether the remains truly belonged to one species, despite dramatic differences in size. Because one of the proteins is male-specific, they also found the size of the individual wasn't necessarily related to its sex.
Remains that have been classified as Paranthropus show up in the fossil record nearly 3 million years ago and persist for roughly a million years. That means it overlapped both with australopithecines and early members of the Homo genus. Four different species have been assigned to this genus, but the situation is complicated. It shares a lot of similarities with some species of Australopithecus, raising the possibility of interbreeding. There's also a lot of variation within remains identified as Paranthropus, notably in the size of individuals. Some have suggested that this might be due to male/female differences in this species (termed "sexual dimorphism"), but that has been difficult to test.
Astronomers Discover Mystery Cosmic Body Bursting With X-Rays
science - Posted On:2025-05-29 03:15:00 Source: slashdot
Astronomers have discovered a mysterious cosmic object, ASKAP J1832-0911, that emits both radio waves and X-rays in precise 44-minute cycles, making it unlike anything observed before. Space.com reports: This is the first time an object like this, a so-called "long-period transient" or "LPT," has been seen in high-energy X-ray light as well as low-energy radio wave light. The team behind this discovery hopes the finding could help reveal what these flashing objects actually are and how they launch their mystery signals. However, not only is there no explanation for how the signals from LPTs are generated yet, but astronomers also don't know why these signals "switch on" and "switch off" at long, regular and unusual intervals. "This object is unlike anything we have seen before," team leader and Curtin University researcher Zieng (Andy) Wang said in a statement. [...] The team believes the true nature of ASKAP J1832-0911 is a dead star, they just don't quite know what form that star takes. A highly magnetic neutron star, or "magnetar," is one option, and a a white dwarf -- the kind of stellar remnant the sun will leave behind when it dies in over 5 billion years -- is another. "ASKAP J1831- 0911 could be a magnetar, the core of a dead star with powerful magnetic fields, or it could be a pair of stars in a binary system where one of the two is a highly magnetized white dwarf, a low-mass star at the end of its evolution," Wang said. "However, even those theories do not fully explain what we are observing. "This discovery could indicate a new type of physics or new models of stellar evolution." The research has been published in the journal Nature. Read more of this story at Slashdot.
China extends its reach into the Solar System with launch of asteroid mission
Science - Posted On:2025-05-28 22:15:01 Source: arstechnica
A Chinese spacecraft built to collect specimens from an unexplored asteroid and return them to Earth successfully launched Wednesday from a military-run spaceport in the country's mountainous interior.
Liftoff aboard a Long March 3B rocket at 1:31 pm EDT (17:31 UTC) from the Xichang launch base kicked off the second mission in a series of Chinese probes to explore the Solar System. This mission, designated Tianwen-2, follows the Tianwen-1 mission, which became the first Chinese spacecraft to land on Mars in 2021.
Chinese officials confirmed the 2.1-metric ton Tianwen-2 spacecraft unfurled its fan-shaped solar arrays shortly after launch, marking an auspicious start to a decade-long tour of the Solar System.
We now have a good idea about the makeup of Uranus’ atmosphere
Science - Posted On:2025-05-28 11:15:00 Source: arstechnica
Uranus, the seventh planet in the Solar System, located between Saturn and Neptune, has long been a mystery. But by analyzing observations made by NASA’s Hubble Space Telescope over a 20-year period, a research team from the University of Arizona and other institutions has provided new insights into the composition and dynamics of the planet’s atmosphere.
Information about Uranus is limited. What we know is that the planet is composed mainly of water and ammonia ice, its diameter is about 51,000 kilometers, about four times that of the Earth, and its mass is about 15 times greater than Earth’s. Uranus also has 13 rings and 28 satellites.
In January 1986, NASA’s Voyager 2 space probe successfully completed what has been, to date, the only exploration of the planet, conducting a flyby as part of its mission to study the outer planets of the Solar System.
SpaceX may have solved one problem only to find more on latest Starship flight
Science - Posted On:2025-05-28 10:00:01 Source: arstechnica
SpaceX made some progress on another test flight of the world's most powerful rocket Tuesday, finally overcoming technical problems that plagued the program's two previous launches.
But minutes into the mission, SpaceX's Starship lost control as it cruised through space, then tumbled back into the atmosphere somewhere over the Indian Ocean nearly an hour after taking off from Starbase, Texas, the company's privately owned spaceport near the US-Mexico border.
SpaceX's next-generation rocket is designed to eventually ferry cargo and private and government crews between the Earth, the Moon, and Mars. The rocket is complex and gargantuan, wider and longer than a Boeing 747 jumbo jet, and after nearly two years of steady progress since its first test flight in 2023, this has been a year of setbacks for Starship.
SpaceX may have solved one problem, only to find more on latest Starship flight
Science - Posted On:2025-05-28 06:15:01 Source: arstechnica
SpaceX made some progress on another test flight of the world's most powerful rocket Tuesday, finally overcoming technical problems that plagued the program's two previous launches.
But minutes into the mission, SpaceX's Starship lost control as it cruised through space, then tumbled back into the atmosphere somewhere over the Indian Ocean nearly an hour after taking off from Starbase, Texas, the company's privately-owned spaceport near the US-Mexico border.
SpaceX's next-generation rocket is designed to eventually ferry cargo and private and government crews between the Earth, the Moon, and Mars. The rocket is complex and gargantuan, wider and longer than a Boeing 747 jumbo jet, and after nearly two years of steady progress since its first test flight in 2023, this has been a year of setbacks for Starship.
SpaceX Starship Blasts Off In Ninth Test Flight
science - Posted On:2025-05-27 22:15:00 Source: slashdot
SpaceX's Starship Flight 9 successfully launched and reached space -- marking the first reuse of a Super Heavy booster -- but both rocket stages were ultimately lost mid-mission due to a "rapid unscheduled disassembly." SpaceX CEO Elon Musk said in a statement: "Starship made it to the scheduled ship engine cutoff, so big improvement over last flight! Leaks caused loss of main tank pressure during the coast and re-entry phase. Lot of good data to review." Musk said the next three Starship test launches could lift off every three to four weeks in the days ahead. Space.com reports: The mission lifted off from Starbase today at 7:37 p.m. EDT (2337 GMT; 6:37 p.m. local Texas time), sending the 40-story-tall rocket into the Texas sky atop a pillar of flame. It was a milestone launch, marking the first-ever reuse of a Super Heavy booster; this one earned its wings on Flight 7 in January. (SpaceX swapped out just four of its Raptors after that mission, meaning that 29 of the engines that flew today were flight-proven.) "Lessons learned from the first booster refurbishment and subsequent performance in flight will enable faster turnarounds of future reflights as progress is made towards vehicles requiring no hands-on maintenance between launches," the company wrote in a Flight 9 mission preview. The Super Heavy had a somewhat different job to do today; it conducted a variety of experiments on its way back down to Earth. For example, the booster performed a controlled rather than randomized return flip and hit the atmosphere at a different angle. "By increasing the amount of atmospheric drag on the vehicle, a higher angle of attack can result in a lower descent speed, which in turn requires less propellant for the initial landing burn," SpaceX wrote in the mission preview. "Getting real-world data on how the booster is able to control its flight at this higher angle of attack will contribute to improved performance on future vehicles, including the next generation of Super Heavy." These experiments complicated Super Heavy's flight profile compared to previous missions, making another "chopsticks" catch at Starbase a tougher proposition. So, rather than risk damaging the launch tower and other infrastructure, SpaceX decided to bring the booster back for a "hard splashdown" in the Gulf of Mexico on Flight 9. That was the plan, anyway; Super Heavy didn't quite make it that far. The booster broke apart about 6 minutes and 20 seconds into today's flight, just after beginning its landing burn. "Confirmation that the booster did demise," [Dan Huot, of SpaceX's communications team] said during the Flight 9 webcast. Super Heavy's flight ended "before it was able to get through landing burn," he added. Ship, by contrast, improved its performance a bit this time around. It reached space today on a suborbital trajectory that took it eastward over the Atlantic Ocean -- the same basic path the vehicle took on the truncated Flight 7 and Flight 8. But Flight 9 got choppy for Ship after that. The vehicle was supposed to deploy eight dummy versions of SpaceX's Starlink satellites about 18.5 minutes after liftoff, which would have been a landmark first for the Starship program. That didn't happen, however; the payload door couldn't open fully, so SpaceX abandoned the deployment try. Then, about 30 minutes after launch, Ship started to tumble, which was the result of a leak in Ship's fuel-tank systems, according to Huot. "A lot of those [tanks] are used for your attitude control," he said. "And so, at this point, we've essentially lost our attitude control with Starship." As a result, SpaceX nixed a plan to relight one of Ship's Raptor engines in space, a test that was supposed to happen about 38 minutes after launch. And the company gave up hope of a soft splashdown for the vehicle, instead becoming resigned to a breakup over the Indian Ocean during Ship's reentry. The company therefore will not get all the data it wanted about Flight 9. And there was quite a bit to get; for example, SpaceX removed some of Ship's heat-shield tiles to stress-test vulnerable areas, and it also tried out several different tile materials, including one with an active cooling system. But the company plans to bounce back and try again soon, just as it did after Flight 7 and Flight 8. You can watch a recording of the launch on YouTube. Read more of this story at Slashdot.
After the LA fires, scientists study the toxic hazards left behind
Science - Posted On:2025-05-27 17:15:00 Source: arstechnica
This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, energy, and the environment. Sign up for their newsletter here.
PASADENA, Calif.—Nicole Byrne watched anxiously from across the small kitchen in her home as Parham Azimi, a Harvard University researcher, lined up sample bottles next to the running tap.
As his phone timer chimed, indicating the water pipes had been flushed for the required five minutes, Azimi began filling collection bottles and packing them to be mailed to a lab in San Diego later that day.
Falcon 9 sonic booms can feel more like seismic waves
Science - Posted On:2025-05-27 14:30:01 Source: arstechnica
The Vandenberg Space Force Base in Santa Barbara, California, serves military space launch missions as well as launches for NASA and commercial entities like SpaceX. But how do all those launches affect residents living along the Central Coast? People might marvel at the spectacular visual display, but as launch activity at the base has ramped up, so have the noise complaints, particularly about the sonic booms produced by Falcon 9 launches, which can reach as far south as Ventura County. The booms rattle windows, frighten pets, and have raised concerns about threats to the structural integrity of private homes.
There have been rockets launching from Vandenberg for decades, so why are the Falcon 9 launches of such concern? "Because of the Starlink satellites, the orbital mechanics for where they're trying to place these in orbit is bringing [the trajectories] closer to the coast," said Brigham Young University's Kent Gee, who described his research into sonic boom effects on neighboring communities in a press briefing at a meeting of the Acoustical Society of America in New Orleans. And the launches are occurring much more frequently, from two to three launches per year in the 1980s to between five and seven launches each month today. There were 46 Falcon 9 launches out of the Vandenberg base in 2024 alone, per Gee.
Gee joined a project called ECOBOOM (Environmental and Community Observation of Sonic Booms) to study the factors that can impact just how jarring those sonic booms might be, conducted jointly by BYU and California State University, Bakersfield, with cooperation from the Space Force. "Space Force is interested in this because they feel a sense of stewardship," said Gee. "These rockets from SpaceX and other providers are launched from the base for a variety of missions and they want to understand the effects both on and off base, trying to understand how they can complete the mission while minimizing [negative] impacts."
GLP-1 Drug Use Surges 600% as 2% of Americans Take Weight-Loss Medications
science - Posted On:2025-05-27 13:00:01 Source: slashdot
An anonymous reader shares a report: More than 2% of Americans are taking the blockbuster class of GLP-1 drugs for overweight or obesity, up nearly 600% over six years, according to a report from FAIR Health given to Axios first. The data from FAIR Health's repository of over 51 billion commercial healthcare claim records shows the explosion in use of the drugs specifically for weight loss -- roughly half of all users. In all, roughly 4% of Americans were taking GLP-1 drugs in 2024 for either overweight, obesity or Type 2 diabetes (their original approved use). The data shows Novo Nordisk's Ozempic is still by far the most commonly taken GLP-1, followed by Eli Lilly's Mounjaro. The percentage of adults who were prescribed a GLP-1 drug but did not have bariatric surgery increased from 2.5% in 2019 to 11.2% in 2024 while the the percentage of adult patients who had bariatric surgery decreased 41.8%. Read more of this story at Slashdot.