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This brings us to the technique being used here. In this case, the researchers placed the antibody genes in a circular loop of DNA called a plasmid. This is enough to ensure that the DNA doesn’t get digested immediately and to get the antibody genes made into proteins. But it does nothing to help get the DNA inside of cells. The research team, a mixture of people from a biotech company and academic labs, used a commercial injection setup that mixes the injection of the DNA with short pulses of electricity. The electricity disrupts the cell membrane, allowing the plasmid…

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. A venomous snake bite is not something you ever want to encounter on a hiking or camping trip. For those brave scientists who study snakes–aka herpetologists–the mechanics behind the reptiles’ fast fangs are more fascinating than fear-inducing. Snakes must move incredibly quickly to sink their fangs into prey before the victim flinches. When hunting rodents, this may be as little as 60 milliseconds. With advances in video technology, a group from Monash University in Australia are getting an up-close-and-personal look at how venomous viper, elapid, and…

Deadly doses The supplements were: Artri King, Nhan Sam Tuyet Lien, and Linsen Double Caulis Plus. All are known to contain unlisted glucocorticoids, according to the Food and Drug Administration. And testing of two of the man’s supplements by the hospital confirmed the presence of the steroids. Doctors determined that the man had essentially overdosed on the glucocorticoids—he had taken doses that exceeded the normal levels of glucocorticoids in the body. The steroids likely suppressed immune responses, leading to his infections and GI ulcers. But, more significantly, the excess steroid levels also caused his HPA axis to essentially shut down.…

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. A human has outkissed one of Google’s superpowered artificial intelligence systems. The achievement isn’t in the realm of romance, however. Instead, this win is in the intellectual realm of advanced mathematics. While largely conceptual in nature, the ramifications could soon help boost advancements in telecommunications and satellite arrays. What is the kissing problem? The “kissing problem” isn’t the term for a junior high dance conundrum—it’s actually a reference to a famous mathematical riddle. The setup is simple: How many circles or spheres can be arranged so…

In turn, the delay in network state propagations spilled over to a network load balancer that AWS services rely on for stability. As a result, AWS customers experienced connection errors from the US-East-1 region. AWS network functions affected included the creating and modifying Redshift clusters, Lambda invocations, and Fargate task launches such as Managed Workflows for Apache Airflow, Outposts lifecycle operations, and the AWS Support Center. For the time being, Amazon has disabled the DynamoDB DNS Planner and the DNS Enactor automation worldwide while it works to fix the race condition and add protections to prevent the application of incorrect…

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Until recently, Iceland was the only country in the world to be free of one of the most maddening and dangerous insects: mosquitoes. But if you’re thinking that a second nation has been declared mosquito-free, brace yourself for some bad news. The Nordic island has just confirmed the discovery of mosquitoes in the municipality of Kjós. “At dusk on the evening of 16 October I noticed a strange-looking fly,” said presumed Icelander Björn Hjaltason, as reported by RÚV English. “I immediately had a suspicion about what…

Measured sycophancy rates on the BrokenMath benchmark. Lower is better. Measured sycophancy rates on the BrokenMath benchmark. Lower is better. Credit: Petrov et al GPT-5 also showed the best “utility” across the tested models, solving 58 percent of the original problems despite the errors introduced in the modified theorems. Overall, though, LLMs also showed more sycophancy when the original problem proved more difficult to solve, the researchers found. While hallucinating proofs for false theorems is obviously a big problem, the researchers also warn against using LLMs to generate novel theorems for AI solving. In testing, they found this kind of…

Sign Up For Goods 🛍️ Product news, reviews, and must-have deals. The criteria was simple … the choice was anything but: pick the best audio products we employed and experiences we enjoyed in 2025. Share our obsession with tech that lets us press play and bliss out. But we view and review as many headphones, earbuds, speakers, and components as we can get our hands on and ears in every year, so we needed to narrow it down to what gave us goosebumps. We chased gear that disappears and kit with an undeniable character, remembered what purposefully seduced and fearlessly…

For millennia, some of the world’s largest filter-feeding whales, including humpbacks, fin whales, and blue whales, have undertaken some of the longest migrations on earth to travel between their warm breeding grounds in the tropics to nutrient-rich feeding destinations in the poles each year. “Nature has finely tuned these journeys, guided by memory and environmental cues that tell whales when to move and where to go,” said Trisha Atwood, an ecologist and associate professor at Utah State University’s Quinney College of Agriculture and Natural Resources. But, she said, climate change is “scrambling these signals,” forcing the marine mammals to veer…

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. What’s the weirdest thing you learned this week? Well, whatever it is, we promise you’ll have an even weirder answer if you listen to PopSci’s hit podcast. The Weirdest Thing I Learned This Week hits Apple, Spotify, YouTube, and everywhere else you listen to podcasts every-other Wednesday morning. It’s your new favorite source for the strangest science-adjacent facts, figures, and Wikipedia spirals the editors of Popular Science can muster. If you like the stories in this post, we guarantee you’ll love the show. FACT: You’re not…