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Remember, 100° in the USA means you're hot; 100° anywhere else means it's the apocalypse. Image credit: Tomas Ragina/Shutterstock.com Oh, America. You do so confuse the rest of the world, with your “pounds per square inch” and “cups”, instead of sensible measurements like Pascals and liters. And part and parcel of that is your stubborn refusal to drop Fahrenheit in favor of Celsius. Of course, we admit that Fahrenheit does have some advantages. But are they really enough to justify its use in the 21st century? Let’s find out. The case for Fahrenheit We’ll say it: Fahrenheit gets a bad...

The distant galaxy has all the structure of a modern spiral galaxy (the object next to it is another galaxy in the foreground). Image credit: Xiao et al., arXiv 2024 (CC BY 4.0) It has been just over three years since JWST was launched into space and in that time, the telescope has dramatically expanded our understanding of the distant universe. Among the important findings is the discovery of very young galaxies that already looked like their more senior counterparts in the local universe, and a recent study has shown a spiral galaxy that already had everything modern ones do...

The human ability to walk and run efficiently on two feet arose around 2 million years ago with our Homo erectus ancestors. But our earlier relatives, the australopithecines, were also bipedal around 4 million years ago. Given the long arms and different body proportions of species like Australopithecus afarensis, though, researchers have assumed that australopithecines were less capable of walking on two legs than modern humans. In a study published online Dec. 18 in the journal Current Biology, a team of researchers modeled the skeletal and muscular anatomy of Lucy to determine her maximum running speed, the energetic costs associated...

Every time you reach for a coke, you could be losing 12 minutes of your life, scientists have claimed. The worrying statistics were found in a study conducted by the University of Michigan which delved into just how much time certain processed foods take from your life. Ultra-processed foods – which contain ingredients such as artificial colours and flavours, preservatives and emulsifiers – can be dangerous if not eaten in moderation. And some favourites could end up costing you minutes of your life. A hot dog could shave off 36 minutes – and if you drink it with a coke,...

Quantum teleportation, once confined to the pages of science fiction, is steadily becoming a tangible scientific achievement. Advances in quantum mechanics over the last decade have transformed teleportation from a theoretical concept into an experimental reality. These breakthroughs have revealed innovative methods for transmitting information instantaneously over vast distances, offering transformative possibilities for computing, communication, and cryptography. Scientists are now closer than ever to bridging the gap between imagination and reality in this cutting-edge field.

A controversial 2020 study that claimed the malaria drug hydroxychloroquine showed promise for treating COVID-19 has been retracted, after sparking widespread criticism from scientists ever since its publication. The study was originally published online in the International Journal of Antimicrobial Agents on March 20, 2020. With a small sample size of just 36 total participants, the trial had involved treating 20 COVID-19 patients with 600 milligrams of hydroxychloroquine, a drug best known as an antimalarial. Some of the patients were also given the antibiotic azithromycin. Based on the results, the authors concluded that hydroxychloroquine was “significantly associated with viral load...

Hping to keep tabs on the magnetic north's wandering ways, the World Magnetic Model 2025 has been released this week, revealing the latest official predicted placement of Earth's magnetic fields. This version will remain valid until late 2029, during which time we can expect to see the magnetic north pole slowly edge further toward Russia. The new version is of timely importance too as the magnetic north pole’s movement seems to be accelerating. Since the 1830s, the north magnetic pole of Earth has relocated some 2,250 kilometers (1,400 miles) across the upper stretches of the Northern Hemisphere from Canada towards...

A new study led by a University of Arizona researcher is one step closer to an answer on how Indigenous people in the Americas interacted with early dogs and wolves.The study, published Wednesday in the journal Science Advances and based on archaeological remains in Alaska, shows that people and the ancestors of today's dogs began forming close relationships as early as 12,000 years ago – about 2,000 years earlier than previously recorded in the Americas..."People like me who are interested in the peopling of the Americas are very interested in knowing if those first Americans came with dogs," Lanoë added....

The object entered our orbit in September. Image credit: buradaki/Shutterstock.com Earlier this year, the number of moons orbiting Earth temporarily doubled, admittedly from the low starting point of "one". Taking a closer look at the new mini-moon, astronomers have learned more about its origin. On August 7, astronomers discovered a new near-Earth object, dubbed 2024 PT5. Analyzing the object, around 10 meters (33 feet) in diameter, astronomers from the Complutense University of Madrid, Carlos de la Fuente Marcos and Raúl de la Fuente Marcos, found that it was on a pleasing trajectory. For 56.6 days, the asteroid would become captured...

A stuffed Tasmanian tiger (Thylacinus cynocephalus) at the Natural History Museum in Berlin, Germany. Image credit: Mazur Travel/Shutterstock.com Scientists claim to have pieced together the most complete genome of a Tasmanian tiger to date – with the help of RNA from a head that’s been preserved in alcohol for over a century. The potential breakthrough is the latest chapter in an effort by Colossal Biosciences and the University of Melbourne’s Thylacine Integrated Genetic Restoration Research (TIGRR) Lab to resurrect the extinct animal, also known as a thylacine. The team estimates that their new genome of the animal is over 99.9...

The crater lies deep beneath the Atlantic Ocean and was formed around 66 million years ago – making it a contemporary of Chicxulub. It is thought that the asteroid hit Earth at around 72,000 kilometers (44,700 miles) per hour. Image credit: muratart/Shutterstock.com Some 66 million years ago, a massive asteroid slammed into Earth. The Chicxulub impactor, as it is called, famously wiped out the non-avian dinosaurs and left a huge crater at the edge of the Yucatán peninsula – but it may not have acted alone. New research has revealed that a second, smaller space rock smashed into our planet...

The unmistakable work of prehistoric humans was found etched into the mammoth's hide. Yuka the mammoth may have been killed by cave lions. Image credit: Zhuravlev Andrey/Shutterstock.com Often hailed as the best-preserved woolly mammoth corpse ever discovered, the body of a young female specimen named Yuka has just yielded a staggering surprise. By analyzing cut marks on the animal's hide, researchers have now determined that the beast was butchered by humans 39,000 years ago, thus providing the earliest evidence for the presence of people in the Arctic. Discovered in 2010 in the extreme north of Siberia, Yuka is thought to...

In a couple of weeks, Earth will have a mini-moon for 56.6 days. Welcome to the neighborhood, 2024 PT5. Image credit: Buradaki/Shutterstock.com An asteroid heading towards Earth is set to have an unusual fate: instead of smashing through our planet’s atmosphere, it’s likely to become trapped in orbit and become a mini-moon. It will be a swift visit, however, and is likely to only remain in Earth's gravitational grasp for two months. The asteroid, named 2024 PT5, was discovered on August 7 and measures around 10 meters (33 feet) in diameter. Two astronomers from the Complutense University of Madrid, Carlos...

The carvings at Göbekli Tepe even show the movements of the constellations. Image credit: Dr Martin Sweatman Acataclysmic comet impact 13,000 years ago may have sparked the rise of civilization, according to the authors of a new study. The event – which many scientists believe never happened – may even be documented at the world-famous site of Göbekli Tepe, forming part of a series of carvings that the researchers say represent the world’s oldest solar calendar. Located in southern Türkiye, Göbekli Tepe is a pre-pottery Neolithic complex that is estimated to be around 12,000 years old. Analyzing an intricately carved...

It looks like the original explanation for where Homo floresiensis came from was right all along. The Hobbit humerus fragment (left) from Mata Menge next to one from Liang Bua to scale, and the full collection of bones from the most complete Liang Bua Hobbit. Image Credit: Yousuke Kaifu ================================================================================ Three new fossils, including part of a humerus, have been found at Mata Menge on the Indonesian island of Flores. They indicate that Homo floresiensis, popularly known as Hobbits, were descended from Homo erectus, and became small relatively soon after arriving on Flores. Indeed, it seems at least some Hobbits...

Women who have sex less than once a week may be more likely to die early than those who engage in more regular intercourse, according to the results of a new study. While this same impact was not observed in men, the researchers did note that more frequent sex reduces the chances of an early grave in both men and women with depression. “Sexual activity is important for overall cardiovascular health possibly due to reduction of heart rate variability and blood flow increase,” write the authors. “Using findings from our study, we can infer that sexual activity, broadly defined, may...

Not all fat cells are bad. Image credit: Nilang Kachare/Shutterstock.com ================================================================== Scientists have figured out a way to transform white fat cells into beige ones, effectively forcing them to burn calories rather than store them. Though the feat has so far only been achieved in mice, the researchers say their discovery could lead to the development of new weight-loss treatments for humans. We all have three basic types of fat cell - white, brown and beige. White fat cells store lipids and cause us to gain weight when we have too many of them. Brown fat cells, on the other...

People also often try to simply change the topic of conversation. Image credit: zeljkodan/Shutterstock.com ================================================================== Eating too much meat is bad for you, bad for the environment, and fatal for the animals involved. Those are straight facts, indisputable and proven through years of study. But counterpoint: have you considered that vegans are annoying? If the comments section under just about any media promoting a vegetarian or vegan diet is anything to go by, the answer to that question is probably “yes”. And, in any case, what about all the poor plants, huh? You okay with murdering them, IFLScience? The blood...

Polyamory has been on the rise for some time, despite the social and political stigmas surrounding it, but research suggests that such romantic relationships can offer emotional and physical benefits to all involved. Consensual polyamory – having more than one sexual or emotional relationship at once – has become increasingly common in many countries in recent years. According to statistics published in 2021, 4 to 5 percent of the American population practices polyamory, while a 2019 YouGov survey found that 7 percent of UK adults had been in a consensual non-monogamous relationship at some point in their lives. This latter...

These results are a step forward in finding a vaccine against HIV and many other pathogens.Researchers report the positive results from a Phase 1 clinical trial focused on a vaccine against the Human Immunodeficiency Virus (HIV). The pathogen does not usually produce an immune response large enough to stop it, which has made it a dangerous and deadly virus. One of the goals in the creation of a vaccine is to find a formula that would indue the so-called broadly neutralizing antibodies (bnAb), an immune response that can step up to the challenge. And the trial shows that this vaccine...