List of All Articles with Tag 'science'

The two Koreas are in a space race. The North is upgrading its space center to accommodate the

After more than three years, the global Covid emergency is officially over. Yet it’s still killing at least

One of New York's most beautiful sights is right around the corner—or, straight down the street toward New Jersey.

It feels like every day there’s a science story that comes along ready to blow our tiny minds, and today is no exception. A series of ancient interconnected cities have been discovered in the remote El Mirador jungle Guatemala, and it’s changing our entire understanding of the ancient civilisation. More than 400 settlements have been uncovered with some dating back as far as 1,000 BC. They’re linked by roads too, and it’s led them to be described as “the first freeway system in the world”. Sign up to our free Indy100 weekly newsletter Richard Hansen, a research professor at the University of Idaho, is an expert on the project and he’d called the findings a “game-changer”. It was previously thought that the Mayan peoples were nomadic, but these cities have changed the scientific community’s understanding. Speaking to the Washington Post, Hansen said: "We now know that the Preclassic period was one of extraordinary complexity and architectural sophistication, with some of the largest buildings in world history being constructed during this time.” On top of the 110 miles of interconnected roads, the discoveries also showed evidence of organised agriculture and even hydraulic systems. The findings are the result of work which first began in 2015, which saw lidar technology uncovered signs of ancient structures below the surface. Archaeologist Enrique Hernández, from San Carlos University said about the findings: “Now there are more than 900 [settlements]… We [couldn’t] see that before. It was impossible,” he said. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Big news for WhatsApp users who are a bit trigger happy when sending risky texts. You will now be able to edit your messages sent via the platform, within 15 minutes. "From correcting a simple misspelling to adding extra context to a message, we're excited to bring you more control over your chats," the messaging service said in a blog post on Monday. "All you need to do is long-press on a sent message and choose 'Edit' from the menu for up to fifteen minutes after," it added. Edited messages will be tagged as "edited", so recipients can see the message has been changed. Sign up to our free Indy100 weekly newsletter But they won't be able to see how the message has been edited. It comes after Twitter said it was giving its paying subscribers the ability to edit their tweets last year. Tweets can be edited a few times in the 30 minutes after posting. "Tweeting will feel more approachable and less stressful," Twitter said in a blog post at the time. "You should be able to participate in the conversation in a way that makes sense to you and we'll keep working on ways that make it feel effortless to do just that," the platform added. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Bryan Johnson, the multimillionaire tech and science entrepreneur who is trying to reverse his biological age, has taken the next odd step in his attempt to achieve this. Johnson, who has already spent millions of dollars every year trying to turn back the clock, has now revealed that he’s injected himself with his teenage son’s blood. The multimillionaire recruited his 17-year-old son, Talmage, and his 70-year-old father, Richard, for a trigenerational blood transfusion. The family travelled to a clinic in Dallas, where Talmage and Richard gave a litre of their blood for it to be converted into a batch of plasma. Bryan then donated a litre of his blood to Richard. Sign up to our free Indy100 weekly newsletter Claims that plasma from younger bodies can benefit older people’s health have been around for a while. Previously there have been studies carried out on mice, however experts say the results are inconclusive. The FDA does not recommend the blood infusions Bryan has done. "We have not learned enough to suggest this is a viable human treatment for anything." said Charles Brenner, a biochemist at City of Hope National Medical Centre in Los Angeles. The 45-year-old has previously spoken about his lifestyle, and told the BBC that there have been improvements in different parts of his body. "my left ear is 64, my fitness tests say I’m 18, my heart is 37, my diaphragm strength is 18," he said. Bryan’s mission to reverse the ageing process has been titled ‘Project Blueprint,’ and involves following a strict diet, sleep, and exercise routine. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

If you’re anything like us, you were probably absolutely obsessed with dinosaurs as a child. However, did you ever stop to think about the sheer number of dinos that were wandering around the planet before they met their untimely end at the hands of an asteroid? A new study has been published which states that a whopping 1.7 billion T-Rex roamed the Earth in total across the Late Cretaceous period. It comes after researchers calculated their average lifespan, which measured up to a whopping 40 feet in length and 12 feet in height. Sign up to our free Indy100 weekly newsletter They cross referenced this with the number of eggs which survived and the sexual maturity of the animals to come up with the figure. It’s a huge number, but it’s actually far less than previously thought. A previous study from 2021 estimated that there were 800 million more of them that existed between about 90 to 66 million years ago. The research was published in Palaeontology, and evolutionary ecologist Eva Griebeler from the Johannes Gutenberg University of Mainz in Germany wrote about the findings. "Unlike my model, the generation time as well as life expectancies, gross reproduction rates, and reproductive values of individuals calculated from the previous model all strongly contradicted our current understanding of the biology of T. rex and of other theropods,” she said. "Their values also disagreed with those of large extant reptiles, birds, and mammals. All of these shortcomings of the previous model favor the assessment of individual and population characteristics of T. rex and of other extinct species using my model." Griebeler also explained how the findings suggest a lower T-Rex survival rate, as well as fewer generations of the animal and less egg laying. "All of these shortcomings of the previous model favor the assessment of individual and population characteristics of T. rex and other extinct species using my model," she wrote. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

A young girl who was bullied for being autistic may have a higher IQ than Stephen Hawking or Albert Einstein. Adhara Maite Pérez Sánchez, an 11-year-old from Tláhuac, Mexico, is being described as a prodigy by many after recently graduating with a degree in Systems Engineering. She is now going on to study industrial engineering. The extraordinary girl has a passion for astronomy and space, expressing the dream to become the first Mexican woman to travel to space as an astronaut and has given talks about her interest and knowledge of aerospace. She intends to become an astronaut at NASA, and is currently taking courses in astronomy and gravitational waves at the National Autonomous University of Mexico (UNAM), which is widely regarded as a top research university. Sign up to our free Indy100 weekly newsletter Adhara has also had her achievements recognised in 2021 by the Senate of the Republic, as well as being declared one of Mexico’s 100 most influential women, and appearing on the cover Marie Claire Mexico. However, life hasn’t always been easy for Adhara, who struggled with being bullied by her classmates. Often labelled as a ‘weirdo’ for her autism. Adhara was diagnosed with Asperger’s at 3 years old, but has succeeded greatly with it. Recently she has begun developing a bracelet designed to monitor the emotions of children such as herself in order to improve their communication skills. But she hasn’t let the negativity bring her down. Determined to succeed and achieve her goals in spite of what others say about her. Her inspirations include late physicist, Stephen Hawking, and Carmen Félix, a Mexican engineer currently developing a plan to launch a manned mission to Mars. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

SpaceX's second private flight just made history by sending Saudi Arabia's first female astronaut towards the International Space Station. The SpaceX Falcon rocket launched from NASA's Kennedy Space Centre on Sunday night, and the astronaut and the other three passengers are expected to reach the space station in their capsule on Monday, where they will hang out for just over a week. Saudi Arabia's first astronauts in decades are stem cell researcher Rayyanah Barnawi, and Royal Saudi Air Force fighter pilot Ali al Qarni. "This is a dream come true for everyone," Barnawi said before the flight. Sign up to our free Indy100 weekly newsletter "Just being able to understand that this is possible - if me and Ali can do it, then they can do it, too." The journey was organised by Houston-based Axiom Space and the crew was led by Peggy Whitson, a former NASA astronaut who holds the US record for the most accumulated time in space - 665 days and counting. The company would not reveal how much the latest tickets cost, but previously cited per-seat prices of $55m (£44m). Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

SpaceX launched four private astronauts en route to the International Space Station, including the first woman from Saudi

Artificial intelligence has unrealistic and often dangerous ideas of what the “perfect” man and woman look like, according to a new study. Chiselled features, olive skin and eight-pack abs are among the features that kept cropping up when three leading AI image generators were tasked with creating “ideal” male and female bodies. The challenge was put to the popular programmes Dall-E 2, Stable Diffusion, and Midjourney by eating disorder awareness group the Bulimia Project, which separated its request into two parts. First up, it asked the generators to come up with pictures of men and women based specifically on beauty standards set by social media. Sign up for our free Indy100 weekly newsletter Although it churned out quite a few different options, it showed a number of noticeable biases. Nearly all of the images featured petite women – with Midjourney named as the worst culprit – and all of the men looked like photoshopped versions of bodybuilders. The three AI favoured women with blonde hair and men with brown hair, and nearly half of the male images had facial hair. After analysing their findings based on social media, the Bulimia Project team broadened the scope of the task. This time, they asked the programmes to base their creations on images from across the internet. The main difference between the two categories was that the social media set was “far more sexually charged”, according to the study’s authors. The social media images also featured “largely disproportionate body parts”, which the Bulimia Project described as “unsettling”. “We can only assume that the reason AI came up with so many oddly shaped versions of the physiques it found on social media is that these platforms promote unrealistic body types, to begin with,” it said. “In the age of Instagram and Snapchat filters, no one can reasonably achieve the physical standards set by social media. So, why try to meet unrealistic ideals? It’s both mentally and physically healthier to keep body image expectations squarely in the realm of reality.” Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Are your grandparents up very early in the morning, without fail? Well, it turns out there are scientific reasons why older people wake up earlier as they get older. It’s been revealed that in later life, the natural process of ageing leads to changes in the times the body approaches sleep. According to HuffPost, our approach towards resting and amount of sleep we require is down to both genetics and our age. Cindy Lustig, who is a professor of psychology at the University of Michigan, said: “Like most of the things that change with age, there’s not just one reason, and they are all interconnected.” Sign up to our free Indy100 weekly newsletter It’s all to do with the brain becoming less responsive as people age to factors such as sunlight, social cues and physical activity which indicate where in the day we are at any given time. “The wiring of the brain is likely not sensing... and responding to the inputs as well as it should because it’s an ageing brain,” Dr. Sairam Parthasarathy, the director of the Center for Sleep and Circadian Sciences at the University of Arizona Health Sciences, also told the publication. “These are all what we call time givers, or they give time to the brain,” he said. In other words, they help the brain sense where it is in the 24-hour circadian cycle. Younger people can more easily connect indicators like eating dinner with the idea of sleeping in the next few hours. However, that’s not as easy for older people to register naturally, especially as their vision tends to suffer in later life. “Interestingly, one of [the reasons] seems to be that the vision changes that come with age reduce the intensity of the degree of light stimulation that our brain receives, which plays an important role in ‘setting’ our circadian clock and keeping it on track,” said Lustig. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.