Tardigrades are the undisputed masters of survival. Bake them at 300 degrees Fahrenheit, freeze them to within a degree of absolute zero, deprive them of water and oxygen, subject them to the vacuum of space — they will still survive. And now scientists have begun to show how we can harness their legendary resilience to advance human medicine. Inspired by the feats of these near-microscopic animals (also known as water bears), researchers at the University of Wyoming wanted to see what would h ...read more

To fully understand how ancient plastic surgery is one need only look to the root of its meaning.The term plastic surgery has nothing to do with plastic. In fact, it comes from the Greek word plastikos, which means to mold. And plastic surgery is just that: the molding of human tissue.The word came along long before the plastic industry, says Darrick Antell, an assistant clinical professor of plastic surgery at the Icahn School of Medicine at Mount Sinai in New York and the only plastic surgeon ...read more

Beyond our planet’s atmosphere, the system of timekeeping that gives structure to life falls apart. The words “day” and “night” mean something radically different when you’re completing an orbit of Earth every 90 minutes, as astronauts do aboard the International Space Station (that’s 16 sunrises and sunsets in each 24-hour period).Since the human body and its circadian rhythms — patterns of sleep and wakefulness regulated by our internal clock — evolved here on Earth, we’re ...read more

In May 2023, U.S. Surgeon General Vivek H. Murthy issued a public health advisory calling loneliness and isolation a public health crisis that poses serious health risks, including increased risk for cardiovascular disease, dementia, stroke, depression, anxiety, and premature death. “The mortality impact of being socially disconnected is similar to that caused by smoking up to 15 cigarettes a day and even greater than that associated with obesity and physical inactivity,” he wrote. Loneline ...read more

The myth of Rasputin, the Mad Monk, is well-known: He was a scheming sexual predator who insinuated himself into court life with devastating effects on Russia’s royal family. The reality — what we know of it — is much more nuanced. Most of what we know about Rasputin is thanks to Douglas Smith, historian and translator, who in 2016 published an exhaustively researched biography, Rasputin: Faith, Power, and the Twilight of the Romanovs. According to Smith, if the Rasputin you know is the ch ...read more

Lions may be the kings of the jungle, but they can face threats themselves – especially lion cubs. Young lions are often vulnerable to male lions from other coalitions that can kill clubs so they can mate with the female lions. Spotted hyenas and other large carnivores also present a threat to lion cubs.New research in a study published recently in the Journal of Animal Ecology, revealed that male lions have a certain way of defending their territory from danger – from either rival male coal ...read more

In March of 1942, the U.S. was only a few months into the Second World War. Already, German submarines lurked near the Atlantic coast, hunting for supply freighters and battleships. Late in the month, a U-71 detected the Dixie Arrow, an oil tanker carrying more than 86,000 barrels of crude oil from Texas to New Jersey.The submarine fired two torpedoes at the target. Within a minute, the tanker was ablaze and sinking. Twenty-two crew members made it to safety; 11 died in the attack.The tanker san ...read more

On a Wednesday morning in late January 1896, at a small light bulb factory in Chicago, a middle-aged woman named Rose Lee found herself at the heart of a groundbreaking medical endeavor. With an X-ray tube positioned above the tumor in her left breast, Lee was treated with a torrent of high-energy particles that penetrated into the malignant mass.“And so,” as her treating clinician later wrote, “without the blaring of trumpets or the beating of drums, X-ray therapy was born.”Radiation th ...read more

Like many of the researchers who study how people find their way from place to place, David Uttal is a poor navigator. “When I was 13 years old, I got lost on a Boy Scout hike, and I was lost for two and a half days,” recalls the Northwestern University cognitive scientist. And he’s still bad at finding his way around.The world is full of people like Uttal — and their opposites, the folks who always seem to know exactly where they are and how to get where they want to go. Scientists some ...read more

If space systems such as GPS were hacked and knocked offline, much of the world would instantly be returned to the communications and navigation technologies of the 1950s. Yet space cybersecurity is largely invisible to the public at a time of heightened geopolitical tensions.Cyberattacks on satellites have occurred since the 1980s, but the global wake-up alarm went off only a couple of years ago. An hour before Russia’s invasion of Ukraine on Feb. 24, 2022, its government operatives hacked Vi ...read more