Our Sun drives a constant outward flow of plasma, or ionized gas, called the solar wind, which envelops our solar system. Outside of Earth’s protective magnetosphere, the fastest solar wind rushes by at speeds of over 310 miles (500 kilometers) per second. But researchers haven’t been able to figure out how the wind gets enough energy to achieve that speed – until now.Our team of helio physicists published a paper in August 2024 that points to a new source of energy propelling the solar wi ...read more

What if we could see through skin? Scientists have managed to do just that, by mixing a common yellow dye with water and applying it on living mice. They used the technique to peer through the skin on mouse skulls and abdomens, according to a report in Science.The technique has potentially profound implications for medical imaging because it could provide less costly and more effective ways for doctors to see what’s going on in human tissue. The technique, while promising, has not yet been app ...read more

Automating food is unlike automating anything else. Food is fundamental to life – nourishing body and soul – so how it’s accessed, prepared and consumed can change societies fundamentally.Automated kitchens aren’t sci-fi visions from “The Jetsons” or “Star Trek.” The technology is real and global. Right now, robots are used to flip burgers, fry chicken, create pizzas, make sushi, prepare salads, serve ramen, bake bread, mix cocktails and much more. AI can invent recipes based on ...read more

Many people have seen dogs fetch, but cats like to get into the game too. Despite their very different hunting and play styles, fetching appears to combine elements of predatory and social behavior for both species.Although their domestication histories and natural behaviors are very different, cats and dogs share many similarities. Both species are predators, live closely with humans and are capable of enjoying rich social experiences with us.In our newly published study, we found that more tha ...read more

Collagen is the most abundant protein in animals. It is also one of the most enduring. Over the past few decades, paleontologists have found it in dinosaur fossils tens of millions of years old. Its persistence is perplexing, because the protein contains chemical bonds, that, on paper, should only last 500 years. So why does this stuff last so long? Chemists provide an answer to that mystery in an ACS Central Science report. The Strength of CollagenThe answer starts with collagen’s structure. ...read more

If you've ever seen a puffin, with its striking black-and-white feathers and vivid orange beak, you might have wondered: Are puffins penguins? The short answer is no, but the reasons why are as intriguing as these birds themselves. Puffins are unique creatures with their own fascinating characteristics. Here, we’ll explore what puffins are, where they live, how they hunt and fly, and why they are increasingly vulnerable to environmental threats — all while clearing up the puffin-penguin conf ...read more

On July 20, 1969, humanity achieved what was once thought impossible: landing on the Moon. The Apollo 11 mission, followed by five more successful Moon landings, marked a golden era of space exploration. However, after the last mission, Apollo 17 in 1972, humans haven’t set foot on the lunar surface again. It’s been more than 50 years, so why haven’t we returned to the Moon? The answer is complicated, involving politics, economics, and evolving priorities in space exploration.The End of th ...read more

Satellites have become a vital part of our daily lives, quietly orbiting Earth to enable technologies from weather forecasting to global communications. But while these modern marvels work tirelessly above us, they don’t last forever. Eventually, every satellite reaches the end of its life — and that often involves a fiery dive back through Earth’s atmosphere. But how often do satellites fall back to Earth, and what happens when they do?The Rise of the Satellite EraThe satellite era began ...read more

Sometimes, it’s a shark-eat-shark world. Documented cases of larger sharks dining on smaller ones are relatively rare. Scientists have now found the first evidence of a larger species consuming the porbeagle shark, according to a report in Frontiers in Marine Science.Porbeagles live in the Atlantic Ocean, the South Pacific Ocean and the Mediterranean Sea. They grow to around 12 feet and weigh up to about 500 pounds. Scientists started tracking a group of porbeagles in 2020 — not to see if th ...read more

Nature is disordered, messy, chaotic. But upon closer look, you might start noticing patterns, sequences, and symmetry on all sorts of varying scales, from the grandest spiral galaxies to the tiniest snail shell. One popular pattern spotted in many places is the Fibonacci sequence. You’ve likely encountered it before, perhaps as a spiral graphic often superimposed over images of human ears, hurricanes, or nautilus shells. How many of them are actually examples of the Fibonacci sequence arising ...read more