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Imagine wearing a robotic hand that can actually "feel" when your skin stretches, just like a real human hand. Or picture a prosthetic limb that sends natural nerve-like signals to the brain while using very little power. This futuristic idea is now much closer to reality thanks to a breakthrough by researchers led by Lee, who have successfully created a 3D-printed artificial sensory nerve that mimics one of the body's most important touch sensors. Their innovation combines neuromorphic technology , 3D printing , and advanced smart materials to create an artificial nerve capable of detecting stretching and converting it into electrical signals similar to those used by the human nervous system. The technology could transform prosthetic limbs, soft robots, wearable electronics, and future human-machine interfaces. What Are Neuromorphic Systems? Neuromorphic systems are electronic devices designed to work like the human brain and nervous system. Instead of processing infor...

Imagine wearing a ring that does much more than count your steps or monitor your heart rate. What if it could continuously track important health markers like glucose, ketones, vitamin C, lactate, uric acid, and even alcohol levels—all from your sweat, without needles or painful blood tests? That vision is becoming a reality thanks to researchers at the University of California San Diego (UC San Diego) . Engineers have developed a revolutionary smart ring that can continuously monitor multiple chemical biomarkers from finger sweat in real time. Their groundbreaking research, published in Nature Communications , introduces what they believe is the world's first fully integrated smart ring capable of daily biochemical monitoring. This innovation could transform the way people manage chronic diseases such as diabetes while also helping millions monitor their overall health more conveniently. A Smart Ring That Goes Beyond Fitness Tracking Today's smart rings have become increasingl...

For centuries, humans have admired the effortless way birds fly. A bird can land almost anywhere, rest for a while, and then suddenly jump into the air before spreading its wings and flying away. Scientists have long dreamed of giving flying robots the same ability. Now, a team of researchers led by Li has taken a major step toward making that dream a reality. The researchers have developed a large flapping-wing robot, called an ornithopter, that can jump into the air, take off without human assistance, land safely, and prepare itself for another flight. This remarkable achievement could change the future of aerial robotics, opening new possibilities for rescue operations, environmental monitoring, surveillance, and scientific exploration. What Is an Ornithopter? An ornithopter is a flying machine that flies by flapping its wings like a bird instead of using spinning propellers like drones or engines like airplanes. Unlike traditional drones, ornithopters are: Much quieter during f...

Space is becoming increasingly crowded. Thousands of inactive satellites, broken rocket parts, and other pieces of debris are orbiting Earth at incredible speeds. Even a tiny fragment traveling at over 28,000 kilometers per hour can seriously damage an active satellite or spacecraft. As space exploration continues to grow, removing this dangerous debris has become one of the biggest challenges for scientists and engineers. One major problem is that space debris is extremely difficult to capture. Unlike objects on Earth, debris floats in microgravity, often spinning unpredictably. Many objects were never designed to be grabbed by robots. Researchers have now developed an innovative robotic gripper inspired by one of nature's best climbers—the gecko. This new technology could transform how robots capture, move, and remove space debris while also supporting future space missions. Why Capturing Space Debris Is So Difficult Robots on Earth use many different methods to pick up objects....

Imagine a camera so powerful that it can "see" the invisible paths of tiny particles moving through matter. It sounds like science fiction, but scientists have now developed a revolutionary technology that can do exactly that. Researchers from ETH Zurich and EPFL Switzerland have created a new particle detector called PLATON . Instead of using millions of tiny detector pieces like current systems, PLATON uses a single block of special light-producing material, a highly advanced light-field camera, ultra-sensitive photon sensors, and artificial intelligence (AI) to create detailed 3D images of invisible particle tracks . This breakthrough could make future particle detectors cheaper, simpler, and even more powerful. It may also improve medical imaging technologies such as PET scans. Why Are Invisible Particles So Hard to Detect? Our universe is filled with particles that are almost impossible to see. Some of them, like neutrinos , pass through planets, buildings, and even ou...

Black holes are often described as cosmic monsters that swallow everything around them, including light. But scientists are discovering that these mysterious objects may also act as some of the most powerful natural particle accelerators in the universe. A new study by astrophysicist Zaza Osmanov shows that supermassive black holes, surrounded by extremely strong magnetic fields, can accelerate particles to extraordinary energies. The findings could help explain one of the biggest mysteries in astrophysics—the origin of very-high-energy cosmic rays. The research focuses on how particles such as protons and electrons gain energy near supermassive black holes through a process called first-order Fermi acceleration . The results suggest that protons can reach energies of up to 400 petaelectronvolts (PeV) , while electrons can be accelerated to about 120 gigaelectronvolts (GeV) . The Mystery of Cosmic Rays Cosmic rays are tiny charged particles that travel through space at nearly the spee...

The universe is full of mysteries, but two of the biggest are dark matter and dark energy . Scientists believe these two invisible things make up about 95% of the entire universe , yet no one knows exactly what they are. Dark matter cannot be seen, but its gravity helps hold galaxies together. Dark energy is even stranger. It is believed to be the force that is making the universe expand faster and faster. For many years, scientists have studied dark matter and dark energy as two separate mysteries. But now, a new study by Pereira and his team suggests something exciting. They believe that both dark matter and dark energy may come from gravity itself . If this idea is correct, it could completely change how we understand the universe. What Is Dark Matter? Everything we can see—stars, planets, galaxies, gas, dust, and even people—makes up only about 5% of the universe . The remaining 95% is invisible. Around 27% is thought to be dark matter, while about 68% is dark energy. Dark matt...