Uncover reality

Hydrogen is often called the fuel of the future because it is clean and produces no pollution. When hydrogen is burned, it only produces water, not harmful gases. But the big challenge is how to produce hydrogen in a clean and efficient way. Now, scientists from Ulsan National Institute of Science and Technology, led by Kim, have developed a new technology that makes hydrogen production from sunlight much more efficient. Their research focuses on improving a device called a photoelectrochemical (PEC) cell , which uses sunlight to split water into hydrogen and oxygen. This new method could bring us closer to a future where we can produce clean fuel directly from sunlight and water. What Is a PEC Cell and How Does It Work? A PEC cell is a special device that uses sunlight to break water (H₂O) into hydrogen (H₂) and oxygen (O₂). This process is called water splitting . The main part of a PEC cell is something called a photoelectrode . When sunlight hits this material, it creates energy t...

In the vast story of our universe, some of the most important characters are also the hardest to detect. Among them are neutrinos—tiny, nearly invisible particles that pass through everything, including our own bodies, almost without a trace. Now, a new study suggests these “ghost particles” may have played an even more mysterious role in the early universe than scientists once thought. Researchers from Washington University in St. Louis have proposed a bold idea: in the earliest moments after the Big Bang, some neutrinos may have transformed into a completely different form of radiation—something scientists call dark radiation . This surprising possibility could help solve long-standing puzzles about how the universe evolved. What Are Neutrinos—and Why Do They Matter? Neutrinos are among the most abundant particles in the universe. Every second, trillions of them pass through your body without you ever noticing. They are incredibly light and interact very weakly with matter, which is ...

For the first time in history, astronomers have found strong evidence of a giant volcanic cave beneath the surface of Venus. Using decades-old radar images from NASA’s Magellan mission , a team from the University of Trento in Italy has identified what appears to be an enormous lava tube beneath the volcano Nyx Mons . Their findings, published in Nature Communications , represent the first direct radar evidence of a subsurface volcanic conduit on our neighboring planet. A Hidden Giant Beneath Nyx Mons The newly discovered structure is located on the western flank of Nyx Mons, a massive shield volcano about 362 kilometers wide. Radar images reveal a dark pit surrounded by a chain of smaller collapses. The researchers have labeled this notable depression “Pit A.” While most pits show simple radar patterns of steep holes, Pit A behaves differently. Its radar echo includes a bright, uneven streak that stretches beyond the rim, a signature that scientists recognize from skylights—holes in ...

Water is essential for all forms of life. From keeping cells hydrated to supporting daily activities, life as we know it depends on it. Animals have evolved a wide variety of ways to collect and move water depending on their environment and body structure. Some use mechanical energy—actively drinking or sucking water—while others rely on passive methods, where the properties of their body surfaces and microstructures naturally move water without extra effort. While active water transport in animals like cats and shorebirds has been studied in detail, passive transport remains less understood. This is partly because measuring the wettability of tiny biological structures and analyzing their surface chemistry is extremely challenging. Yet, passive water transport is fascinating. Certain insects in the Namib Desert, for example, collect water droplets from morning fog using their specially designed hydrophilic–hydrophobic backs. Australian lizards guide water to their mouths through groov...

In today’s fast-paced world, fatigue and stress have become silent health risks affecting millions of people. Studies show that nearly one in three employees experience burnout, making it a serious global concern. Fatigue not only reduces productivity but also increases the risk of accidents, especially in professions where constant alertness is essential. However, detecting fatigue accurately has always been a challenge because most methods rely on self-reported surveys, which are subjective and not suitable for real-time monitoring. Now, a groundbreaking innovation from researchers at the National University of Singapore offers a powerful solution. Scientists have developed a smart wearable sensor that can accurately detect fatigue and stress from body signals—even while a person is moving. The Challenge with Current Wearables Wearable devices like smartwatches already track heart rate and other health indicators. These signals are closely linked to the autonomic nervous system, whic...

The universe never stops surprising us. Just when scientists think they understand how stars are born, live, and die, a new discovery challenges everything. Recently, astronomers have identified a completely new class of star remnants—objects that behave in ways never seen before. This discovery not only deepens our understanding of the cosmos but also raises exciting new questions about how stars evolve. The Life and Death of Stars To understand this discovery, we first need to know how stars end their lives. Stars like our Sun will eventually run out of fuel after billions of years. When that happens, they shed their outer layers and shrink into a dense core known as a white dwarf . A white dwarf is incredibly compact—imagine packing the mass of the Sun into a body the size of Earth. These remnants slowly cool over time and usually remain quiet and stable. However, things become far more interesting when stars are not alone. Binary Systems: When Stars Interact For a long time, scient...

In the world of modern science, some of the biggest breakthroughs come from the smallest structures. One such exciting development is the use of lipid nanotubes (LNTs) —extremely tiny, tube-shaped structures made from lipid molecules. These microscopic tubes may soon play a major role in chemistry, biology, and medicine by acting as ultra-small platforms where important reactions can take place. A research team from Japan, led by Hiroshi Frusawa, has developed a new and efficient way to organize these nanotubes into structured arrays. This advancement could open the door to powerful nanodevices capable of performing complex tasks in extremely small spaces. What Are Lipid Nanotubes? Lipid nanotubes are hollow, cylindrical structures formed by lipid molecules—the same type of molecules that make up cell membranes. These nanotubes are incredibly small: Inner diameter: about 10 nanometers Length: around 10 micrometers Inside each nanotube is a tiny hollow space that can hold liquids. This ...