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In a breakthrough that could transform secure information storage and anti-counterfeiting technology, researchers led by Di Zhao have developed a new family of smart polymers that can change color, alter their fluorescence, and even repair themselves after being damaged . The material responds to different types of light and can produce several visible optical states. This combination of light sensitivity, strong mechanical properties, rapid self-healing and programmable luminescence could open new possibilities for dynamic encryption, optical data storage, UV sensing and light-written information . The Challenge of Making Smarter Optical Materials As digital information continues to grow, scientists are looking for new ways to store and protect information. Conventional systems often rely on electronic devices, while optical technologies can potentially provide high-density storage and multiple layers of security. One promising approach is the use of photoluminescent materials —mater...

As the world becomes increasingly dependent on digital information, the amount of data we need to store is growing at an extraordinary rate. From artificial intelligence and scientific research to videos, photographs and cloud computing, modern society is producing enormous quantities of digital information every day. But storing this information is not simply about increasing capacity. Future storage technologies also need to be fast, compact, reliable, energy-efficient and capable of preserving data for extremely long periods . Now, researchers have demonstrated a fascinating approach that could address several of these challenges at once: using diamond as a high-density optical data storage medium . A team led by Jingyang Zhou and researchers from the University of Science and Technology of China developed a diamond-based storage system capable of storing information at a density of 14.8 terabits per cubic centimetre . The researchers also demonstrated extremely fast writing, with a...

Sorting data may sound like a simple computer operation, but it is one of the most fundamental and frequently used tasks in modern computing. From arranging numbers and searching databases to optimizing algorithms and processing information for artificial intelligence, computers constantly need to determine the order of large amounts of data. However, traditional sorting systems face an important limitation: moving data between memory and processing units takes time and consumes energy . Now, researchers led by Lianfeng Yu have developed a new approach that could fundamentally change how computers sort information. Their experimental sort-in-memory system uses memristor arrays to sort data without relying on conventional comparison operations . The approach could significantly improve the speed, energy efficiency and hardware efficiency of sorting. The Problem With Traditional Computer Sorting Most conventional computers are based on the von Neumann architecture , in which memory and ...

Imagine a black hole so tiny that it could be smaller than a microscopic particle, yet it may have survived almost since the beginning of the universe. Now imagine that this strange object does not behave entirely like an ordinary black hole because gravity can reach into a hidden fifth dimension. This is the intriguing possibility explored in a new theoretical study published in Physical Review D . The research investigates how primordial black holes (PBHs) might have formed and survived if our universe contains an additional, hidden spatial dimension. There is an important catch: primordial black holes have never been confirmed to exist , and the proposed extra dimension is also hypothetical. The study therefore does not announce the discovery of new black holes. Instead, it explores what physics might look like if these ideas turn out to be correct. What Are Primordial Black Holes? Most black holes we know about are thought to form when massive stars collapse at the end of their l...

Imagine a star reaching the end of its life, shedding much of its material into space—and then, from those leftovers, a completely new planet begins to form. Astronomers may have found exactly such a remarkable world. A team led by researchers at the University of Warwick has identified what could be the first known second-generation planet orbiting a white dwarf . Unlike ordinary planets, which form alongside their stars when a planetary system is young, this unusual planet appears to have formed after its original star died , using material expelled during the star’s final stages. If confirmed, the discovery could fundamentally change our understanding of how planets can form and survive around dying stars. A Planet Born After Its Star Died Most planets we know about are called first-generation planets . They form from a disk of gas and dust surrounding a young star. Over millions of years, this material gradually comes together to create planets, moons, asteroids and other objects. ...

Building a permanent human settlement on Mars would require solving one enormous problem: how to construct strong shelters millions of kilometres from Earth without transporting huge amounts of building material. A new research concept from Chinese scientists offers a fascinating possible solution. Researchers have developed an experimental “living cement” made using engineered yeast, gelatin and soil-like material. The technology could potentially transform Martian regolith—the loose dust, sand and broken rock covering the planet’s surface—into a printable construction material. If the approach can eventually be adapted to real Martian conditions and scaled up, future missions might need to transport only biological starter materials and construction equipment rather than enormous quantities of concrete or other building supplies. A New Kind of Biological Cement Traditional concrete requires cement, aggregates, water and considerable energy to manufacture. On Mars, producing conventi...

The human body has a remarkable way of connecting tissues with very different properties. One of the best examples is the bone-tendon interface —the small region where rigid bone connects to flexible tendon. Bone is hard and designed to withstand heavy loads, while tendons are softer and flexible, allowing muscles to transfer forces to bones. Despite their differences, these tissues connect smoothly over a very short distance without creating a weak point. Now, researchers at TU Delft have developed a new 3D-printing and design strategy that could help engineers reproduce this natural connection. Their approach combines two different types of engineered structures to create a compact and strong transition between stiff and flexible materials. The research was published in Nature Communications in 2026. Why Connecting Hard and Soft Tissues Is So Difficult Creating an artificial structure that behaves like both bone and tendon is a major engineering challenge. A direct connection betwe...