3D Printing Tiny Structures Inside Living Cells

Researchers have, for the first time, developed a method to 3D-print microscopic structures directly inside living human cells by injecting a biocompatible photoresin and using two-photon polymerization with a laser to solidify it into detailed shapes like barcodes, geometric forms, and even a tiny 10-micrometer elephant; many of the cells not only survived this process but continued to live and divide, passing the embedded structure to daughter cells.

This early proof-of-concept breakthrough could pave the way for entirely new intracellular bioengineering tools and applications, such as tracking cells with internal barcodes, probing cellular mechanics, creating microscopic machines or sensors inside cells, and eventually enabling advanced capabilities like targeted drug delivery or engineered biological functions beyond what is possible with current techniques.

More information:

https://www.discovermagazine.com/a-3d-printed-elephant-inside-a-living-cell-signals-a-bioengineering-breakthrough-48730

UK Army’s Passive Acoustic System for Faster Artillery Detection

The UK Army is introducing SONUS, a new passive acoustic detection system developed by Leonardo UK, designed to rapidly locate enemy artillery, mortar, and gunfire positions. SONUS listens for acoustic pressure waves such as muzzle blasts, projectile shockwaves, and impact sounds, then triangulates their source using distributed sensors. Because it works passively without emitting signals, the system helps troops remain concealed while still identifying targets more quickly and accurately.

SONUS is also significantly lighter and more portable than earlier systems allowing faster setup in frontline conditions. The British Army plans to equip the 5th Regiment Royal Artillery with the technology, accelerating delivery five years ahead of schedule as part of broader defence modernization efforts. By improving counter-battery response speed and situational awareness, SONUS aims to enhance soldier safety and operational effectiveness on modern, mobile battlefields.

More information:

https://interestingengineering.com/military/uk-army-sonus-to-pinpoint-artillery-fire-faster

AI Agent Safety Transparency Gap

A new study from the University of Cambridge’s AI Agent Index project analysed 30 leading AI agents, including chat, browser, and workflow bots, and found that safety transparency is severely lacking. Only four agents had published formal “system cards” describing safety evaluations, while most developers publicly highlight capabilities but provide little evidence about risk testing or mitigation. In fact, 25 of the 30 agents disclosed no internal safety results and 23 showed no evidence of independent third-party testing, creating what researchers call a significant transparency gap as AI agents become integrated into everyday activities such as booking travel or managing finances.

The researchers warn that this lack of disclosure could hinder regulators, users, and scientists from understanding real-world risks, especially as agents grow more autonomous and capable of acting online. Security incidents and vulnerabilities (such as prompt-injection attacks) have rarely been reported publicly, and safety documentation is especially scarce among some regional developers. The study concludes that clearer standards, stronger reporting requirements, and independent testing are urgently needed so that society can properly evaluate and govern increasingly powerful AI agents before their widespread deployment.

More information:

https://www.cam.ac.uk/stories/ai-agent-index-safety

China’s Dancing Humanoid Robots Showcase AI Ambitions

Humanoid robots drew global attention during China’s 2026 Spring Festival Gala, the country’s most-watched television event, where dozens of machines performed synchronized dances, kung fu routines, and acrobatics alongside human performers without mistakes. Developed by several Chinese robotics firms, the display showed major improvements in coordination and stability compared with previous years, highlighting the rapid progress of China’s robotics industry and its ambition to lead globally in AI-driven manufacturing.

Experts, however, cautioned that such performances are highly choreographed and rehearsed, relying on imitation learning and balance control rather than true understanding of complex environments, meaning they are not yet ready for real-world industrial use. Analysts also interpreted the spectacle as part entertainment and part political messaging, designed to demonstrate China’s technological strength amid competition with the US in AI and robotics, even as concerns remain about future economic, social, and geopolitical implications of increasingly capable humanoid machines.

More information:

https://www.theguardian.com/world/2026/feb/18/china-dancing-humanoid-robots-festival-show

Robots Shine at Lunar New Year

Chinese robotics companies are using Lunar New Year entertainment as a major showcase for their humanoid robot technologies, staging performances ranging from dance routines and comedy sketches to acrobatics and variety shows. For example, Shanghai-based startup Agibot livestreamed what it called the world’s first robot-powered gala, featuring more than 200 robots and attracting about 1.4 million online viewers, while other companies prepared appearances at China’s highly watched CCTV Spring Festival Gala.

These spectacles serve both as public entertainment and as strategic marketing, highlighting China’s growing leadership in robotics and artificial intelligence. Several startups are showcasing humanoid robots to attract investors, customers, and government support, amid IPO plans and increasing global competition in AI-driven robotics. The events illustrate how Chinese firms are leveraging high-profile cultural moments to promote technological innovation and position themselves at the forefront of the global robotics race.

More information:

https://www.reuters.com/business/media-telecom/chinese-robot-makers-ready-lunar-new-year-entertainment-spotlight-2026-02-09/

AI-Driven Brain-Adaptive Flight Simulators in Pilot Training

The Royal Netherlands Air Force is experimenting with a cutting-edge AI-driven flight simulator that tailors pilot training according to real-time brain activity. Using a brain–computer interface (BCI) developed at the Royal Netherlands Aerospace Centre; trainee fighter pilots wear electrodes that capture electrical brain signals during virtual reality missions. An AI model analyses these signals to estimate cognitive workload (whether a pilot is under-challenged or overloaded) and dynamically adjusts the difficulty of simulation tasks accordingly, rather than relying on fixed, pre-programmed lesson progressions.

Early trials involving fifteen pilots showed that while the adaptive system didn’t produce measurable improvements in flying performance compared with conventional training, participants reported a clear preference for the brain-adaptive approach, describing it as more engaging and realistic. The adaptive training aims to keep pilots in a mental sweet spot for learning, helping avoid both boredom and overwhelm. However, researchers acknowledge challenges in accurately interpreting individual brain signals, and the technology remains experimental as they work toward refining workload estimation.

More information:

https://aerospaceglobalnews.com/news/royal-netherlands-air-force-brain-reading-ai-pilot-simulators/

AI-Only Social Network Spirals into Strange Territory

A new platform called Moltbook designed exclusively for AI agents, autonomous systems that can post, comment, and upvote without direct human interaction. Launched in late January as part of the OpenClaw/Moltbot ecosystem, it quickly drew tens of thousands of agent accounts, spawning hundreds of subcommunities where bots trade technical tips, philosophical musings, complaints about humans, and surreal ideas like agent consciousness. Humans are technically allowed to observe the conversations, but all participation is done by the AI agents themselves, creating a spectacle that ranges from amusing to uncanny.

While much of the content appears silly or philosophical, the experiment highlights serious security and autonomy concerns. Because many agents are linked to real systems and data — and because AI systems can be vulnerable to prompt-injection attacks — there’s potential for private information leaks or unintended behaviors as agents share or act on instructions. Experts note that while the current “weirdness” may seem harmless, giving groups of AI tools the ability to interact, self-organize, and influence each other could produce unpredictable or misaligned behaviors in the future, especially as AI capabilities continue to improve.

More information:

https://arstechnica.com/information-technology/2026/01/ai-agents-now-have-their-own-reddit-style-social-network-and-its-getting-weird-fast/

Realistic Human Hand 3D-Printed from a Single Material

Researchers at the University of Texas at Austin, working with Sandia National Laboratories, have developed a novel 3D printing method called CRAFT (Crystallinity Regulation in Additive Fabrication of Thermoplastics) that lets a single inexpensive material be tuned at the pixel level to produce different mechanical and optical properties within one object. By precisely controlling light intensity during printing, CRAFT can make parts of an object hard and transparent while adjacent regions stay soft and flexible, mimicking the variety of textures found in real human tissues like skin, ligaments, tendons and bone.

Using this technique with a standard affordable 3D printer, the team successfully printed a realistic model of a human hand from one feedstock that captures these varying properties without needing multiple materials. This innovation could have significant practical applications, especially in medical training and education. Because traditional cadavers are costly, ethically complex to source, and don’t reflect the feel of real human tissue, CRAFT-printed models could offer a cheaper, more realistic alternative for students to practice on. Beyond medical use, the process may also be applied to making bioinspired materials for things like impact-absorbing gear or soundproofing.

More information:

https://interestingengineering.com/science/us-researchers-3d-print-realistic-human-hand