There are over 36,500 pieces of space debris of larger than 10 cm in orbit according to statistical model orbit provided by European Space Agency’s Space Debris Office at European Space Operations Centre in Darmstadt, Germany. Any of those debris can pose a threat to operational satellites. Active debris removal (ADR) is conducted to solve the above problems for stabilizing the space debris environment. Unfortunately, the angular velocity of space debris exceeds the maximum angular velocity of 4 to 5 deg/s that can be directly captured by a robotic arm. Therefore, to stabilize the debris environment, the first task, i.e., de-tumbling tasks, is to reduce the initial angular velocity of the debris by applying an external torque. To ensure the safety of the de-tumbling tasks avoiding collision between the de-tumbling device and the uncooperative space target, many contactless methods have been studied. Among them, the contactless method based on electromagnetic eddy current method has received increasing attention due to the advantages of pollution-free and high safety performance.

Infertility is a significant global health challenge impacting millions of families worldwide. Utilizing data from the Global Burden of Disease (GBD) 2021 study, a Chinese-led study examined global, regional, and national infertility prevalence and years lived with disability (YLDs) from 1990 to 2021. The study revealed a sustained increase in the global burden of infertility over the three decades, with a higher and more rapidly growing burden among women, alongside notable regional disparities. These findings could serve as a critical evidence base for developing evidence-based policies and resource allocation strategies to address the infertility burden.

The 2024 report on China’s gastroenterology and digestive endoscopy, based on national databases, highlights increased early cancer detection, optimized care for priority diseases, and enhanced endoscopy quality, with mixed cost trends for inflammatory bowel disease.

A Perspective in National Science Review outlines a new paradigm for fully automated processor chip design. By combining domain-specific large language models, automatic correctness repair and performance-driven search, the framework aims to automatically generate reliable, high-performance processors tailored to diverse applications.

Local reaction-global diffusion enables the effective in-situ Mg-vacancy elimination during spark plasma sintering, promoting the remarkable enhancement in carrier mobility and figure-of-merits with record-high power factors. This unlocks the potential in high-performance thermoelectric power generation and cooling applications of Mg₃(Sb,Bi)₂-based thermoelectrics.

Inspired by hierarchical structures found in nature, a research team from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences developed a novel bio-inspired laminated ZTE metal matrix composite that overcomes these limitations. The design draws inspiration from the "brick-and-mortar" laminated structure of abalone nacre, which is known for its exceptional strength and toughness, as well as the thin inner membranes of bamboo stems that enable efficient transport of water and nutrients.

Researchers have developed a fiber neural network system that performs intelligent processing of optical communication signals directly in the light domain. This approach integrates optical transmission with optical computing, significantly improving processing efficiency and reducing power consumption for tasks like modulation format recognition.