The National Institute of Information and Communications Technology (NICT) has successfully demonstrated 2 Tbit/s Free-Space Optical (FSO) communication using small optical communication terminals that can be mounted on satellites and HAPS, marking a world first for this technology.

This experiment involved horizontal free-space optical communication between two types of small portable optical terminals developed by NICT: a high-performance FX (Full Transceiver) installed at NICT Headquarters (Koganei, Tokyo) and a simplified ST (Simple Transponder) installed at an experimental site 7.4 km away (Chofu, Tokyo). Despite the difficult conditions of an urban environment with atmospheric turbulence that disrupts laser beams, the system maintained a stable total communication speed of 2 Tbit/s via Wavelength Division Multiplexing (WDM) transmission of 5 channels (400 Gbit/s each). This is the first time in the world that terabit-class communication has been realized using terminals miniaturized enough to be mounted on satellites or HAPS.

Moving forward, NICT plans to further miniaturize the terminals for implementation onboard a 6U CubeSat. NICT aims to conduct free-space optical communication demonstrations at speeds of up to 10 Gbit/s between a Low Earth Orbit (LEO) satellite (altitude approx. 600 km) and the ground in 2026, and between a satellite and HAPS in 2027. Through these experiments, NICT will demonstrate compact, ultra-high-speed data communication capabilities and pave the way for the realization of Beyond 5G/6G Non-Terrestrial Networks (NTN).

A joint team from UOsaka has uncovered the core principles of the loss maximization in rotor-driven gas-liquid two-phase flows. Performing numerical simulations on the supercomputer "SQUID", they identified the causes as direct collisions between the rotor and the liquid surface and pressure imbalances around the rotor. The findings suggest that, in a resonant state, the enhanced fluid motion is drawn toward the front of the rotor, and the flow instability is intensified behind it. The insights from this research would open the possibility of improving energy efficiency, enhancing reliability and lifespan, and providing new design guidelines for various industrial applications.

Using mobile phone traces, transit data, and spatial modelling, SUTD researchers produced one of Singapore’s most detailed district-level maps of transport emissions that offers new insights into how urban form shapes daily mobility.

Recently, a research team led by Professor Xie Huiqi at Sichuan University conducted a systematic review of dual-function biomaterials that combine anti-tumor and bone regeneration capabilities for postoperative osteosarcoma treatment. The article categorizes existing research findings into three design strategies: conventional dual-function strategies, enhanced anti-tumor strategies, and temporally regulated strategies. It further explores their design principles, therapeutic efficacy, and potential for clinical translation. This review aims to provide insights for establishing an integrated "anti-tumor and bone regeneration" treatment model and offers perspectives on future research directions in the field. The related work, entitled "Dual-Function Biomaterials for Postoperative Osteosarcoma: Tumor Suppression and Bone Regeneration," has been published in Research.

Researchers have developed a novel AI-driven framework using the XGBoost algorithm to accurately evaluate the skid resistance of asphalt pavements under various conditions. Published in Smart Construction, this breakthrough achieves over 90% prediction accuracy, offering a smarter and more adaptive approach to enhancing road safety and maintenance.

An Osaka Metropolitan University-led research team conducted a review that examined the theoretical foundations of Artificial Superintelligence and explored how misaligned AI systems could optimize for wrong objectives, leading to patient harm and systemic failures.

Cu-Zn-Ce ternary interface prepared through a urea-assisted grinding strategy significantly enhances catalytic performance for CO₂ hydro genation to methanol.