Kanazawa University, Japan – Researchers led by Associate Prof. Md. Shahiduzzaman and Prof. Tetsuya Taima in collaboration with Prof. Katsuhiro Maeda and Prof. Hiroshi Hasegawa developed a one-step recycling method for flexible perovskite solar cells. The technology enables highly efficient recovery of toxic Pb (99.7%) and valuable metals including Au and In from end-of-life devices. This environmentally responsible approach reduces environmental risks, conserves valuable resources and supports sustainable commercialization of next-generation perovskite solar energy technologies.

Imaging planets orbiting nearby stars is a key goal of NASA’s planned Habitable Worlds Observatory. Detecting these faint worlds requires processing techniques that remove the overwhelming glare of their host stars. Now, researchers have investigated how small optical changes in the telescope affect the performance of these methods. Their simulations show even tiny shifts between mirror segments can make planets difficult to detect, providing important guidance for the design of future telescope structures and instruments.

A new commentary in Engineering presents a clear four-stage roadmap for shifting the global energy system toward carbon neutrality. Unlike past energy transitions, this transformation demands joint advances in technology, policy, and society. It also introduces the T-ESGO framework to integrate energy, material, carbon, and information flows, stressing innovation, cross-disciplinary work, and global cooperation to drive practical, sustainable progress.