Scientists from Israel and Germany have completed integration and testing of the first nanosatellite in the CloudCT network, an innovative space mission designed to improve climate predictions through three-dimensional imaging of clouds. The satellite is scheduled for launch from California in June 2026, with ten additional satellites planned for 2027 if the precursor mission succeeds.

Led by Prof. Ilan Koren of the Weizmann Institute of Science, Prof. Yoav Schechner of the Technion – Israel Institute of Technology, and Prof. Klaus Schilling of Zentrum für Telematik, the project introduces a novel cloud observation method inspired by computed tomography (CT) used in medicine. The system combines simultaneous multi-angle satellite imaging, polarization-sensitive cameras, and AI-based analysis to reconstruct the internal structure and microphysical properties of clouds in unprecedented detail.

Researchers say the mission addresses major uncertainties in climate and weather modeling by capturing small cloud formations that are difficult to observe with existing remote-sensing technologies. The miniature precursor satellite weighs about 4 kilograms and must autonomously orient itself toward target clouds with extremely high precision.

The project was supported by a European Research Council (ERC) Synergy Grant.

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