"Satellites Use Radar for Detailed Earth Observation"

Synthetic aperture radar (SAR) technology, once limited to large commercial satellites, is now being deployed on constellations of inexpensive nanosatellites, enabling round-the-clock, high-resolution Earth observation through clouds and darkness. This advancement, driven by start-ups like Iceye and Capella Space, promises significant benefits for environmental monitoring, disaster response, and military applications, although concerns about privacy and potential misuse remain.