StellarRescue is a compact radar device that helps firefighters locate trapped individuals during indoor rescue operations. Using Synthetic Aperture Radar (SAR) technology, it penetrates smoke, flames, and debris - environments where thermal and optical tools fail. The device identifies human presence and movement by analyzing radar reflections with on-device AI, detecting breathing or limb motion in real time. It displays a live indoor map and highlights victims or recent activity, even without GPS or visibility. The 900g system includes a planar array antenna, FPGA-based signal processing, and a durable, heat-resistant shell. Designed for handheld use or drone mounting, it enables responders to assess hazards before entry and navigate complex spaces quickly. StellarRescue reduces rescue times, improves responder safety, and is deployable by any fire unit with minimal training. Originally developed from aerospace radar systems, it brings advanced sensing technology directly to field rescue missions.