<p>➀ NASA and Aloft Sensing developed HALE InSAR, a lightweight radar system using phased-array antennas for millimeter-level surface deformation detection; </p><p>➁ The system operates without GPS, relying on onboard algorithms, and is tested on high-altitude platforms for environmental monitoring; </p><p>➂ Future applications include satellite deployment for broader Earth observation and disaster forecasting.</p>