NISAR satellite sees Earth's changes clearly

The NASA-ISRO Synthetic Aperture Radar (NISAR) satellite, a joint Earth observation mission, has successfully launched, promising unprecedented data on Earth's surface changes. NISAR utilizes dual-frequency radar (L-band by NASA, S-band by ISRO) for high-resolution, all-weather imaging. It will monitor land deformation, ice sheets, forest biomass, and natural disasters, enhancing climate resilience and disaster response. The mission, a significant collaboration between the US and India, cost approximately $1.2 billion and took eleven years to develop, overcoming engineering and pandemic-related challenges.