Answer: National Aeronautics and Space Administration (NASA) and Indian Space Research Organisation (ISRO)
Notes: NISAR (NASA-ISRO Synthetic Aperture Radar) is a joint satellite mission by the National Aeronautics and Space Administration (NASA) and the Indian Space Research Organisation (ISRO). It is set to be launched in June 2025 from the Satish Dhawan Space Centre in Andhra Pradesh using the Geosynchronous Satellite Launch Vehicle Mark II (GSLV Mk II). This is the first radar-based Earth observation mission jointly developed by India and the United States. NISAR will map the entire Earth’s surface every 12 days to provide frequent and accurate data. It will track ecosystem changes, ice movements, vegetation shifts, sea level rise, groundwater levels, and natural disasters like earthquakes, volcanoes, tsunamis, and landslides.
