INDIA-US ISRO-NASA SATELLITE LAUNCHED TO MONITOR EARTH CHANGES

The joint ISRO–NASA NISAR satellite was successfully launched from the Satish Dhawan Space Centre on July 29th Wednesday evening. Weighing 2,392 kg, Nisar is the most advanced radar satellite yet launched by NASA, capable of detecting minute changes in land, sea, glaciers, and ice sheets.
Using dual-frequency radar (L-band from NASA and S-band from ISRO), Nisar will orbit in a sun-synchronous polar path, revisiting the same ground every 12 days. It is designed to detect shifts as small as a few centimeters, enabling early warning for events like earthquakes, landslides, and forest fires.
Costing $1.5 billion and over a decade in development, the mission serves not only India and the U.S. but the global community, feeding data into climate programs and disaster preparedness efforts. ISRO Chair V. Narayanan hailed it as a symbol of India’s rising leadership in space. India’s Science Minister described Nisar as its scientific handshake with the world.