NASA-ISRO Joint Satellite NISAR Scheduled for Launch on July 30

The NISAR satellite, jointly developed by NASA and ISRO, is scheduled to launch on July 30 from Sriharikota. It will orbit the Earth every 12 days, providing high-resolution images using dual-frequency radar—NASA’s L-band and ISRO’s S-band. This unique satellite can detect changes as small as 1 cm and operate in all weather, day or night. NISAR will monitor glaciers, storms, vegetation, and earthquakes, aiding climate change and disaster studies. Costing $1.5 billion, it’s the world’s most expensive Earth observation satellite. Technical delays, including antenna issues, postponed its launch. ISRO contributed ₹469.4 crore and will handle launch costs.