Seventeen days after launch from India’s Satish Dhawan Space Centre, NASA-ISRO’s NISAR satellite has successfully unfurled its 39-foot radar antenna in low Earth orbit. The antenna will help track Earth’s changes with unprecedented precision.

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• NISAR radar antenna fully deployed on Aug 15, 2025
• Largest reflector ever used in a NASA mission, 39 feet wide
• Launched July 30, 2025, from Satish Dhawan Space Centre, India
• Joint mission between NASA and ISRO
• Tracks ice sheets, glaciers, land deformation, forests, wetlands
• Aids disaster response, infrastructure monitoring, agriculture
• Features two radar systems: L-band and S-band
• Reflector unfolded umbrella-like in 37 minutes
• SAR technology enables high-resolution Earth imagery
• Mission data to benefit global communities, food security, disaster readiness