NASA-ISRO NISAR Satellite Sends First Images of Earth

The NASA-ISRO Synthetic Aperture Radar (NISAR) Earth-observing satellite has transmitted its first images of Earth’s surface, marking a significant milestone as the mission moves toward full science operations later in 2025.

High-Resolution Imaging Capabilities

Launched by ISRO on July 30, 2025, NISAR is a joint mission designed to provide unique and actionable data for applications such as disaster response, infrastructure monitoring, and agricultural management.

First Image Captured

On August 21, the satellite’s L-band Synthetic Aperture Radar (SAR), developed by NASA’s Jet Propulsion Laboratory, captured Mount Desert Island on the Maine coast.

• The L-band radar can resolve objects as small as 15 feet (5 metres).
• The image clearly shows narrow waterways and surrounding islets, demonstrating the satellite’s ability to deliver highly detailed Earth observations.

Significance

The first images highlight NISAR’s potential to enhance decision-making across multiple sectors by providing timely and precise data on Earth’s changing environment.