Fri Nov 28 19:36:00 UTC 2025: Here’s a summary and a news article rewrite based on the provided text:

Summary:

The NASA-ISRO Synthetic Aperture Radar (NISAR) satellite, launched in July 2025, has entered its science phase. This milestone follows successful launch, deployment, and commissioning phases, including the deployment of its large antenna. NISAR is designed to collect all-weather, day-and-night Earth observation data for a variety of applications. Initial data analysis shows promising results in areas like agriculture, forestry, and hydrology. The mission represents a collaborative effort between ISRO and NASA.

News Article:

NASA-ISRO Earth Observation Satellite Enters Science Phase, Promising Enhanced Environmental Data

Bengaluru, India – November 29, 2025 – The NASA-ISRO Synthetic Aperture Radar (NISAR) satellite has officially begun its five-year science phase, the Indian Space Research Organisation (ISRO) announced Friday. This marks a crucial step for the joint U.S.-India mission designed to provide comprehensive, all-weather, day-and-night Earth observation data.

Launched in July from the Satish Dhawan Space Centre in Sriharikota, NISAR is the first satellite co-developed by ISRO and NASA. The satellite’s primary function is to provide detailed radar imagery of the Earth’s surface, enabling a wide range of applications from agricultural monitoring and forestry management to tracking glacial melt and predicting natural disasters.

A key milestone reached before the science phase was the successful deployment of NISAR’s massive 12-meter diameter antenna reflector, a critical component for both ISRO’s S-Band and NASA’s L-Band Synthetic Aperture Radar (SAR) payloads. The complex unfolding of the antenna and its 9-meter boom took place over several days in August.

ISRO reports that since its first data acquisition on August 19, NISAR has been regularly imaging the Indian landmass and global calibration sites. Early analysis of the data has revealed its potential for significantly advancing studies in agriculture, forestry, geoscience, hydrology, and polar/Himalayan ice.

“During this phase, the science orbit will be maintained via regular maneuvers, scheduled to avoid or minimize conflicts with science observations. Extensive calibration and validation activities will take place,” ISRO said in a statement.

NISAR’s data is expected to provide invaluable insights into Earth’s changing environment and contribute to a better understanding of our planet.

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