🌍 NASA & ISRO's NISAR: A Satellite That Sees Beneath the Surface

NISAR (NASA-ISRO Synthetic Aperture Radar) is one of the most ambitious Earth observation satellites ever built—and it's a product of global collaboration between NASA and ISRO. While it hasn’t launched yet, it’s already making headlines for the right reasons.

What sets it apart?

NISAR is the first radar imaging satellite to use dual frequencies—the L-band and S-band—to study changes on Earth’s surface with high resolution and accuracy, day or night, in all weather.

Its technology—Synthetic Aperture Radar (SAR)—enables it to simulate a much larger antenna by collecting radar signals while the satellite moves. This makes it capable of tracking:

Earthquakes, landslides, and glacial melts

Underground water depletion

Crop health and soil moisture

Air pollution patterns, like stubble burning

Urban sprawl and deforestation

Even rare earth resources on land and in oceans

This mission will be a powerful eye in the sky for managing disasters, tackling climate change, supporting farmers, and guiding sustainable urban growth.

By bringing together the strengths of NASA and ISRO, NISAR is set to deliver something priceless—data that can drive real change.

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