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NISAR Mission UPSC, NASA-ISRO Earth Observation UPSC, and Synthetic Aperture Radar UPSC are important topics under GS3 (Science & Technology, Space Collaboration) and UPSC current affairs in English. This mission marks a major Indo-US collaboration in the field of space-based Earth monitoring.

🔹 What is NISAR UPSC?

Full form: NASA-ISRO Synthetic Aperture Radar

A joint Earth observation satellite mission between ISRO (India) and NASA (USA)

Designed to use dual-frequency radar (L-band & S-band) to monitor Earth’s surface changes

🔹 Objectives of NISAR:

Monitor the Earth's entire surface twice every 12 days

Detect changes in:

Earthquakes

Landslides

Glacier movements

Ground deformation

Agriculture and forest dynamics

Contributes to disaster management, environmental protection, and climate research

🔹 Significance of NISAR:

First radar satellite to use dual-frequency SAR

Represents high-level cooperation in space tech between India and the US

Useful for early warning systems, resource mapping, and scientific research

This video explains:

What is NISAR Mission UPSC

Roles of ISRO and NASA

Importance of Synthetic Aperture Radar (SAR) technology

Relevance to earth sciences and climate resilience

Repeat and revise: NISAR Mission UPSC, NASA ISRO Collaboration UPSC, Earth Observation UPSC

UPSC 2026 Current affairs PDF: www.civilsacademy.com



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