# NISAR (NASA-ISRO Synthetic Aperture Radar) satellite can track real-time changes across Earth's surface from orbit.

*aerospace · news · 2026-05-01 · Phys.org*

## Key points

- NISAR satellite captured real-time ground subsidence across Mexico City between October 2025 and January 2026.
- NISAR's L-band radar can detect land subsidence even in densely vegetated or cloud-covered regions.
- Initial NISAR data revealed some Mexico City areas are sinking over 2 centimeters per month.
- Yellow and red areas in NISAR imagery are noise, expected to decrease with continued data collection.
- NISAR's global coverage is expected to reveal similar land subsidence issues worldwide.

**Companies:** NASA, ISRO
**Countries:** United States, India, Mexico

[Read the full story on Phys.org](https://phys.org/news/2026-04-usindian-space-mission-extreme-subsidence.html)

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