Science

NASA's CASALS instrument bridges gaps in 3D maps of Earth's surface

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 21/10/2026, 18:25:24 UTC.

Briefings

NASA's Goddard Space Flight Center developed the CASALS instrument to replace blind spots in Earth's surface mapping using lidar. Unlike previous systems that mechanically steer lasers, CASALS steers light by changing its wavelength, creating a continuous 3D ground swath. This technology aims to provide detailed surface feature mapping without mechanical movement, supported by ESTO. The system is currently in development and does not yet have operational deployment data.

Key points

• CASALS uses wavelength shifting to steer laser light instead of mechanical mirrors, generating a continuous 3D ground swath.
• The instrument eliminates blind spots between lidar data lines to enable detailed Earth surface mapping.

Context

This finding addresses a critical gap in Earth observation by enabling continuous 3D surface mapping without mechanical laser steering. It represents a significant advancement in remote sensing technology for environmental monitoring.

Limitations

Evidence is limited to development phase; no operational deployment data, performance metrics, or deployment timeline are provided.

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