Satellites
Landsat 9
An Earth-observing satellite continuing the Landsat record of land-surface measurements.
Why it matters
Repeated observations support research on land use, water, vegetation and environmental change.
Specific hardware / satellites
Overview
Landsat observations support comparison of landscapes across time. Calibrated measurements are needed to distinguish real change from instrument differences. Different spectral bands reveal different surface properties.
Educational reference, reviewed . This page is not a live mission-status report.
How it works
Optical and thermal sensors record Earth in separate wavelength bands as the spacecraft follows its orbit. Ground processing turns measurements into consistent data products.
Why it matters
Repeated observations support research on land use, water, vegetation and environmental change.
Key facts & specifications
Values apply only to the hardware or configuration described. Unverified measurements are omitted.
- Measurement
- Land imaging
NASA · Landsat ↗ - Setting
- Earth orbit
NASA · Landsat ↗
Illustration gallery
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Cosmic Civilizations · original educational vector illustration
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Real-world applications
- Landsat land monitoring
Read the primary references for the original mission context and technical limits.
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Sources & further reading
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