Landsat 9 has two instruments onboard that capture data. One, called the Operational Land Imager 2, senses nine wavelengths of visible and infrared light. The other is the Thermal Infrared Sensor 2, which can detect subtle variations in temperature. When combined, the two will be able to provide clues about agricultural health, water use and quality, wildfire size and severity, glacial health, forest health and the evolution of urban areas.
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