The Landsat program offers the longest continuous global record of the Earth's surface. The most recent Landsat 7 satellite detects and records blue, green, and red light in the visible spectrum, as well as near-infrared, mid-infrared, and thermal-infrared light. [Read more]

• Type of sensor, passive
• Spatial resolution, 15-60m (Landsat 7, ETM+)
• Eight spectral bands
• Views entire Earth’s surface every 16 days

Applications:  environmental monitoring, regional planning, agriculture, forestry, land use, water resources, natural resource exploration