Landsat satellites are a series of Earth-observing satellites that have been capturing images of the planet's surface since the early 1970s. They provide valuable data for monitoring land use, agriculture, forestry, and environmental changes. Each satellite is equipped with sensors that can detect different wavelengths of light, allowing scientists to analyze various features of the Earth's surface. The Landsat program is a collaboration between NASA and the U.S. Geological Survey, and it has significantly contributed to our understanding of the Earth's ecosystems. With a focus on long-term data collection, Landsat satellites help researchers track changes over time, making them essential tools for environmental management and planning.