Landsat

Landsat is the world's longest-running Earth observation satellite program, jointly developed by NASA and the U.S. Geological Survey (USGS). Since the launch of the first Landsat satellite in 1972, the program has continuously captured high-resolution, multispectral images of the Earth's surface, creating one of the most valuable archives of satellite data available. Landsat imagery enables scientists, researchers, governments, and organizations to monitor environmental changes, analyze land use and land cover patterns, assess agricultural productivity, manage forests, monitor water resources, and support urban planning. The program also plays a critical role in disaster management by helping detect floods, wildfires, droughts, and other natural hazards. With consistent, reliable, and freely accessible data collected over decades, Landsat allows users to study long-term changes in landscapes, ecosystems, and climate, making it an essential tool for sustainable resource management, environmental conservation, and scientific research worldwide.