The Landsat Project is the longest-running enterprise for acquisition of imagery of the earth from space. Landsat 7, was launched in 1999 for applications in agriculture, geology, forestry, regional planning, education, mapping, & global change research. At over 40 years, the Landsat series of satellites provides the longest temporal record of moderate resolution multispectral data of the Earth’s surface on a global basis.
The Landsat record has remained remarkably unbroken, proving a unique resource to assist a broad range of specialists in managing the world’s food, water, forests, and other natural resources for a growing world population. It is a record unmatched in quality, detail, coverage, and value.
Original URL: https://landsat7.usgs.gov/about-landsat