The Space Shuttle Endeavour was launched on mission STS-99 to carry out the Shuttle Radar Topography Mission (SRTM), one of NASA's most significant earth science missions. The primary objective of STS-99 was to generate detailed topographical maps of the Earth, specifically to measure the changing geometry and elevation of the land. This mission was unique as it utilized a synthetic aperture radar that operated from space, allowing for the collection of three-dimensional measurements across vast areas of the planet. The technology used in the SRTM included the mapping of regions previously uncharted, enhancing global data sets, particularly in remote and inaccessible locations.Endeavour's launch occurred from Kennedy Space Center in Florida, where it entered low Earth orbit to conduct a series of radar imaging sessions over various terrains. The mission was manned by a diverse crew, including notable astronauts such as Commander Charles D. R. Camarda, Pilot Scott J. Kelly, and Mission Specialists Janice E. Voss, and others. Over the course of the 11-day mission, the SRTM collected data that would contribute to various applications including land use planning, disaster response, and climate change studies. The data collected from STS-99 ultimately enhanced scientific understanding and provided vital resources for years to come.