The international Surface Water and Ocean Topography (SWOT) mission—led by NASA and the French space agency Centre National d'Études Spatiales (CNES)—has sent back some of its first glimpses of water on the planet's surface, showing ocean currents like the Gulf Stream in unprecedented detail. SWOT is also capturing views of freshwater features such as lakes, rivers, and other water bodies down to about 300 feet (100 meters) wide.