SMS Synchronous Meteorological Satellite Type Orbiter Launch May 17, 1974 and Feb. 6, 1975 Target Earth Objective Demonstrate the ability to put two weather satellites in geosynchronous orbit Learn more about SMS Keep Exploring Discover More from Earth Science Explore Earth Science Earth Science at Work NASA Earth Science helps Americans respond to challenges and societal needs — such as wildland fires, hurricanes, and water supplies… Earth Science Missions In order to study the Earth as a whole system and understand how it is changing, NASA develops and supports… Earth Science Data Open access to NASA’s archive of Earth science data
