Dynamics Explorer Type Orbiter Launch Aug. 3, 1981 Target Earth Objective Plasma waves investigation Learn More about the Dynamics Explorer 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
