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NASA's science division is focused on better understanding Earth through the Earth Observing System; advancing heliophysics through the efforts of the Science Mission Directorate 's Heliophysics Research Program; exploring bodies throughout the Solar System with advanced robotic spacecraft such as New Horizons and planetary rovers such as ...
NASA, independent U.S. governmental agency established in 1958 for the research and development of vehicles and activities for space exploration. NASA was created largely in response to the Soviet launching of Sputnik in 1957, and its headquarters are in Washington, D.C.