Advancing scientific understanding through the use of global satellite measurements to improve human understanding of our home planet.


The exploration of the Sun, its effects on Earth and the planets of the solar system, and space environmental conditions and their evolution.


Advancing scientific knowledge of the origin and history of the solar system, the potential of life elsewhere, and the hazards and resources present as humans explore space.


Discovering the origin, structure, evolution and destiny of the Universe, and searching for Earth-like planets.
Image of the Day
Dione Has Her Faults

January 13, 2009

Saturn's icy moon Dione has undoubtedly experienced geologic activity since its formation, as...

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OCO provides space-based observations of atmospheric carbon dioxide (CO2), the principal...

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