Earth

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

Heliophysics

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

Planets

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.

Astrophysics

Discovering the origin, structure, evolution and destiny of the Universe, and searching for Earth-like planets.
Image of the Day
Poised for Flight

August 24, 2009

The space shuttle Discovery is poised for liftoff on the STS-128 mission from Pad 39a at the...

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Spotlight Mission
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Cassini

The Cassini Mission is in the midst of a detailed study of Saturn, its rings, its magnetosphere,...

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