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
As the name implies, this reflection nebula associated with the star Rigel looks suspiciously like...
Spotlight Mission
Rossi X-ray Timing Explorer studies variability over time in the emission of X-ray sources, with...
