Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER)
The Advanced Spaceborne Thermal Emission and Reflection Radiometer, flying on the Earth Observing System's Terra spacecraft, is being used to obtain detailed maps of land surface temperature, reflectance and elevation.

Cassini-Huygens
The Cassini-Huygens spacecraft is currently exploring the ringed planet, Saturn, its mysterious moons, its stunning rings and its complex magnetic environment.

Lunar Reconnaissance Orbiter (LRO)
Lunar Reconnaissance Orbiter, scheduled for launch in 2008, will study the Moon's radiation environment, map the lunar topography in high-resolution, scan for resources in the polar regions and map the composition of the lunar surface.

Mars Exploration Rovers (MER)
NASA's twin robot geologists, the Mars Exploration Rovers, launched toward Mars on June 10 and July 7, 2003, in search of answers about the history of water on Mars.

Mars Reconnaissance Orbiter (MRO)
NASA's Mars Reconnaissance Orbiter (MRO) launched in 2005 and is on a search for evidence that water persisted on the surface of Mars for a long period of time.

Mars Science Laboratory (MSL)
The Mars Science Laboratory (MSL) mission is scheduled to land a rover on Mars in 2010, with the goal of assessing the past and present habitability of the area it explores on Mars.

Orbiting Carbon Observatory (OCO)
The Orbiting Carbon Observatory (OCO) is a mission designed to make precise, time-dependent global measurements of atmospheric carbon dioxide (CO₂) from an Earth orbiting satellite.

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