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	Scientists are particularly interested in Saturn's moon Titan because it's one of the few known moons with its own dense atmosphere. Titan's atmosphere is also thought to be very similar to what Earth's atmosphere was a long time ago. By learning about Titan, we'll learn about our own planet.

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2006-06-20 | MISSIONS
Pace Quickens for NASA Spacecraft Orbiting Mars

NASA's Mars Reconnaissance Orbiter (MRO) arrived at Mars in March and is currently in the 'aerobraking' phase of its mission. MRO is gradually reducing the size of its orbit around Mars by carefully dipping into the martian atmosphere. Aerobraking will be complete in September, and scientists plan to begin the main science phase of the mission in November.

The Mars Reconnaissance Orbiter will use its six instruments to study Mars in unprecedented detail from low orbit, examining Martian features ranging from the top of the atmosphere to underground layering. Researchers will use the spacecraft to study the history and distribution of Martian water and to support future Mars missions by characterizing landing sites and providing a high-data-rate communications relay. Studying the environment of Mars in great detail will help scientists determine the potential for past or present life on the Red Planet.

More on this story Full text of original item from NASA - JPL, Jun 20, 2006

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