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MARS |
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| Mars Reconnaissance Orbiter |
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| The Mars Reconnaissance Orbiter has a very powerful camera to take pictures of Mars from space. The images are similar to looking out an airplane to see the Earth below. |
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| Mars Exploration Rovers |
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| The twin rovers, Spirit and Opportunity, are exploring areas on opposite sides of Mars, Opportunity has found rocks that indicate liquid water once covered the ground. Scientists think liquid water is a necessary ingredient for life. |
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| Mars Odyssey |
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| From space, this orbiter studies what makes up Mars' surface. It discovered that ice is mixed into the top layer of the surface in many areas of the planet. |
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| SATURN |
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| Cassini |
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| After a nearly seven-year trip to Saturn, the Cassini spacecraft is studying the ringed planet, its moons and rings. |
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| COMETS |
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| Dawn |
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| Dawn, the first spacecraft ever planned to orbit two different bodies after leaving Earth, will orbit Vesta and Ceres, two of the largest asteroids in the solar system. |
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| Epoxi |
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| Epoxi will observe five nearby stars and fly by comet Halley. |
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| Microwave Instrument on Rosetta Orbiter |
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| The European Space Agency's Rosetta spacecraft is on a long trip. It will arrive at a comet in 2014. A JPL instrument on the spacecraft will study gases given off by the comet. |
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| Stardust-NexT |
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| This mission will fly by and investigate comet Tempel 1. |
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