Mars Odyssey Orbiter
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One of the chief scientific objectives of 2001 Mars Odyssey is to map the chemical elements and minerals that make up the Martian surface. Other mission objectives:
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* To measure the amount of hydrogen in Mars’ subsurface
* To acquire high-resolution thermal infrared images of surface minerals
* To gather information about the structure of the Martian surface
* To record the radiation environment on the way to Mars and in Mars’ orbit for assessing risk to human explorers
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Note: Odyssey will also serve as a communication relay for U.S. or international scientific orbiters and landers in 2003 and beyond.
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Spacecraft
The framework of the spacecraft is composed mostly of aluminum and some titanium. The use of titanium, a lighter and more expensive metal, is an efficient way to conserve mass while retaining strength. The same materials are used in the construction of high-performance fighter aircraft.
How Stuff Works: www.howstuffworks.com
Source: NASA
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