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MSN Encarta - Mars Rover |
 | | The rovers were designed, built, and tested from 2000 to 2003 by a large team led by the California Institute of Technology’s Jet Propulsion Laboratory (JPL) in Pasadena, California. |
 | | Each rover is outfitted with a suite of sophisticated scientific instruments that enable scientists to study in detail the geology and composition of materials at each landing site. |
 | | During the rover night, new commands and sequences are tested, developed, and converted by the team into the stream of radio signals that are sent to the rover after it wakes up the next sol. |
| encarta.msn.com /encyclopedia_701703555/article.html (2101 words) |
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