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The Mars Exploration Rovers are only 2 of the many spacecraft we’ve sent to Mars. Why is it so interesting? credit: NASA/JPL-Caltech

by Fraser Cain on September 4, 2007

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The Mars Exploration Rovers are only 2 of the many spacecraft we've sent to Mars. Why is it so interesting? credit: NASA/JPL-Caltech

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About

Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay.