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eBook, 2011
Current format, eBook, 2011, 1st pbk. ed, Available.
eBook, 2011
Current format, eBook, 2011, 1st pbk. ed, Available. Offered in 0 more formats
Follow the course of NASA's Mars Exploration Rovers Mission. Learn how scientists determined that there was once water on Mars and how they resolved problems with the rovers in order to prolong the mission.
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