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While Curiosity has beamed back stunning panoramas of its surroundings, its major discovery so far is uncovering the remnants of an ancient streambed. Michael Meyer of NASA headquarters called Curiosity a “CSI laboratory on wheels” that has already revealed a lot about its surroundings.

At $2.5 billion, the Curiosity mission is the most expensive yet to Mars, which has been studied by various, less capable rovers and landers. Curiosity totes around high-tech tools designed to explore the Martian surface in unprecedented detail.

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Online:

NASA: http://mars.jpl.nasa.gov/msl/

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Follow Alicia Chang at http://twitter.com/SciWriAlicia