NASA's Curiosity has now been on the surface of Mars for 49 days. In that time, the six-wheeled, one-ton rover has roved 350 meters, made extensive use of all 17 of its on-board cameras, wiggled its robotic arm around a bit, and fired its plutonium-powered laser multiple times. As it bounds across the surface of the Red Planet, Curiosity has even fired neutrons into the ground, testing for the presence of water — but alas, it hasn't found any yet.
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