the mars rover curiosity, now 63 days into its two-year exploration of the red planet, has analyzed a football-sized rock that nasa scientists say has some surprisingly earth-like qualities.
curiosity's engineers on earth put the drilling and sampling tools on the rover's robotic arm to full use this week as they assessed the makeup of the pyramid-shaped rock. the sample is named jake matijevic, in honor of a senior engineer on the curiosity team who passed away this summer. co-investigator edward stolper of the california institute of technology says the football-size rock is similar to a kind of igneous, or volcanic rock fo
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