PASADENA, California (Reuters) – The Mars rover Curiosity, the most sophisticated mobile science lab ever sent to another world, hurtled closer to the Red Planet on Saturday, on track “to fly through the eye of the needle” for a precise, safe landing on Sunday night, NASA officials said. Mission control engineers at the Jet Propulsion Laboratory near Los Angeles acknowledge that delivering the one-ton, six-wheeled, nuclear-powered rover in one piece is a highly risky proposition under the best of circumstances

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