Science and technology

Associated Press
FILE - This file image provided by NASA shows a color self-portrait of the Mars rover Curiosity. It is set to drive toward a Martian mountain in mid-February after drilling into a rock. On the 84th and 85th Martian days of the NASA Mars rover Curiosity's mission on Mars (Oct. 31 and Nov. 1, 2012), NASA's Curiosity rover used the Mars Hand Lens Imager (MAHLI) to capture dozens of high-resolution images to be combined into self-portrait images of the rover. (AP Photo/NASA/JPL-Caltech/MSSS, File)

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