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Mars Rover Plans Roll While Asteroid Acrimony Continues

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Science  19 Jul 2013:
Vol. 341, Issue 6143, pp. 229
DOI: 10.1126/science.341.6143.229

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Two of NASA's boldest plans are getting contrasting messages. An agency science panel this week gave a strong endorsement to the idea of sending a new rover to Mars in 2020 that could cache samples for later return to Earth. But a proposal to capture a small asteroid and then land astronauts on it is attracting widespread criticism.

  • * With reporting by Richard Kerr.