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Can NASA's Promethean Vision Bring Back Heavenly Data?

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Science  28 Mar 2003:
Vol. 299, Issue 5615, pp. 1969-1970
DOI: 10.1126/science.299.5615.1969

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Planetary scientists applaud NASA's new plan for solar system exploration, which they regard as a strong vote of confidence for their field. But a nuclear component, major technical challenges, and a hefty price tag will make it a tough sell.