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Russian experiment to go to Mars on US spacecraft
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NASA: Spirit finds new proof of Martian water
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NASA chief O'Keefe resigns
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NASA head to resign: reports
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Space in 2004: The year in dates
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Space in 2005: The year ahead
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Space in 2004: Robots versus the right stuff
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US, China space agency chiefs hold talks amid proliferation concerns
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Scientists call for global cooperation in space programme
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Cash-strapped Russia aims for unmanned Mars moon landing
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