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Sagan's rationale for human spaceflight - The Space Review

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Link URL: http://www.thespacereview.com/article/261/1
Link Details: Essay describes space scientist Carl Sagan's thoughts on why human flights to space should continue.
Category: Top : Science : Technology : Space : Colonization : Essays_and_Manifestos
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Sagan's rationale for human spaceflight - The Space Review