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Solar-Sail Enthusiasts Say Mission Lost, Possibly in Space

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Science  01 Jul 2005:
Vol. 309, Issue 5731, pp. 28
DOI: 10.1126/science.309.5731.28b

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Summary

Tantalizing messages ground controllers received from Cosmos 1, a privately funded spacecraft that aimed to demonstrate solar sailing for the first time, shortly after its launch on 21 June hint that it might have made it into orbit before it was lost.