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The seventh landing going back to the moon, this time to stay /
Published 2009Subjects: Full Text (via Springer)
Electronic eBook -
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Spacefaring the human dimension /
Published 2001Subjects: Full Text (via De Gruyter)
Electronic eBook -
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Martian outpost the challenges of establishing a human settlement on Mars /
Published 2009Subjects: Full Text (via Springer)
Electronic eBook