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| Topic | Forum | Replies | Last post |
|---|---|---|---|
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901
Helical Particle Relativity Momentum Transfer Propulsion by tahanson43206
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Interplanetary transportation | 20 | 2019-10-19 03:43:09 by Terraformer |
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902
Dr. Robert Zubrin to appear on TheSpaceShow.com by tahanson43206
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Mars Society International | 0 | 2019-05-13 07:54:21 by tahanson43206 |
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903
Book about Life on Mars by tahanson43206
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Life support systems | 24 | 2018-12-29 19:14:31 by SpaceNut |
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904
Three Scientific Standards Redefined by tahanson43206
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Science, Technology, and Astronomy | 5 | 2018-11-19 16:44:16 by SpaceNut |