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Initial Spool/Counterweight craft: LEO to GEO | Hans Rinderknecht | 5 | 2885 |
January 30, 2008, 08:40:08 AMby A_M_Swallow |
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Do we start from the top down from an asteroid « 1 2 » | Stephen | 19 | 4811 |
July 30, 2007, 02:16:58 PM by neil |
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