- Long Space Transportation Tethers
 - Introduction to the Mooncable Project, a captive tether, attached to the surface of the lunar body, and The Two-Body-Orbiting Skyhook, a free spinning tether. - SpaceTethers.com
- Approaches the problem of lowering the cost to orbit by advocating the idea of a small air-launched suborbital RLV to get to an orbiting spinning tether.
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