Tether Space Elevator Concepts" in Huntsville, Alabama, discussing the issues in making and deploying such a space elevator In August 2000, D.V. Smitherman, Jr., published the findings under the title Space Elevators: An Advanced Earth-Space Infrastructure for the New Millennium, concluding that the space elevator could not be built for at least another 50 years due to concerns about the cable's material, deployment, and upkeep.

Bradley Edwards suggested that a paper-thin ribbon of a carbon