Abstract: A space transportation system for providing high volume, high mass access to space that includes tethers that extend between the earth and one or more space stations or platforms. One or more counterweights may be utilized at the terminal end of the tethers in space. The tethers utilize may be made of carbon nanotubes or other advanced materials and woven into cables with electromagnets embedding therein. The tethers include tapering profiles along their lengths to facilitate operation of the system. Transport vehicles for passengers and cargo travel up the tethers using electromagnetic levitation and impulsion. Energy from solar panels or movement of the vehicles along the tethers may be generated for use in the system or for supplemental uses.