>>10952820Space elevator, uses Earth's spin to hold up a tether via centripetal force, however it requires materials that are orders of magnitude stronger for their weight than anything we currently have, and it needs those supermaterials to be produced in lengths tens of thousands of kilometers long. Far beyond current technology.
A space elevator on Mars would work if it used carbon nanotubes. A space elevator on the moon would work using kevlar or titanium cables. A space elevator on Ceres would work using mild steel, and on any other asteroid for that matter.
Space elevators are likely to be used in the future for flinging material mined from asteroids towards targets where those materials are being used, and for accessing orbit around small moons of gas giants, but not for accessing space from the surfaces of any of the rocky planets (Earth, Venus, Mercury, Mars).
