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Infrastructure · Orbital & Surface Infrastructure · Theoretical

Space Elevator

A cable anchored to the ground and reaching beyond geostationary orbit, up which vehicles would climb to space without rockets. It remains theoretical: no known material has the strength-to-weight needed to build the tether on Earth.

Orbital & Surface InfrastructureTheoretical

Highlights

  • ›Theoretical — no material yet strong enough

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NASANational Aeronautics and Space Administration

    Mission data, planetary science, space telescopes, and public-domain imagery.

    Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.