Category:Megastructures

Megascale engineering is the construction of structures on a scale of at least 1000 km in length, hence the prefix "mega" (1000²=1 million, "mega" means million). Such large-scale structures are termed megastructures.

Astroengineering is the extension of megascale engineering to megastructures on a stellar scale or larger, such as Dyson spheres, Ringworlds, and Alderson discs.

With current technology, only a space elevator or some launch-assist platforms could be built using conventional engineering techniques. Carbon nanotubes may have the requisite tensile strength for a space elevator.