astroengineering means the construction of megastructures in space by technologically advanced beings. Lexicurio rates it Sui generis — a strength score of 86 out of 100.
Why “astroengineering” is a great word
ASTROENGINEERING — [Noun] The theoretical discipline concerned with the design and construction of megastructures in space on a planetary or stellar scale. From the combining form astro- (from Greek ἄστρον, astron, "star, celestial body") + engineering. Unlike terraforming, which aims to reshape a single world for habitability, or aerospace engineering, which is the applied science of craft within an atmosphere, astroengineering is a speculative architecture of the cosmic: the cold calculus for a Dyson sphere harvesting a star's total radiance, the continental plating of a world-engine to shift an orbit, or the patient nudging of a solar system across the galactic dark. It is the ultimate expression of a civilization's refusal to be a passive tenant of the universe.
Etymology
From astro- + engineering.
noun
- The construction of megastructures in space by technologically advanced beings.