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  2. Megastructure - Wikipedia

    en.wikipedia.org/wiki/Megastructure

    A Dyson Sphere is a megastructure added in the Utopia expansion, capable of producing massive amounts of energy at the cost of rendering the solar system uninhabitable, except for Habitats. A Ring World is a megastructure added in the Utopia expansion, offering a solar-system sized habitat equivalent to four massive habitable planets.

  3. Alderson disk - Wikipedia

    en.wikipedia.org/wiki/Alderson_disk

    Rak Mesba is a partial ancient alien Alderson Disk in Orion's Arm, a multi-authored online science fiction world-building project. [6] A disk-shaped planet similar to an Alderson disk (though far smaller) served as the homeworld of the fantasy "Aysle" setting (or "cosm") of West End Games' Torg roleplaying game. In contrast with the Alderson ...

  4. Megascale engineering - Wikipedia

    en.wikipedia.org/wiki/Megascale_engineering

    This might also include transformation of the surface conditions, changes in the planetary orbit, and structures in orbit intended to modify the energy balance. Astroengineering is the extension of megascale engineering to megastructures on a stellar scale or larger, [ 3 ] such as Dyson spheres , [ 4 ] Ringworlds , and Alderson disks .

  5. List of megaprojects - Wikipedia

    en.wikipedia.org/wiki/List_of_megaprojects

    The world's largest manmade island. [citation needed] The Universe: Dubai: Indefinite hold: A planned artificial archipelago in the shape of the Milky Way and Solar System. [citation needed] The World: Dubai: 2003: In progress: $14 billion USD: An artificial archipelago of various small islands constructed in the rough shape of a world map ...

  6. Category:Megastructures - Wikipedia

    en.wikipedia.org/wiki/Category:Megastructures

    This page was last edited on 24 October 2021, at 10:07 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  7. Astronomical engineering - Wikipedia

    en.wikipedia.org/wiki/Astronomical_engineering

    Engineering on an astronomical scale, or astronomical engineering, i.e., engineering involving operations with whole astronomical objects (planets, stars, etc.), is a known theme in science fiction, as well as a matter of recent scientific research and exploratory engineering.

  8. Category:Lists of largest buildings and structures - Wikipedia

    en.wikipedia.org/wiki/Category:Lists_of_largest...

    Pages in category "Lists of largest buildings and structures" The following 46 pages are in this category, out of 46 total. This list may not reflect recent changes. ...

  9. Stellar engine - Wikipedia

    en.wikipedia.org/wiki/Stellar_engine

    One of the simplest examples of a stellar engine is the Shkadov thruster (named after Dr. Leonid Shkadov, who first proposed it), or a class-A stellar engine. [5] Such an engine is a stellar propulsion system, consisting of an enormous mirror/light sail—actually a massive type of solar statite large enough to classify as a megastructure—which would balance gravitational attraction towards ...