Celiark

Celiark is a term used primarily in science fiction and speculative fiction to describe a class of celestial-energy systems or civilizations. It is not a term recognized by real-world astronomy or engineering, and its meaning varies across works. The word is generally treated as a neologism blending elements of celestial or sky-related imagery with the idea of an ark or arc, implying a vessel, network, or structure that interacts with cosmic energy.

In many fictional renderings, a celiark refers to an energy-harvesting network or megastructure that operates along an orbital or celestial arc. A celiark might collect starlight, solar energy, or other cosmic power sources through distributed lattices, sails, or mirrors, amplifying and converting it to usable energy for habitats, ships, or cities. Depictions vary from ancient, sentient architectures to highly automated, contemporary megastructures embedded in planetary or stellar systems. Common features include autonomy, resilience, and a design tuned to celestial rhythms such as orbits, eclipses, or pulsar cycles.

Variants of the concept often emphasize different roles: energy provider, habitat network, or cultural repository. Some narratives use celiarks as symbols of harmony between technology and the cosmos; others present them as fragile or contested installations raising questions about resource ethics, dependence on stellar cycles, or the dangers of powerful architectures.

Celiark remains a fictional construct used in novels, games, and fan scholarship rather than a real scientific term. Related ideas include arcologies, solar sails, megastructures, and energy lattices, all of which explore how civilizations might harness large-scale celestial energy.